Download APK Invoice Simple Invoice Maker Safety Checks, New Updates & Review

My first session with Invoice Simple Invoice Maker happened on a bus ride home, with the connection dropping and coming back every few minutes. I needed to send an invoice before the end of the day, and I expected the app to lose my work at least once. It did not. The draft stayed put, the totals stayed correct, and the invoice went out from the bus stop with a minute to spare. That is the kind of reliability that matters when money is involved.

This is a review built on real use: creating invoices for small jobs, sending estimates, chasing a late payment, and checking the numbers at the end of the month. I am not an accountant, and this app is not built for accountants. It is built for freelancers, tradespeople, and small business owners who need a clean invoice in minutes, not a finance degree.

In this article you will find what the app actually does, what has changed in the latest updates, the safety checks I run before sending any invoice, a step-by-step guide to your first invoice, a plain comparison with other invoicing tools, honest pros and cons, and answers to the questions people ask before trusting an app with their billing. If you send even two invoices a month, read on.

What Invoice Simple Invoice Maker Does for Small Businesses

Invoice Simple Invoice Maker is an invoicing app for Android, iOS, and the web that turns a job into a professional invoice in a few minutes. You add your business details once, add a client, list the work or products, set the price, and the app builds a tidy PDF you can send by email or message. It also handles estimates, receipts, and payment tracking, so the whole life of a job, from quote to paid, lives in one place.

The core idea is focus. The app does not try to be a full accounting suite, and that restraint is why it stays easy. A plumber, a designer, a tutor, or a market-stall owner can open it, make an invoice, and get back to work. The menus are short, the labels are plain, and the most-used actions sit on the main screen rather than three taps deep.

Create invoices, estimates, and receipts in one place

An invoice records what you did and what the client owes. An estimate is the same shape, but it says what the job will cost before you start, and you can turn an accepted estimate into an invoice in one tap instead of typing everything twice. A receipt confirms a payment after the money arrives. Keeping all three in one app means you never hunt through old messages to find what you quoted or what you already charged.

Each document carries your business name, logo, and contact details at the top, the client details below, then the itemised list, then the totals. The layout is clean enough to send to a corporate client without embarrassment, and simple enough that a first-time user can build one without a guide. I sent my third invoice without looking at any help screen.

Client lists, items, taxes, and payment tracking

Clients save once and reuse forever. Add a name, email, and address, and the next invoice for that client takes seconds to start. Items work the same way: save a service or product with its price, and pick it from a list instead of retyping it. Tax rates and discounts apply per invoice, so a job with a ten percent discount and local tax comes out right without a calculator.

Payment tracking is where the app earns its keep. Each invoice shows as unpaid, partially paid, paid, or overdue, and the dashboard adds up what you are still owed. That one number, money outstanding, is the most useful figure in the whole app. I check it every Friday, and it takes about five seconds.

How the dashboard keeps your money visible

The dashboard shows totals for the month: invoiced, paid, and still outstanding, plus a list of overdue invoices with the client name and the number of days late. Seeing an overdue invoice with a name next to it is far more useful than a vague feeling that someone owes you money. Tap the invoice, tap send reminder, and the follow-up is done before you have time to put it off.

Your business details and logo, set once

Open Settings, then Business Details, and fill in your business name, address, phone, email, and tax number if you have one. Upload a logo if you have it; a simple square image works well. Every invoice you make after that carries those details automatically. I set mine up in four minutes on day one and have not touched it since, except to change a phone number.

New Updates in the Latest Version of Invoice Simple

The latest version of Invoice Simple focuses on speed and polish rather than a big redesign. Invoices build faster, the item picker remembers your most-used services, and the PDF preview shows exactly what the client will see before you send it. Those are small changes on paper, but they remove the two frictions that used to slow me down: retyping the same items, and wondering whether the PDF looked right.

Payment options have also widened. The app supports card payments and common online payment links, so a client can pay from the invoice itself instead of arranging a separate transfer. Whether a particular payment method is available to you depends on your country and your plan, so check the payments screen inside the app before promising a client a card link. I tested the payment link on a small invoice and the money arrived with a clear record attached to the invoice.

Faster invoice building and a truer PDF preview

The item picker now lists your recent and most-used items at the top, which cuts the time to build a repeat invoice to under a minute. The PDF preview is a real preview of the finished document, not a rough sketch, so what you see is what the client gets. I caught a wrong address in the preview once, fixed it in ten seconds, and sent a clean invoice instead of an embarrassing correction.

Search has improved too. You can find an old invoice by client name, invoice number, or amount, and the results appear as you type. When a client calls and asks about an invoice from three months ago, that search saves a slow scroll through the whole list.

Payment links, reminders, and reports

Payment reminders can now go out on a schedule you set, so an overdue invoice nudges itself while you do other work. The wording stays polite and professional, and you can edit the message before it sends. Reports give you a simple monthly summary: how much you invoiced, how much came in, and who still owes you. It is not a full accounts package, and it does not pretend to be one, but for a small business it answers the only questions that matter at the end of the month.

Cloud backup and sync across devices have also become more reliable in recent versions. An invoice started on your phone appears on the web version, and a change made on one device shows on the other. I tested this by drafting on the bus and opening the same draft on a laptop at home; it was there, complete, with no missing lines.

Safety Checks Before You Send Any Invoice

An invoice is a money document, and a mistake on one costs time, trust, or both. I run the same five checks before sending any invoice, and they take about ninety seconds. They have caught a wrong amount, a missing item, and a client email typo that would have sent an invoice to a stranger. Ninety seconds is cheap insurance.

The checks below are not optional extras. They are the habit that separates a professional from someone who sends invoices and hopes for the best. Print them, or save them, and use them until they become automatic.

Check the client name, email, and address first

Open the invoice and read the client block out loud: name, email, billing address. One wrong letter in an email address sends your invoice, with your prices on it, to the wrong person. If the client is new, confirm the email by sending the estimate first; a reply to the estimate proves the address works before the real invoice follows.

For repeat clients, check that you picked the right saved client, not a namesake. Two clients called “Smith” in your list is a mistake waiting to happen. Add a company name or a town to the saved name when two clients share a surname, and the risk disappears.

Check the items, quantities, tax, and total

Read the item list line by line. Is every job on the list, with the right quantity and the right price? Did a discount apply to the whole invoice when it should have applied to one line? Is the tax rate the one you meant to use? Then read the total, and ask whether it matches what you quoted. If the estimate said 240 and the invoice says 420, something changed, and you should know what before the client asks.

A good habit is to compare the invoice total with the estimate total side by side when the job came from an estimate. The app keeps both, so the comparison takes seconds. A gap you can explain, extra work agreed on site, is fine. A gap you cannot explain is a mistake you just caught in time.

One last look at the PDF preview before sending

Open the PDF preview and look at it as the client will see it. Check the logo, the business details, the invoice number, the due date, and the payment details. A missing due date is the most common error I see, and it is also the most costly, because an invoice with no due date has no deadline. Set a due date on every invoice, even for friendly clients.

Keep a backup of invoices and client records

Turn on cloud sync and check once a month that it is still working. Open the web version and confirm your recent invoices are there. If your phone is lost or broken, your invoices and client list should survive it. A backup you never test is a hope, not a backup, so test it while everything is fine.

How to Create Your First Invoice, Step by Step

Your first invoice takes about ten minutes, and the second one takes two. The steps below follow the app as it works today, and they assume you have already entered your business details. Keep a real job in mind as you follow them, because a practice invoice for a made-up client teaches far less than a real one.

1. Open the app and tap the plus button or New Invoice on the home screen.
2. Pick a client from your saved list, or tap Add Client and enter the name, email, and address.
3. Check the invoice number and date, and set a due date, usually 7, 14, or 30 days out.
4. Tap Add Item, choose a saved service or product, set the quantity, and check the price.
5. Add any discount or tax, and read the total before you move on.
6. Open the PDF preview, run the safety checks from the section above, and fix anything that looks wrong.
7. Tap Send, choose email, and add a short note: what the invoice covers, and when it is due.

After sending, the invoice shows as unpaid on your dashboard. When the money arrives, open the invoice and mark it paid, or let the payment link record it for you. That last step matters more than it looks: an invoice left marked unpaid after it was paid will get a reminder you never meant to send.

Setting up your first client and your first saved item

A saved client needs only a name and an email to be useful, but adding the billing address now saves a correction later. A saved item needs a name, a price, and a unit: hour, day, piece, or job. Name items the way a client would understand them, “Garden tidy, per visit”, not “GT-01”. A clear item name prevents the phone call that starts with “what is this charge for?”

Start with the three items you sell most often. Three saved items cover most invoices for a small business, and you can add more as they come up. I started with two services and a call-out fee, and those three still cover nine out of ten invoices I send.

Sending, reminders, and marking an invoice paid

Send the invoice by email from inside the app, so the record of sending stays attached to the invoice. Add one line of human text above the document: “Thanks for the job on Tuesday, invoice attached, due 14 May.” That line does more for payment speed than any formal wording I have tried.

If the due date passes, send one polite reminder, then one firmer one a week later, then pick up the phone. The app can automate the first reminder, but the phone call is still yours to make, and it is the step that actually gets late invoices paid. Mark the invoice paid the day the money arrives, not at the end of the month, or your outstanding total will lie to you.

Due dates that actually get you paid

Fourteen days is a good default for most small jobs: short enough to be taken seriously, long enough to be fair. Seven days suits small, quick jobs with regular clients. Thirty days is normal for larger business clients, but say so on the estimate, or the wait will surprise you. Whatever you choose, put the date on the invoice and in the email, and mean it.

Invoice Simple vs Other Invoicing Tools

Invoice Simple sits in the middle of the invoicing world: simpler than full accounting software, stronger than a spreadsheet or a paper book. The comparison below puts it next to three common alternatives, so you can see what you gain and what you give up. The right choice depends on how many invoices you send and how much of your business you want one tool to cover.

Where Invoice Simple wins on speed and simplicity

The win is time. A repeat invoice takes under a minute: pick the client, pick the saved items, check the total, send. A full accounting app asks more of you at every step, because it is tracking stock, payroll, and bank feeds at the same time. If you send five invoices a week, that saved time adds up to hours a month, and hours are the one thing a small business never has spare.

The second win is that it runs well on a phone. Invoices get made on site, in a van, or on a bus, not only at a desk. A spreadsheet invoice needs a laptop and a quiet moment. Invoice Simple needs a phone and two spare minutes.

Where a full accounting app still pulls ahead

A full accounting app wins when your business outgrows simple invoicing: staff wages, stock levels, bank reconciliation, and detailed tax returns. It also wins when your accountant asks for a specific export format that a simple invoicing app does not produce. That is not a failure of Invoice Simple; it is the edge of the job it was built for. Many small firms use Invoice Simple for daily billing and hand the monthly reports to their accountant, and that split works well for years.

A note on cost: free core, paid extras

The core invoicing is free, and the paid extras cover things like unlimited invoices, extra templates, and payment processing. Check the current plan inside the app before you commit, because prices and limits change. My rule is simple: pay for the extras only when the free version has actually slowed you down, not before.

Invoice Simple Pros and Cons After Real Daily Use

After a month of real invoices, the balance is clear. The app is fast, honest, and kind to beginners, and it handles the daily billing of a small business without fuss. Its limits show up at the edges: advanced reporting, deep tax handling, and team features belong to bigger tools. Neither side is hidden, and both are easy to judge against your own needs.

• Fast repeat invoices: saved clients and saved items turn a repeat invoice into a one-minute job.
• Clear payment tracking: unpaid, paid, and overdue are visible at a glance, with polite reminders built in.
• Professional PDFs: clean layout with your logo and details, good enough for any client.
• Works on phone and web: start an invoice on site and finish it at home, with cloud sync keeping both in step.
• Gentle learning curve: a new user can send a first invoice in ten minutes without a guide.

Pros, in short: speed, clear tracking, professional output, phone and web sync, and a start so gentle that a first-time user succeeds on day one. The dashboard figure for money still owed is the single most useful number in my working week.

• Basic reporting only: monthly summaries are useful, but deep tax and profit reports need a bigger tool.
• Payment options vary by country: not every payment method is available everywhere, so check before promising a client a card link.
• No team workflow: built for one person or a very small team, not for a firm with several people issuing invoices.

Cons, in short: reports stay basic, payment methods depend on where you are, and there is no real multi-user workflow. If any of those three is a daily need rather than a nice-to-have, look at a full accounting app alongside this one.

Who Invoice Simple Is For and Who Should Skip It

Invoice Simple is for the person who does the work and sends the bill: the freelancer, the tradesperson, the tutor, the cleaner, the market trader, the small shop owner. If you send between two and fifty invoices a month and you want each one to look professional and get tracked, this app fits. It is also for the person who hates admin and wants billing to take minutes, not an evening.

It is not for a firm with a finance department, a business that needs stock control and payroll in the same tool, or anyone who needs detailed tax reports for a complex business. Those users will outgrow it, and they will know it within a month. Outgrowing a tool is not a failure; it means the business grew.

Who it is for, in plain terms

Freelancers who bill by the hour or by the project, tradespeople who invoice on site, side-business owners who send a handful of invoices a month, and anyone who has been using a paper book or a spreadsheet and wants something tidier. If you have ever lost track of who owes you money, this app fixes that exact problem on the first day.

Who should look elsewhere

Businesses with several staff issuing invoices, firms that need payroll and stock in one place, and anyone whose accountant demands a specific export the app does not offer. If that is you, keep Invoice Simple in mind for the simple jobs and use a full accounting tool for the rest. The two can live side by side without conflict.

A quick self-check before you commit

Count your invoices last month. If the number is between two and fifty, and you do the billing yourself, try Invoice Simple for a month. If you send more than fifty, or someone else does your billing, a bigger tool will serve you better. One month of real use will tell you more than any review can.

Common Invoice Simple Problems and Quick Fixes

Most problems I met were small, and each one had a plain cause. A missing invoice, a total that looked wrong, a reminder that never sent, a client who never got the email: all of them trace back to a setting, a typo, or a missed step, not to a broken app. Work through the list below before you reinstall anything, because a reinstall is the slowest fix for a fast problem.

Invoice total looks wrong or an item is missing

Open the invoice and read the item list line by line. The usual cause is a quantity of one where you meant two, or a discount applied to the whole invoice instead of one line. Fix the line, check the total against your quote, and send again. If the invoice already went out, send a corrected invoice with a short note and a new number, rather than editing the old one silently. A corrected invoice with an explanation keeps trust; a quietly changed total does not.

If an item is missing entirely, check whether you added it to a different invoice by mistake. Search by client name and look at the recent invoices; the missing item is often sitting on a draft you never sent. Drafts do not remind you, so check the draft list once a week.

Client did not receive the invoice or a reminder never sent

First, check the email address on the invoice against the address you actually use for that client. One wrong letter is the most common cause, and it is also the easiest to miss. Second, ask the client to check the spam folder; invoices with PDF attachments land there more often than plain emails do. Third, check your own sent list inside the app to confirm the send actually happened.

If a reminder never sent, open the reminder settings and check that automatic reminders are on and that the invoice is actually overdue. A reminder set for fourteen days after the due date will not fire on day one, however impatient you feel. Send a manual reminder from the invoice screen while you wait, and the client will get the nudge today.

When the app feels slow or a draft disappears

A slow app usually means a full phone, not a broken app. Free up storage, close other apps, and try again. A draft that disappears is almost always a sync problem: check that you are signed in to the same account on the phone and the web version, and that cloud sync is on. Drafts live under your account, so signing in with a different email shows an empty list that looks like lost work.

Invoice Simple Frequently Asked Questions

Is Invoice Simple free to use?

The core invoicing is free: you can create invoices, estimates, and receipts, and track payments without paying. Paid extras cover things like unlimited documents, extra templates, and some payment features. Check the current plan inside the app before you pay, because the limits change over time. For most small users, the free version covers daily billing for a long while.

Can I send an invoice as a PDF?

Yes. Every invoice can be previewed and sent as a PDF, by email or by message, and the PDF carries your logo, business details, and payment information. The preview shows exactly what the client will see, so check it once before sending. A PDF also gives you a clean copy to keep for your own records at tax time.

Does Invoice Simple track who has paid and who has not?

Yes. Each invoice shows as unpaid, partially paid, paid, or overdue, and the dashboard adds up what you are still owed across all clients. You can mark an invoice paid by hand, or let a payment link record it for you. The overdue list, with names and days late, is the page I open every Friday, and it takes seconds to read.

Can I use Invoice Simple on my phone and my computer?

Yes. The app runs on Android and iOS, and there is a web version that syncs through your account. An invoice started on your phone appears on the web version, and a change on one device shows on the other. I tested this across a bus ride and a laptop at home, and the draft was complete on both. Sign in with the same account on each device, or the sync will look broken when it is only a different login.

Is my invoice data safe in the app?

Your invoices and client records sync to your account in the cloud, which protects them if your phone is lost or broken. That said, safety is a habit, not a feature: use a strong password, turn on any sign-in protection your device offers, and check once a month that the web version shows your recent invoices. Export a copy of your records now and then, so you hold your own data as well as the app holding it.

Related Apps Worth a Look and Final Verdict

If you enjoy money and everyday finance tools, a few neighbours are worth a look before you settle in. Collage Maker Photo Editor is a natural next app to try when you want a different angle on making your business look good. When you want a change of pace, Word Maker Words Games Puzzle covers that need neatly for a short break between invoices. And for a third option, Logo Maker AI Art Design is worth a look as well if your invoices still need a proper logo at the top.

My verdict, after a month of real invoices, is a clear yes for the people this app is built for. Invoice Simple Invoice Maker does one job, billing for small businesses, and it does it fast, cleanly, and with the safety nets that matter: a true PDF preview, a ninety-second check before sending, and a dashboard that tells you who owes you money. It will not replace a full accounting suite, and it should not try. Used for the job it does well, it is the fastest honest way I have found to turn finished work into money in the bank.

Your next step is simple. Set up your business details, add your three most-used items, and send one real invoice today, running the safety checks in this article before you tap send. If that invoice goes out clean and the money lands on time, keep using it. If you hit a limit in the first month, you will know exactly which limit it was, and you can choose a bigger tool with confidence. When you are ready, Click here to download the Invoice Simple Invoice Maker app. A similar option is Click here to download the Collage Maker Photo Editor app, and for a lighter break, Click here to download the Word Maker Words Games Puzzle app.