2026-11-01★★★★★
5/5
it's reliable 👍
SAMATICA EDUCATION TECHNOLOGY COMPANY LIMITED
7.6.9.690 APK Old versions Merged APK · re-signed
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Scientific calculator plus 991 delivers a full‑featured scientific calculator for students and engineers, supporting everything from basic arithmetic to advanced engineering simulations. Download Scientific calculator plus 991 APK Free and start using the latest Android calculator with offline capabilities.
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a96587159d6184d5...1effcfCategories: Education · Tags: Android, APK, Education, Free Download
Version 7.6.9.690 · 36.9 MB · APK
SHA-256 6febb5980772b2d87e6ab1ebfc13633ab585c4c09c3044fd7a418f8592c7c9ed
Signer a96587159d6184d5a59f2e5a37656587fc9f3de337af454b228bff144c1effcf
Architecture arm64-v8a
Scan result: Safe. 0 of 67 security vendors flagged this file as malicious.
✓ No virus✓ No spyware✓ No malware
Scan date: Nov 02, 2026
View security report on VirusTotal
6febb5980772b2d87e6ab1ebfc13633ab585c4c09c3044fd7a418f8592c7c9ed
a96587159d6184d5a59f2e5a37656587fc9f3de337af454b228bff144c1effcf
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
565,194 ratings
565,194 ratings on AndroidRU. 4,412 written reviews on AndroidRU, 200 shown below. Their honest reviews of this app.
it's reliable 👍
i love this app but now please bring casio 991 cw software also
usefull
not bad
this app is very helpful it's even better than the physical calculator
I had to pay without coercion. The best so far. Never regretted.
very helpful. 👍👩⚕️🤍
Best calculator. Top notch. If I could give six stars I would.
too many ads and is annoying to use.
this app is very helpful.
best calculating app ever
excellent..and easy to use the app same like a casio ..🙂
i like it
honest this is the best app ever, I've got some exams coming up (I'm a freshman) and I lost my calculator so I frantically searched for an app; this app came up and saved my life and it has so many great features too! like currency calculating ect.. a 5 star review is the least I can do (there's alot more kool stuff I wanna mention but this comment is getting too long and I don't wanna bore u out and I almost reached the word limit) :P
really functional
wonderful app thanks to the best who came up with it .
excellent pro calculator, always enjoying it
Very bad
extraordinary magnifiscent
لسه مش جربتها بس متأكده انها هتبقي حلوه
it's good
good for all
beter
I wish there math scanner can do more math
good calculator
user friendly. nice app
Amazing ✔
easy to use
best in solving equations
good
The best and easiest calc ever 💯♥️♥️♥️
4.9 out of 5
very useful app
best method
good
EXCELLENT
good app
Good
its just as smooth
this application is very useful for me to then I rate with 5 out of 5
👍
very best
nice
gud
poppp
excellent
this is the king calculator
favorite calculator
Fantastic Calc , very user friendly !
Great app! Perfectly mimics a hard scientific calculator
Best calculator I have ever used. I am a Maths teacher. This apps have helped my students a lot, specifically FACT & SOLVE. The best thing it is free as well. Thank you team.
It works best and has all the features that has a original calculator should have
Easy and best to use in mobile without having a real calculator.
This is one of the best apps I’ve ever installed, but it’s not perfect for two reasons. First, when I type a number consisting of four digits, it leaves a space between the first and second digits. For example, 1250 is written as 1 250. Second, you’ve removed the old themes, especially the business one, which was more realistic than the current options. I hope you bring the old themes back.
ممتازة
An excellent App indeed
very good calculator app😄😄🥰
Excellent
was impressed with the free version. then I saw all the stupendous features for the premium version. just for the neon coloration screens I was bowled over. my fond memories of my first scientific calculator washed over my nerderific brain. Outstanding work.
nice
nice app
very good
good
excellent for my application
Good 👍
best experience. very easy and real scientifical calculator. love to use this for years
wonderful
work very well and as advertised
excellent
This app is amazing, it solve your equations like a mathematician,WOW 🥺❤️❤️, so amazed by the app
multifunction
very good experience
nice
there is adds
very useful
Nice
👍🏾🫰🏾
very good
I have just one word,,,, amazing 😍
very nice
perfect
very useful to copy in exams 🫣🫣
brilliant
It is really helpful with my mathematics and physical science and it gets the job done.
it is easy to use and the best it doesn't give false answers
good app
to many adds.
it s gooe
it's work wonderful for engineering study
best app of all!!
Very good but expecting few updates in future to make it more user friendly
best
Solved a maths equation from a picture
I purchased pro version on tablet but pro version not showing on my phone. Kindly rectify it
Best calculator app ; it's easy to use and navigate
good
The application contains sexual and inappropriate adds and shown to students.
Great
Does what it says on the tin.
good
الاعلانات
good
best calculator app
the one who made this calculator is a pro
good very
This is me(Mr.Nazmul Haque). I'm a teacher of High School section. I preferred this calculater to use stu,teacher and others. It's really good calculator.
givin it 5☆☆☆☆☆☆ might not be the best it make life worth when using
nice
best
PERFECT FOR MY CALCULATOR SUBSTITUTION
perfect it helps me whenever I forget my calculator but now I do not use my calculater
great app
very complex to use
good
Excellent application.
like it
very good
One of the best calculator app out there.
good so far
very bad
Good app
no ads great app just hope for a more modern interface or else it's practically perfect
great experience
بجد افضل آله ممكن تستخدمها وشامله لكل حاجه لدرجه ان فيها معادلات الكيمياء والفيزياء والرياضيات ومليانه مميزات كتير اكتر من اى اله عاديه وتكاد تكون مرجع شامل لمعظم القوانين الرياضيه والفيزيائية بجد كده حاجه عظمه 🙌🏼
normal calculate ಗೆ ನಿಮಗೆ ಎನ್ different ide...Ella ಒಂದೇ ಇದೆ...100 -98+2 or 100-2/2 ಗೆ ಉತ್ತರ ಕೊಡಿ
good😍
very useful app
It's a very good app. I have been using it for a good while now and I haven't had issues with it.
Such a great app for science students! When my calculator broke, I found this app and it had everything I needed. It works offline without ads and offers so many useful features, from graph plotting and programming to unit conversion. I also love the font and background customization options. I can carry this calculator anywhere because this is in my phone. Thank you to the developers for making this app! (Love from Bangladesh) Recommended to all🥰
better
The app is excellent and its results are correct, but I didn't like the ads it offers because they are +18. What if a child is the one using this app!?
This is the good scientific calculator, I've never seen it before
perfect 👌
I couldn't find how to Save the calculation page so I can do only one calculation. Just has "copy image". Useless to me.
it doesn't give correct answer I've got low levels in my physics paper 1 it is bad😕😏🥱
Good one
best
please change the logo
this is marvelous to use
great
great app I like it but ads are terrible
Too good
soooooooooo much good
كلش خوش حاسبة
it's a very helpful calculator
it is so strong and comfortable
Great app
it has helped me when I forget to bring my own calculator especially when l attend afternoon class with mathematics, Accounting and Economics.
I feel on top telling others l have this calculator. I now have no need to be afraid to get answers to mathematics, further mathematics and other related subjects . Thank you very much Casio
perfect
It's a great calculator 100%
excellent, easy to use even you dont hav wifi
nice
Perfect for my purpose.
ok
excellent app
most valueable app for engineering
Fair
perfect
The best calculator in google play
তুখর
stellar app helped me alot in my o3
love it. now I need to find it in the real world and I'll be good
best to ever exist
wow 😳
🥰
Great
Very easy to use. But I need back space more easy
nice এক্সপেরিয়েন্স
Perfect for me....
ak chile es bien buena, sino me creen instalenlo, Po está a qué si, 🫁🫁🫁🫁🫁🥺🥺🥺🥺🥺🥺🚬🚬🚬🚬🚬🚬
حلو ومفيد ماشاءالله ❤️❤️❤️
good calculator
amazing
very good 👍
super
a handy app when a real scientific calculator isn't with you
there are bad ads 👎
good
very good
whenever i open this app a always end up looking for my phone,because it resembles my exam calculator
it is the most useful calculator app i have so far through as a student you might want to be particular about it. you don't want to find yourself unable to calculate without a calculator.
very realistic and nice and smooth calculatipns !!
nice
is the iOS version available?
looks the same as physical
good
it is good for individual studies and give better understanding to graphs
An excellent calculator! It came with all the functions and features I was looking for and so so many more. Thank you for the great job!
good.
thank you so much. so helpful. Godbless always developers
very good
Best
amazing but not really satisfied due to your charges make it free for those who can't afford charges 😔
good
ok
nice very reliable
very useful
not bad
best calc app, very comlrehensive in what it can do
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