Verithiathe honest score on any app
Updated July 2026 · real, multi-region App Store reviews
Head-to-head

Calculator for iPad! vs Calculator₊

Calculator for iPad! 4.7★ · Free + IAP · ⚠ stale 60
Winner Calculator for iPad!
Calculator₊ 4.7★ · Free + IAP 45

For users seeking a basic, functional calculator without aggressive subscription pushes, Calculator for iPad! might be a slightly better option, despite its ad issues, while Calculator₊ is largely criticized for its subscription model and intrusive ads.

Full reviews: Calculator for iPad! · Calculator₊

Both Calculator for iPad! and Calculator₊ are free apps with in-app purchases, but both are heavily criticized for intrusive ads and aggressive pushes towards paid subscriptions. Calculator for iPad! offers basic and scientific functions, though some users report issues with button detection and split-screen resizing. Calculator₊ faces significant backlash for its high subscription costs and misleading payment screens, despite some users finding it easy to use.

Head to head

Features tieR2R3R5R9
Calculator for iPad! Calculator for iPad! offers basic and scientific calculator modes R2. Users appreciate features like 'm functions' for memory R5 and the ability to see a history of calculations R9. However, some find the scientific mode confusing R3 and note missing functionality like unit converters or the inability to input negatives in scientific mode R25. When in split-screen, some keys may not be visible or functions like exponents are missing R21.
Calculator₊ Calculator₊ provides basic calculations and some advanced features, with users noting it's 'better' than a standard calculator and handles scientific processes well . It also has a photo-upload feature for math problems, though this is a paid feature . However, users report missing basic features like a 'constant' function and issues with high number powers . A bug also prevents periodic answers from displaying correctly .
Ease of Use tieR6R8R18R24
Calculator for iPad! Users describe Calculator for iPad! as 'simple and easy to use' R8. Some appreciate its fast performance . However, there are complaints about buttons failing to detect presses, requiring multiple taps R6. The interface is sometimes described as 'too fancy' R24 or 'boring' R18. Some users also find it slow to open, especially on older devices .
Calculator₊ Calculator₊ is praised for being 'fast, easy to use' and having 'large fonts' that are helpful . Its interface is described as 'pleasant' . However, some users report lag, especially when used as a widget, where number entry can be slow . There are also reports of the app crashing .
Reliability edge: Calculator for iPad!R6R11R21R31
Calculator for iPad! Calculator for iPad! generally 'works as expected' R11. However, users report issues with button detection R6 and the app not resizing correctly in split-screen view, making it unusable R21. One user also reported faulty exponential notation R31.
Calculator₊ Calculator₊ has some reported reliability issues, including crashes and a bug where periodic answers are not displayed in the answer line . When used as a widget, currency decimal/comma usage can be wrong and number entry lags . Some users also experienced problems with paid features not transferring to new devices R73.
Price/Value edge: Calculator for iPad!R4R10R12R13
Calculator for iPad! Calculator for iPad! is free with in-app purchases, but many users are frustrated by the aggressive and intrusive ads that block keys and make the app unusable R4R10R13R19. Some users report that 'everything' is paid, including cosmetic features like backgrounds R12. One review claims a misleading price of '$67' and then '$100 a month' , though this seems to be an outlier or misunderstanding.
Calculator₊ Calculator₊ is also free with in-app purchases, but faces severe criticism for its pricing model. Users are outraged by recurring subscription fees for a calculator, with prices cited as $5.99 a month , $6 a week , or $60 a year . Many feel it's a 'scam' and not worth paying for features that are free elsewhere . Users also report misleading tactics, such as 'continue for free' buttons leading to subscriptions .
Support tieR73R99
Calculator for iPad! Reviews do not provide specific feedback on Calculator for iPad!'s customer support.
Calculator₊ One user reported paying for Calculator₊ but being unable to download it on a new phone, indicating a potential issue with account or purchase transfer R73. Another paid user requested keyboard support to be reinstated, noting they had been waiting for updates and asked the developer to respond R99.
Pick Calculator for iPad! if

Pick Calculator for iPad! if you need a basic or scientific calculator for free and are willing to tolerate frequent, intrusive ads, or if you are looking for an app that is less aggressive with subscription demands R4R10R12R28.

Pick Calculator₊ if

Pick Calculator₊ if you value a 'pleasant overlay' and 'large fonts' and are prepared to pay a recurring subscription for advanced features, despite widespread user dissatisfaction with the pricing model .

Evidence note: Reviews for both apps are heavily skewed towards negative feedback regarding ads and pricing, which is common for free apps with IAP. The lifetime ratings are high, but recent reviews suggest a decline in user satisfaction due to monetization strategies. The comparison focuses on these recent user experiences.

Frequently asked

Are these calculator apps truly free?
Both Calculator for iPad! and Calculator₊ are free to download, but users report that both apps feature intrusive ads that often hinder usability and aggressively push for paid subscriptions to remove them or unlock features R4R10R28R63.
Do these apps offer scientific calculator functions?
Yes, Calculator for iPad! offers both basic and scientific calculator modes R2, and Calculator₊ is also described as handling 'science related processes' , though some users report missing advanced functions or issues with specific notations in both apps R3R25R31.
Are there issues with ads in these apps?
Yes, both apps are heavily criticized for intrusive and annoying ads; users of Calculator for iPad! report ads blocking keys and making the app unusable R4R10R19, while Calculator₊ users complain about 'too many ads' and pop-ups R63.

What reviewers actually said

Built only from these 120 real reviews (foreign ones translated). Superscripts jump to the quote here. Apple has no per-review links, so [ref] opens that app's reviews on the App Store.

  1. [R2] Calculator for iPad! 5/5 · US Calculator for ipad: Basic & scientific calculator
  2. [R3] Calculator for iPad! 3/5 · US It's okay. I just don't understand the scientific mode jkb. · translated
  3. [R5] Calculator for iPad! 5/5 · US I’m so glad it has the m functions: Great
  4. [R9] Calculator for iPad! 3/5 · US Calculadora gratis con ads: Pierde mucho espacio en pantalla que partía aprovechar y además deja una franja grande en la zona inferior para las ads Tiene un buen historial de cálculos realizados y unas notas que no puedes usar sino paga….. por lo demás es una calculadora
  5. [R6] Calculator for iPad! 3/5 · US If you like hitting buttons again and again: This calculator I used for awhile just because split screen worked with this app. However, I noticed I’m consistently hitting buttons over and over because it failed to detect. Found a better calculator app. Won’t be needing this no longer.
  6. [R8] Calculator for iPad! 5/5 · US Simple: Simple and easy to use. Thank you.
  7. [R18] Calculator for iPad! 3/5 · US Boring: Not great 😕😕😕
  8. [R24] Calculator for iPad! 3/5 · US Interface is too fancy.: I don’t know why am having such a difficult time finding a straightforward scientific-style calculator for which I can eliminate advertising for a moderate, flat fee without having to subscribe.
  9. [R11] Calculator for iPad! 4/5 · US Works: Works as expected
  10. [R21] Calculator for iPad! 3/5 · US Deficient: When using split view on ipad the calculator doesn’t resize and you can’t see half of the keys on the calculator keypad
  11. [R31] Calculator for iPad! 1/5 · US The exponential notation is terrible faulty. It doesn’t work.: The exponential notation is terrible faulty. It doesn’t work.
  12. [R4] Calculator for iPad! 2/5 · US Unusable with ad bar: I have been using this calculator for several years, and it was my favorite. However, recently there has been an ad bar across the bottom row of keys, and I can no longer use this calculator. I tried uninstalling it and re-installing it. At first the bar was gone, but the next time I went to use it, the ad bar was back, making it useless.
  13. [R10] Calculator for iPad! 1/5 · US Google Ads Turn Calculator Into Crapulator: It was fine until the google ads started getting slapped up over the keypad. But even if you delete the ad you’re left with a large box obscuring the keypad. It proudly says the ad was removed by google. Idiots!
  14. [R12] Calculator for iPad! 3/5 · US WHY IS EVERY THING UPGRADED PAID: Like I get it but why every thing. I rlly wanted a pink background and marble so just let me watch I dmn ad or smth
  15. [R13] Calculator for iPad! 1/5 · US Ads: The google ads that pop are are way to close to the keypad and it’s very distracting.
  16. [R73] Calculator₊ 1/5 · US I have a problem: Download and liked it so much paid for it . Got a new phone and I could no longer download and use what I already paid for.
  17. [R99] Calculator₊ 3/5 · GB BRING BACK KEYBOARD SUPPORT: FOR THE LOVE OF GOD PLEASE!!!! I AM RE-SUBMITTING THIS REVIEW as after I have waited YET ANOTHER few updates and still the keyboard support has not been reinstated. Not everyone uses their iPad solely touchscreen. I am a desk worker who uses keyboard and mouse, it used to work flawlessly and was removed? Why??? PLEAE RESPOND TO THIS REVIEW DEVELOPER! I have been using
  18. [R28] Calculator for iPad! 1/5 · US Ads… not free: Not ad free… annoying and obnoxious ads.
  19. [R63] Calculator₊ 3/5 · US Don’t recommend: This calculator is not helpful because you have to pay for some stuff and there are ads VERY annoying 😤and I would have put 5 or 4 stars.
  20. [R25] Calculator for iPad! 1/5 · US Not helpful for my math: Scientific calculator not scientific enough for algebra I can’t input negatives
  21. [R19] Calculator for iPad! 1/5 · US Commercial forces purchase: The app is unusable. Commercial blocks the return key.

Synthesized from 120 recent App Store reviews · updated July 2026 · View on the App Store