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Updated July 2026 · real, multi-region App Store reviews
Head-to-head

Calculator₊ vs Calculator⁼

Calculator₊ 4.7★ · Free + IAP 60
Winner Calculator⁼
Calculator⁼ 4.6★ · Free + IAP 65

Calculator⁼ is generally preferred for basic calculations due to its slightly less aggressive monetization, while Calculator₊ offers more advanced features but at a higher perceived cost and with more intrusive ads.

Full reviews: Calculator₊ · Calculator⁼

Both Calculator₊ and Calculator⁼ are free calculator apps with in-app purchases, but users frequently complain about intrusive ads and aggressive subscription models in both. Calculator₊ offers more advanced features like photo math, but its subscription price is a major point of contention, while Calculator⁼ is simpler but still heavily criticized for ads.

Head to head

Features edge: Calculator₊R2R3R14R17
Calculator₊ Calculator₊ offers advanced features like photo math, scientific calculations, and large fonts, which some users find very helpful R2R17R23. However, many of these features are locked behind a paywall R3R17. Users also note issues with specific functions, such as handling repeating decimals or a missing 'constant' function R14.
Calculator⁼ Calculator⁼ is praised for being simple, easy to use, and providing basic calculation options . Users appreciate features like seeing calculations to double-check their work and large, readable numbers R83. Some users also mention it helps with algebra .
Ease of Use tieR7R16R20R26
Calculator₊ Users find Calculator₊ generally easy to use and appreciate its pleasant interface and button layout R20R26. However, some report significant lag, crashing, and issues with widget functionality R16. The app also frequently prompts for reviews immediately after download R7.
Calculator⁼ Calculator⁼ is consistently described as easy to use, quick, and efficient R83. Users like the clear display of numbers and calculations . The main impediment to ease of use is the overwhelming number of ads and pop-ups that delay access to the calculator .
Reliability tieR5R9R10R14
Calculator₊ Calculator₊ generally works well for calculations R5R9. However, users report issues such as crashing , severe lag when used as a widget R16, and specific bugs like incorrect display of repeating decimals R14. Some paid users also experienced problems accessing their purchases on new devices R10.
Calculator⁼ Calculator⁼ is generally reliable for its core function of calculations . However, some users report the app freezing and the pervasive ads making the app almost unusable or causing it to load slowly .
Price/Value edge: Calculator⁼R1R4R13R19
Calculator₊ Calculator₊ faces strong criticism for its pricing model, with users complaining about recurring subscriptions R1R13R22 that can be as high as $5.99 monthly or $60 annually R1R22R50. Many feel this is excessive for a calculator, especially when free alternatives exist R13R19. The app is also criticized for deceptive practices to push subscriptions R4.
Calculator⁼ Calculator⁼ is free but heavily criticized for its intrusive and excessive ads R61. Users who paid for an ad-free version report still seeing ads, including pop-ups for other apps by the same developer R85. Many feel the value is diminished by the constant interruptions .
Support tieR10R14R39R85
Calculator₊ One user reported an issue with a paid subscription not transferring to a new phone, indicating a potential problem with account or purchase management R10. Another paid user expressed frustration over a bug with repeating decimals and urged the developer to fix it R14. A long-time paid user also lamented the removal of keyboard support and requested its reinstatement R39.
Calculator⁼ Reviews do not contain specific mentions of direct user support interactions, but the recurring complaints about ads, even from paid users, suggest that user feedback regarding monetization practices may not be adequately addressed R85.
Pick Calculator₊ if

You need specific advanced features like photo math or scientific functions, and are willing to pay a premium subscription fee for them, or tolerate significant ads in the free tier R17R23.

Pick Calculator⁼ if

You need a straightforward, easy-to-use calculator for basic operations and are willing to tolerate frequent, intrusive ads, or hope that a one-time purchase might alleviate some of them R83.

Evidence note: Both apps have a high volume of negative recent reviews, primarily centered on intrusive ads and aggressive monetization strategies, which skews their perceived value despite high lifetime ratings. The free-vs-paid asymmetry is significant, as both apps are free with IAP, but the complaints about ads and subscriptions are pervasive across both, indicating that the 'free' experience is heavily compromised.

Frequently asked

Are these calculator apps truly free?
Both Calculator₊ and Calculator⁼ are free to download, but users report that the free experience is heavily marred by numerous, intrusive ads and pop-ups, often making the apps difficult to use without paying R3R4R40R61.
How much do these apps cost to remove ads or unlock features?
Calculator₊ charges a recurring subscription, with users citing prices around $5.99 per month or $60 per year, which is considered very expensive for a calculator R1R22R50. Calculator⁼ also offers paid options to remove ads, but some users who paid still report seeing ads, particularly for other apps by the same developer R85.
Do these apps have any unique features?
Calculator₊ offers advanced features such as photo math for solving problems by uploading a picture R17 and scientific calculations R23, along with options for large fonts R2. Calculator⁼ is noted for its simplicity, ease of use, and the ability to view calculation history to double-check work R83.

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₊ 5/5 · US Appreciative: Large Fonts Are Very Helpful!
  2. [R3] 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.
  3. [R14] Calculator₊ 5/5 · US App bug: I genuinely love your product and have been using the paid version for several years, but for about a month now, an annoying bug has appeared: if the answer to a division problem is a repeating decimal, it doesn't display in the answer line; it just shows "0e0." You have to click on the calculation history to see the actual result. Please fix this; it's quite inconvenient. · translated
  4. [R17] Calculator₊ 4/5 · US Great Calculators: This App Has Great Calculators And Features Such As That It Allows You To Upload A Math Problem Via Photo, For A Price; My Only Issue Is That That Price Is Too Much For An App That I Use On Occasion. I Already Have ChatGPT And So Do Millions Of People, So The Price For This App Is Not Worth It. If It Were, Say, $25 For A Yearly Subscription, Then Yes, Definitely Would Subscribe.
  5. [R7] Calculator₊ 1/5 · US Just got the thing: Why u demand review? Just downloaded and opened for first time.
  6. [R16] Calculator₊ 2/5 · US BROKEN running as a side-Widget: As side-screen widget.. Currency decimal / comma usage is wrong. Also, number entry severely lags responding as widget. Both work fine only when NOT running as a side Widget. iPadOS26. ** Currency usage set for “System Default”, which for me is decimal for fraction, and comma for thousands. Using as Widget the calculator shows the opposite of that. ** Numeric e
  7. [R20] Calculator₊ 5/5 · US Always use this app!!! Easy to use and have had fo many years!: You will love it
  8. [R26] Calculator₊ 5/5 · US Excellent tool: Very handy tool. Love how easy it is to use and at my fingertips whenever I need it!
  9. [R5] Calculator₊ 4/5 · US To caculter: Good math
  10. [R9] Calculator₊ 3/5 · GB Useful!: As I say useful for basic calculations when no paper around to jot down fairly rudimentary sums down! I loose figures in my head if I don’t write them down!!
  11. [R10] 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.
  12. [R1] Calculator₊ 1/5 · US For a Calculator?: Why would I ever pay a reoccurring subscription…even a penny…for a calculator. Get out of here with this $5.99. 🙄
  13. [R4] Calculator₊ 1/5 · US Not Worth Your Time: Shouldn’t have to sift through a million pop ups for a calculator app just to be able to use it. The payment screen for the different memberships also seems intentionally deceiving in my opinion with their “continue for free” button leading you to checkout for their free trial + subscription and the continue without adds option barely visible in the upper corner. Do better. Un
  14. [R13] Calculator₊ 1/5 · US Seriously?: I accidentally tapped on something and it wants to charge me six dollars a month for a calculator? This thing does nothing that you can’t get free very easily.
  15. [R19] Calculator₊ 1/5 · US sucks.: you will have to pay for it, just get any other calculator please.
  16. [R39] 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
  17. [R85] Calculator⁼ 1/5 · US Ads: Paid for the no ads version and ads for their even better calculator pop up every time you open the app. Very distracting. Deleted.
  18. [R40] Calculator₊ 1/5 · US SCAM with ads: There is no reason my CALCULATOR should have ads... definitely use the "Calculator with History" or literally any other calculator that doesnt want you to pay a RIDICULOUS monthly subscription for a CALCULATOR!!!
  19. [R61] Calculator⁼ 1/5 · US Ad: Too many ads on iPad.
  20. [R22] Calculator₊ 2/5 · US Not even remotely worth it.: $60/yr for a calculator with scant more features than Apple’s own calculator? No thanks. This app at most is worth a single purchase of about $2 and certainly NOT worthy of a subscription. The dev is probably relying on the fact that many people forget about their subscriptions so the dev can quietly pocket undeserved money. This isn’t what Steve Jobs had in mind w
  21. [R50] Calculator₊ 1/5 · US $3,120: That’s how much this calculator will cost you for the first 10 years. $6 a WEEK for a calculator?
  22. [R23] Calculator₊ 5/5 · US Effective and efficient.: As a business leader and Management Consultant, This is a great application. It does all science related processes and various non-scientific tasks well. Quality sustained; just an overall well rounded elementary tool. Highly recommend it!!!
  23. [R83] Calculator⁼ 5/5 · US Barbara: So easy to use! I love that you can double check the math as you go along!

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