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Updated July 2026 · real, multi-region App Store reviews
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The verdict on

Basic Calculator+

30
User verdict / 100 High confidence In trouble

Basic Calculator+ is praised for its simplicity and ease of use, making it ideal for straightforward calculations, but recent updates have introduced an overwhelming number of intrusive ads that severely hinder usability and have led many long-time users to delete the app.

⚠ Not updated in 17 months, this app may be abandoned
4.9★ lifetime (256,283) Free to download since 2012 by Christie Clark recent negative 11% 120 reviews across 4 regions
Intrusive Ads Simplicity & Ease of Use Lack of Ad-Free Option Functional Limitations
5★728
4★48
3★21
2★20
1★79
recent reviews across 4 regions, vs the 4.9★ lifetime average

Basic Calculator+ is a free utility app designed for simple calculations, offering a clear and user-friendly interface. While many users appreciate its straightforward functionality, recent updates have significantly increased the frequency and intrusiveness of ads, causing widespread frustration and making the app difficult to use.

What users like

  • Provides basic, straightforward calculation functionality without complex features.R1R2R3R15
  • Features a simple, clear, and easy-to-use interface with large numbers, which is appreciated by many, especially seniors.R4R7R19R22
  • Many users initially found it to be a reliable and convenient tool for everyday calculations.R11R18R23R24

What users complain about

  • The app is now plagued by an excessive number of intrusive full-screen pop-up ads that interrupt calculations and make the app unusable.R8R13R14R28
  • Some ads are difficult to close, force users to download other apps, or are considered inappropriate (e.g., pornographic, malicious-looking).R8R13R14R58
  • The app lacks advanced features like showing numbers used in calculations, memory functions, or proper order of operations for complex expressions.R47R142R202R574
  • There is no option to pay for an ad-free version, despite many users expressing willingness to do so.R63R718R745R291
  • Some users report issues with accuracy, inconsistent click sounds, or the app failing to open.R64R281R292R380

Latest update · v6.2

What the developer says changed (the verdict above weighs this against what reviewers report):

-Bug fix

Recurring themes

Intrusive Ads negative
Many recent reviews highlight a significant increase in full-screen, unskippable, and disruptive ads that pop up frequently, often in the middle of calculations. Users report these ads making the app unusable and leading to frustration and uninstallation. This contradicts the developer's vague 'Bug fix' note, as the ad experience has worsened.R8R14R28R29
Simplicity & Ease of Use positive
Before the ad issues, many users praised the app for its straightforward, basic functionality, clear display, and large numbers, making it easy to use for simple calculations without unnecessary complexity. This is a core appeal for its long-time users.R1R2R3R4
Lack of Ad-Free Option negative
A recurring complaint is the absence of a paid version or an in-app purchase to remove ads, which many users would gladly pay for to continue using the app without interruptions.R63R718R745R291
Functional Limitations negative
Some users point out the lack of more advanced but still basic features, such as displaying the full calculation history, memory functions, or correctly handling order of operations in more complex expressions.R47R142R202R574

Who it's for

This app was previously for users who need a simple, straightforward calculator for basic arithmetic, especially those who appreciate large, clear numbers R22. However, due to the recent overwhelming ad intrusion, it is now difficult to recommend for anyone needing a reliable, uninterrupted calculator experience R510.

Evidence note: The recent reviews heavily skew negative due to the ad experience, which contrasts sharply with the high lifetime rating. The trajectory indicates a significant decline in user satisfaction following recent updates that introduced more aggressive advertising. Evidence for ad issues is very strong and consistent across multiple regions.

Frequently asked

Does Basic Calculator+ have ads?
Yes, Basic Calculator+ now features frequent and intrusive full-screen pop-up ads that interrupt calculations and make the app difficult to use R8R14R46R510.
Can I remove ads by paying for an ad-free version?
No, there is currently no option to pay for an ad-free version of Basic Calculator+, despite many users expressing a willingness to do so R63R718R291.
Is Basic Calculator+ good for complex calculations?
No, Basic Calculator+ is designed for basic arithmetic and lacks features for complex calculations, such as showing calculation history, memory functions, or correctly handling order of operations for expressions with multiple operations R47R142R202R574.

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. [R1] 5/5 · US Basic calculator plus: Awesome calculator easy to use
  2. [R2] 5/5 · US Basic Calculator+: it's exactly what it says: a basic calculator. & they seriously meant "basic!" so don't expect anything else!
  3. [R3] 5/5 · US Calculations: That’s what I need it, basic calculations.
  4. [R15] 5/5 · US Simple: Easy to use No confusion, weird layout of buttons
  5. [R4] 5/5 · US Nice to have: A nice and easy calculator to use for every day stuff.
  6. [R7] 5/5 · US Great Calculator: I am very pleased with my new calculator. Very user friendly.
  7. [R19] 5/5 · US Easy to Use 🙂: I like this calculator because it is so simple to use.
  8. [R22] 5/5 · US Basic calculator: Large numbers for seniors. Easy to use,
  9. [R11] 5/5 · US Handy: This is a very convenient calculator for simple calculations you have to do. No complicated steps.
  10. [R18] 5/5 · US Nice calculator: A nice simple calculator that comes in handy anytime I need it.
  11. [R23] 5/5 · US CH: Quick & easy go to!
  12. [R24] 4/5 · US Great little tool: It is exactly what I want for the house to look at the next month bills and other things that need to be calculated. Without the nonsense of other calculators
  13. [R8] 1/5 · US Blocking calculator: Now it keeps blocking the calculator and keeps an ad up, trying to force me to get an app to scan your phone on an iPad.
  14. [R13] 1/5 · US Crazy app: This app keeps saying I’ve been hacked over and over again,don’t download
  15. [R14] 2/5 · US Ad pop ups ruined this app: I can’t get the app to work any longer. An add popped up and took over when I tried to use it. So I clicked out of the app and back on, the ad is still there. App no longer works. Big fix needed.
  16. [R28] 1/5 · US Horrible: Loaded with adds. Locks up constantly.
  17. [R58] 1/5 · US Deleted because of ads: I deleted this after finding pornographic ads at the bottom of the screen.
  18. [R47] 1/5 · US Does not perform sums of products properly: Tried to do T=a*b+c*d which did not give same answer asT=a*b+d*c and neither were the right answer. For example, if perform multiplications before summations (usual practice if parentheses not used), then 2*3+5*7 = 6+35 = 41 In this app 2*3+5*7=77 And 2*3+7*5=65 It looks like app does ((a*b)+c)*d instead. Should let the user know the precedence of
  19. [R142] 2/5 · US Not any good for calculating your checkbook: I have used this app for years but with the latest upgrade I can no longer see the sum of each entry so I can maintain and double-check my actual line balance. All I can view now is a list of the numbers entered. I also used to be able to hot clear once to remove a data error and hit clear twice to clear everything. Now I lose everything. I am deleting
  20. [R202] 3/5 · US Missing numbers entered: Needs to show numbers used when adding/subtracting.
  21. [R574] 3/5 · CA Memory function missing: It’s a nice, clean and simple app but very basic memory function is missing.
  22. [R63] 2/5 · US Too many ads: I have been using this calculator for years and loved it until recently. All of a sudden annoying ads have started popping up. There’s not even an option to pay to not have ads. I’m done!
  23. [R718] 3/5 · CA Needs a paid version: Agree with many others. This is my favourite calculator - big, clear, easy to use. And I understand the need for ads - the developer needs to make money. Unfortunately the ads make it impossible to use this app in a business environment. This app really needs a paid version or a paid upgrade to get rid of the ads.
  24. [R745] 3/5 · CA Good and simple to use: Just what I wanted. Straight forward calculator and no scientific option in landscape mode. I don't do any complex calculations and I'm happy that it gives me simple and the same math interface in both landscape and portrait mode. I would give it 5 starts but the ads as the bottom are VERY annoying and distracting and there is no option to remove them. I don't mind to pay
  25. [R291] 1/5 · GB Update = A Mess: Until the Feb 2025 update, this was a wonderful app. Now it’s been messed up by having full page ads randomly block the app mid calculation. There’s no option to remove ads for a small fee, either. Silly billy developer.
  26. [R64] 1/5 · US It would not open: I tried several times but it wouldn’t open up.
  27. [R281] 3/5 · GB Bad: Trash inaccurate adds and overall bad
  28. [R292] 3/5 · GB Inconsistent click volume: Every few soft clicks it gives an annoying loud click. This is totally unpredictable.
  29. [R380] 3/5 · GB Good: It is good but there needs more answer and all the answers are not correct as well
  30. [R29] 1/5 · US Was great before ads: Loved it, now ads pop up right in the middle of a calculation
  31. [R46] 3/5 · US Please reduce the ads: The basic calculator works great, but many times now, every time I try to remember a number to put into the calculator I find myself trying to get out of the ads first . These popups have progressively gotten to the frustration point to the user. I do realize that income is necessary and that comes from the ads, but all it does is make me want to not purchase from those comp
  32. [R510] 1/5 · CA Ads galore!!: Absolutely unusable! Pop up ads like I’ve never seen. Every time you want to make a quick calculation you are bombarded with a ridiculous amount of ads. DELETED

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