Calculator‰ vs Big Button Calculator Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator‰
This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.
- Large buttons
- Clear display
- Fast calculations
- Intuitive layout
- Retina Display support
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This calculator has a perfect design that maximizes the size of the buttons and display, with a great layout for fast and easy calculations. Retina Display. Download now and see how truly great this basic calculator is.
Big Button Calculator Pro
A user-friendly calculator app featuring large, colorful buttons and a dual-line display for simultaneous input and result viewing. It supports long equations, offers customizable themes and sounds, and includes accessibility features.
- Dual-line display
- Big buttons
- 18 color themes
- Multi-line input
- Gesture controls
- VoiceOver accessibility
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This is THE BEST calculator for iOS with big buttons and colorful backgrounds! ・Dual-line display - shows the input and result at the same time ・Percentage and backspace button ・18 color themes ・Multi-line input for really long equations ・Automatic scientific formatting ・VoiceOver accessibility ・Split View Gestures ・Swipe left on the display to backspace ・Swipe right on the display to clear ・Tap & hold on the result to copy ・Tap & hold on the input to move the cursor, copy, paste Customize ・Color Theme ・Sound URL Scheme: bigcalculatorpro://
Screenshots
Verdict
The clearest difference is price: Calculator‰ at Free against Big Button Calculator Pro's $9.99. Calculator‰ also leads on ratings volume (409K vs 463). Big Button Calculator Pro's advantage is ads (none vs shown) and update cadence (every 2 months vs every 5 months). On rating, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Calculator‰ is free to download; Big Button Calculator Pro costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.9 for Calculator‰ against 4.9 for Big Button Calculator Pro. That said, the two scores are not equally well evidenced: Calculator‰ has 409K ratings behind it against 463, so its average is the more settled of the two. Written reviews are what separate them: 70% of Calculator‰'s written reviews are positive against 79% of Big Button Calculator Pro's.
Calculator‰ ships an update every 5 months, Big Button Calculator Pro every 2 months. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.
| Parameter | Calculator‰ | Big Button Calculator Pro |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 4.9 (409K ratings) | 4.9 (463 ratings) |
| Positive reviews | 69.8% of reviews | 78.6% of reviews — better |
| Number of ratings | 409K — better | 463 |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Paid |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.2 |
| Further details — not scored | ||
| Size | 47 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Tim O's Studios, LLC | Cider Software LLC |
Customer experience
Calculator‰
Big Button Calculator Pro
Bugs and requests
Calculator‰
Reported bugs
2 issues- Calculations sometimes incorrect
- App crashing or freezing
Requested features
4 requests- Percentage key in portrait mode
- Option to remove ads (paid version)
- More customization options
- Memory function
Big Button Calculator Pro
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator‰
No in-app purchases
Big Button Calculator Pro
No in-app purchases
Questions
Is Calculator‰ free?
Is Big Button Calculator Pro free?
Which has better reviews, Calculator‰ or Big Button Calculator Pro?
Do Calculator‰ or Big Button Calculator Pro have ads?
Which is updated more often, Calculator‰ or Big Button Calculator Pro?
Other comparisons
