Calculator HD Pro vs Big Button Calculator Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator HD Pro
This app offers a powerful and customizable calculator experience with a dual-line display for seeing input and results simultaneously. Save and organize your calculations with history, labeling, and email options. Personalize layouts, themes, and fonts for a comfortable and efficient user experience.
- Dual-line display
- Multi-line input
- Calculation history
- Customizable layouts and themes
- Full scientific functions
- Left-handed mode
- VoiceOver accessibility
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A colorful calculator with big buttons, comprehensive features, and extensive customization. Used by millions. Completely ad-free. SEE EVERY STEP ・Dual-line display - shows your input and result simultaneously ・Multi-line input for long equations ・Tap & hold to move the cursor or copy and paste where you want SAVE YOUR WORK ・History saves every calculation with time and date ・Label important calculations for easy reference ・Email single calculations or complete history ・Swipe down to review previous work CUSTOMIZE EVERYTHING ・6 layouts including extra-large button options ・10 color themes plus Dark Mode ・Adjustable font size and bold text ・Left-handed mode ・Show or hide features you don't need SCIENTIFIC FUNCTIONS ・Full scientific calculator when needed ・Memory buttons with values displayed ・Percentage and backspace buttons ・Automatic scientific notation ・VoiceOver accessibility OPTIONAL IN APP PURCHASES ・Today View Widget (iOS 17 and below) ・Multiple History Tapes ADDITIONAL FEATURES ・Customizable button symbols and decimal settings ・Multiple backspace button styles ・iPad Split View and 3D Touch support ・Gesture controls for quick access URL Scheme: calculatorhdpro://
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 in-app purchases: Big Button Calculator Pro at none against Calculator HD Pro's 2. Calculator HD Pro's advantage is ratings volume (11K vs 477) and review sentiment (95% vs 79%). On price, rating, update cadence and ads 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 HD Pro costs $9.99 and Big Button Calculator Pro $9.99 up front. Calculator HD Pro sells 2 one-off in-app purchases. Big Button Calculator Pro asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.8 for Calculator HD Pro against 4.9 for Big Button Calculator Pro. That said, the two scores are not equally well evidenced: Calculator HD Pro has 11K ratings behind it against 477, so its average is the more settled of the two. Written reviews are what separate them: 95% of Calculator HD Pro's written reviews are positive against 79% of Big Button Calculator Pro's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 2, 2026 and November 1, 2026 respectively.
| Parameter | Calculator HD Pro | Big Button Calculator Pro |
|---|---|---|
| Price | $9.99 | $9.99 |
| Rating | 4.8 (11K ratings) | 4.9 (477 ratings) — better |
| Positive reviews | 94.9% of reviews — better | 78.6% of reviews |
| Number of ratings | 11K — better | 477 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.2 | 15.2 |
| Further details — not scored | ||
| Size | 48 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Cider Software LLC | Cider Software LLC |
Customer experience
Calculator HD Pro
Big Button Calculator Pro
Bugs and requests
Calculator HD Pro
Reported bugs
2 issues- Cannot delete lists in history tapes
- Ads still appear after purchasing full version
Requested features
3 requests- Add binary, decimal, and hex conversion
- Ability to manually sort result lines
- Add a tax calculation button
Big Button Calculator Pro
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator HD Pro
- Widget$1.99
- Multiple History Tapes$1.99
Big Button Calculator Pro
No in-app purchases
Questions
Is Calculator HD Pro free?
Is Big Button Calculator Pro free?
Which has better reviews, Calculator HD Pro or Big Button Calculator Pro?
Do Calculator HD Pro or Big Button Calculator Pro have ads?
Which is updated more often, Calculator HD Pro or Big Button Calculator Pro?
Other comparisons
