Calculator Plus vs Big Button Calculator Pro Lite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator Plus
This free iPad application offers a large, easy-to-read interface for performing basic calculations. Its user-friendly controls ensure immediate usability for everyday mathematical needs.
- Large, easy-to-read display
- User-friendly controls
- Basic calculations
- Free to use
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Calculator, unit converter, and bill splitter in one iPad app Calculator Basic arithmetic plus percentage, sign toggle, and saved calculation history. Long-press the total to copy it. Unit Converter Convert length (cm/inch/m/ft), weight (g/kg/lb/oz), temperature (Celsius/Fahrenheit), area (square meters/tsubo/tatami), and data storage (MB/GB/TB) — right from the calculator screen. Split Bill Enter the total and the number of people to instantly see each person's share, including service charge or tip. Handy for travel, shopping abroad, apartment hunting, and everyday life.
Big Button Calculator Pro Lite
A user-friendly calculator app featuring large buttons and customizable colorful backgrounds. It offers a dual-line display, multi-line input for complex equations, and convenient gesture controls for editing and copying.
- Large buttons
- Dual-line display
- 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! This version is ad supported. ・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 update cadence: Calculator Plus at every 2 weeks against Big Button Calculator Pro Lite's every 3 months. Calculator Plus also leads on monetization model (free vs ad-supported). Big Button Calculator Pro Lite's advantage is rating (4.7 vs 4.5) and ratings volume (14K vs 2.2K). On price, review sentiment, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Big Button Calculator Pro Lite holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Big Button Calculator Pro Lite has 14K ratings behind it against 2.2K, so its average is the more settled of the two. Written reviews split almost evenly too, at 83% and 83% positive.
Calculator Plus ships an update every 2 weeks, Big Button Calculator Pro Lite every 3 months. Both last shipped on September 26, 2026.
| Parameter | Calculator Plus | Big Button Calculator Pro Lite |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2.2K ratings) | 4.7 (14K ratings) — better |
| Positive reviews | 82.6% of reviews | 82.8% of reviews — better |
| Number of ratings | 2.2K | 14K — better |
| Update frequency | Every 2 weeks — better | Every 3 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.2 |
| Further details — not scored | ||
| Size | 7 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Studio Zebra | Cider Software LLC |
Customer experience
Calculator Plus
Big Button Calculator Pro Lite
User reviews
Calculator Plus
From 2.2K App Store ratingsWhat we love
- 👍 Easy to use
- 👍 Large, clear numbers
- 👍 Simple and straightforward
- 👍 Great for basic calculations
- 👍 Convenient on iPad
Room to improve
- 🐛 Decimal point issues
- 🐛 Inaccurate percentage calculations
- 💡 Lack of history/memory
- 💡 No backspace/undo function
- 🔍 Ads can be distracting
Big Button Calculator Pro Lite
From 14K App Store ratingsWhat we love
- 👍 Easy to use
- 💡 Customizable backgrounds
- 🚀 Accurate calculations
- 👍 Large, clear numbers
- 👍 Helpful for homeschooling
Room to improve
- 🐛 Ads can be intrusive
- 🐛 Ads in foreign languages
- 🐛 Ads take time to close
- 🔋 High battery consumption due to ads
Bugs and requests
Calculator Plus
Reported bugs
2 issues- Decimal point not working properly
- Incorrect percentage calculations
Requested features
3 requests- Add backspace/undo function
- Improve decimal point and percentage calculations
- Provide option to remove ads
Big Button Calculator Pro Lite
Reported bugs
2 issues- Occasionally shows answer before calculation is complete
- Rounding issues leading to inaccurate results
Requested features
4 requests- Add more background options
- Allow custom background uploads
- Add option to change button colors
- Improve ad experience or offer ad-free version
In-app purchases
Calculator Plus
No in-app purchases
Big Button Calculator Pro Lite
No in-app purchases
Questions
Is Calculator Plus free?
Is Big Button Calculator Pro Lite free?
Which has better reviews, Calculator Plus or Big Button Calculator Pro Lite?
Do Calculator Plus or Big Button Calculator Pro Lite have ads?
Which is updated more often, Calculator Plus or Big Button Calculator Pro Lite?
Other comparisons
