Big Button Calculator Pro Lite vs Simple Calculator.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Read full descriptionHide full description
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://
Simple Calculator.
A straightforward calculator designed for speed and accuracy, mimicking classic pocket calculators. It offers real-world logic, business-focused calculations like cost, sell, and margin, and a clean interface for effortless use.
- Real-world logic, no forced order of operations
- Running total display
- Cost, sell, margin calculations
- Add/subtract percentages in one step
- Clean, intuitive interface with large buttons
- Minimal, non-intrusive ads
Read full descriptionHide full description
This is the calculator that gets it right—built for professionals, retailers, and anyone who needs fast, accurate math without the complexity. • Work smarter with real-world logic No forced order of operations—just like a classic pocket calculator with a running total. • Perfect for business use Easily handle cost, sell, and margin calculations. Add or subtract percentages in one step. • Clean, intuitive interface Large, labeled buttons and a crisp display make every calculation effortless. • Reliable and distraction-free Minimal ads, never intrusive—so you can stay focused, even in front of clients. Inspired by the Casio calculators you know and trust—modernized for your iPhone/ iPad. Download now and make everyday math faster, clearer, and smarter.
Screenshots
Verdict
Big Button Calculator Pro Lite and Simple Calculator. both sit at 4.7 stars, but that hides the real split: 83% of Big Button Calculator Pro Lite's written reviews are positive against 65% of Simple Calculator.'s. Big Button Calculator Pro Lite also leads on ratings volume (14K vs 1.6K). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.7 for Big Button Calculator Pro Lite against 4.6 for Simple Calculator.. That said, the two scores are not equally well evidenced: Big Button Calculator Pro Lite has 14K ratings behind it against 1.6K, so its average is the more settled of the two. Written reviews are what separate them: 83% of Big Button Calculator Pro Lite's written reviews are positive against 65% of Simple Calculator.'s.
Both ship on a similar rhythm, roughly every 3 months. Both last shipped on October 18, 2026.
| Parameter | Big Button Calculator Pro Lite | Simple Calculator. |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (14K ratings) — better | 4.6 (1.6K ratings) |
| Positive reviews | 82.7% of reviews — better | 65.1% of reviews |
| Number of ratings | 14K — better | 1.6K |
| Update frequency | Every 3 months | Every 3 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.2 — better | 15.6 |
| Further details — not scored | ||
| Size | 45 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Cider Software LLC | tasser gyati |
Customer experience
Big Button Calculator Pro Lite
Simple Calculator.
User reviews
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
Simple Calculator.
From 1.6K App Store ratingsWhat we love
- 👍 Simple and easy to use
- 💡 Supports percentage calculations
- 🚀 Fast and responsive
- 🔒 No security issues reported
Room to improve
- 🐛 Occasional display issues with underline artifacts
- 📢 Intrusive ads in free version
- 💰 Paid version not clearly advertised
Bugs and requests
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
Simple Calculator.
Reported bugs
2 issues- Incorrect calculation results in some cases
- Ads appearing during critical usage scenarios
Requested features
3 requests- Add a dedicated 'C' clear button
- Provide more customization options for key layout
- Implement a history/memory function
In-app purchases
Big Button Calculator Pro Lite
No in-app purchases
Simple Calculator.
No in-app purchases
Questions
Is Big Button Calculator Pro Lite free?
Is Simple Calculator. free?
Which has better reviews, Big Button Calculator Pro Lite or Simple Calculator.?
Do Big Button Calculator Pro Lite or Simple Calculator. have ads?
Which is updated more often, Big Button Calculator Pro Lite or Simple Calculator.?
Other comparisons
