Calculator 3.0 vs Calculator⁻
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator 3.0
A free, redesigned calculator app offering a simpler, more intuitive experience across Apple devices. Features include customizable themes, advanced scientific functions, and unit conversion, all optimized for various screen sizes and interactions.
- Customizable themes
- Scientific calculator
- Unit converter
- Tip calculator
- Tally counter
- iPad multitasking support
- Apple Watch complications
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Welcome to Calculator 3.0 for Apple Watch, iPhone, iPad, and iMessage! Frustrated with the ugly and complicated Calculators for iPad, Apple Watch, and Apple TV — Calculator 3.0 was created to provide a better simpler choice....all for Free. The "Original Calculator with Themes for iPad and Apple Watch" is back — Rewritten and redesigned for Apple Watch, iPhone, iPad, and iMessage with Bolder Fonts, iPad Multitasking, Native Watch Support with Complications, and Snappier Performance. Apple Watch The Apple Watch Calculator with Colored Watch Band Themes! Designed for the mobile mathematician with a Scientific Calculator, Tip Calculator, Unit Converter, a Tally Counter, Twenty-Six personalized colored themes for your watch band or style, and... • Force Press (firmly press) on the Calculator to changes themes • Big and bold fonts for readability • Haptic feedback upon button presses • Watch Face Complication support for quick access • Tip Calculator with Digital Crown support • Conversion Calculator with Length, Weight, Volume, Area, and Time units • Counter, Tap to increase or use the Digital Crown for faster input, force press for options • Settings, with option to enable Counter number modular face complication support • Autorotation to Share, when enabled the app rotates when rotating your wrist to show a calculation, tip percentage, unit conversion, or tally number to another person iPhone and iPad • Simple bubble dark interface with Scientific Calculator • iPad Multitasking Support (Landscape and Portrait) • Haptic feedback upon button presses (iPhone 7 and greater) • Gesture Controls, Swipe Up for "Light Mode", Swipe Down for "Dark Mode", Swipe Left to clear the displayed number • 3D Touch Icon — Copy Last Number (iPhone 6s and greater) • Bolder fonts • Tap number to copy • "Drag and Drop" support for iPad, perfect for iPad Multitasking - Tap and hold on the displayed number to select for dragging as text into another app - Drag and Drop text numbers from other apps (Mail, Safari, Notes, etc) over the displayed number area to include the number in the current input iMessage app • Simple Calculator • Tap number to paste into message thread
Calculator⁻
A straightforward calculator app designed for simplicity, offering basic arithmetic operations and percentage calculations. It allows users to record and recall past results, customize colors, and enable touch sounds for a personalized experience.
- Basic arithmetic operations
- Percentage calculations
- Record and recall results
- Customizable colors
- Touch sound option
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It is a simple and easy calculator. It is a simple calculator with no complex functions at all. Features: Addition, subtraction, multiplication, division, percent operation Recording and recalling calculation results The numbers, operators, parentheses, results Custom colors Use touch sound Very useful for school children
Screenshots
Verdict
The clearest difference is in-app purchases: Calculator⁻ at none against Calculator 3.0's 3. Calculator 3.0's advantage is ads (none vs shown) and rating (4.7 vs 4.4). On price and ratings volume 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. Calculator 3.0 sells 3 one-off in-app purchases. Calculator⁻ asks for nothing beyond the download.
Calculator 3.0 holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 3.7K and 3.6K respectively. Written reviews point the same way: 67% of Calculator 3.0's written reviews are positive against 52% of Calculator⁻'s.
Calculator 3.0 ships an update fortnightly, Calculator⁻ every 2 months. Both last shipped on October 23, 2026.
| Parameter | Calculator 3.0 | Calculator⁻ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3.7K ratings) — better | 4.4 (3.6K ratings) |
| Positive reviews | 66.7% of reviews — better | 52.0% of reviews |
| Number of ratings | 3.7K — better | 3.6K |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod, Apple TV, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 26 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Spencer Brown | UniCom Technology |
Customer experience
Calculator 3.0
Calculator⁻
User reviews
Calculator 3.0
From 3.7K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Smooth performance
- 💡 Useful features (tip calculator, unit converter, tally counter)
- 🎨 Customizable colors/themes
- 🔍 Clear and legible display
Room to improve
- 🐛 Memory function issues
- 🔊 Loud button click sounds
- 🔍 Cropped display on iPad
- 🔍 Blurry graphics
Calculator⁻
From 3.6K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Efficient calculations
- 💡 Retro design
- 👍 Simple and straightforward
Room to improve
- 🐛 Decimal point issues
- 🐛 Incorrect calculations
- 🐛 Broken buttons
- 🔍 Confusing button layout
Bugs and requests
Calculator 3.0
Reported bugs
3 issues- Incorrect calculation results
- Landscape mode issues
- Crashes after updates
Requested features
4 requests- Add memory function indicator
- Allow disabling of button click sounds
- Optimize layout for iPad
- Improve graphics quality
Calculator⁻
Reported bugs
3 issues- Decimal point problem: .5 becomes 5
- Button that should be 7 shows as 9 and gives 9 when used
- Percentage button does not work correctly
Requested features
3 requests- Backspace button
- Percentage button that works properly
- Arrange buttons in standard calculator layout
In-app purchases
Calculator 3.0
- a Nice Tip$0.99
- a Generous Tip$2.99
- an Amazing Tip!$4.99
Calculator⁻
No in-app purchases
Questions
Is Calculator 3.0 free?
Is Calculator⁻ free?
Which has better reviews, Calculator 3.0 or Calculator⁻?
Do Calculator 3.0 or Calculator⁻ have ads?
Which is updated more often, Calculator 3.0 or Calculator⁻?
Other comparisons
