Uno Calculator vs Programmer's Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Uno Calculator
This app offers a comprehensive suite of calculation tools, handling everything from basic arithmetic to complex unit conversions. It supports measurements for size, temperature, speed, energy, and currency, making it a versatile solution for diverse needs.
- Arithmetic calculations
- Unit conversions
- Size measurements
- Temperature conversions
- Speed calculations
- Energy calculations
- Currency exchange
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The powerful Uno Calculator receives a makeover from Uno Platform with a wide variety of features. From calculations to measurements of size, temperature, speed, energy, currency and more, the calculator is a powerful one-stop-shop for all calculation-related needs.
Programmer's Calculator
This application serves as a versatile calculator designed for programmers. It supports conversions and calculations across binary, decimal, and hexadecimal number systems.
- Binary number support
- Decimal number support
- Hexadecimal number support
- Number system conversions
- Programmer-focused calculations
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A calculator for programmers that supports binary numbers, decimal numbers, and hexadecimal numbers. Terms of Use : https://norche.jp/app_terms.html Privacy Policy : https://norche.jp/app_policy.html
Screenshots
Verdict
The clearest difference is in-app purchases: Uno Calculator at none against Programmer's Calculator's 1. Uno Calculator also leads on review sentiment (73% vs 62%) and device support (4 vs 2). Programmer's Calculator's advantage is ratings volume (845 vs 113) and iOS requirement (10.0 vs 14.2). 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. Programmer's Calculator sells 1 in-app purchase, starting at $0.99 per month. Uno Calculator asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.6 for Uno Calculator against 4.7 for Programmer's Calculator. That said, the two scores are not equally well evidenced: Programmer's Calculator has 845 ratings behind it against 113, so its average is the more settled of the two. Written reviews are what separate them: 73% of Uno Calculator's written reviews are positive against 62% of Programmer's Calculator's.
Uno Calculator ships an update every 5 months, Programmer's Calculator every 6 months. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.
| Parameter | Uno Calculator | Programmer's Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (113 ratings) | 4.7 (845 ratings) — better |
| Positive reviews | 73.2% of reviews — better | 62.1% of reviews |
| Number of ratings | 113 | 845 — better |
| Update frequency | Every 5 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPod |
| Requires iOS | 14.2 | 10.0 — better |
| Further details — not scored | ||
| Size | 96 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Uno Platform Inc. | Yuma Kitasei |
Customer experience
Uno Calculator
Programmer's Calculator
User reviews
Uno Calculator
From 113 App Store ratingsWhat we love
- 💰 Completely free with no ads or in-app purchases
- 🎨 Clean, minimalist, and intuitive user interface
- 🔧 Multiple calculator modes (standard, scientific, programmer)
- 📊 Useful unit conversion features
- 📜 Helpful history and memory panes for tracking calculations
Room to improve
- ⌨️ No keyboard input support on Mac or iPad (major recurring complaint)
- 📍 Calculator buttons positioned on left side (inconvenient for right-handed users)
- 📜 History pane cannot be hidden or minimized
- ⏱️ Slower app launch time compared to stock calculator
- 🐢 Laggy performance on macOS with slow button responsiveness
Programmer's Calculator
From 845 App Store ratingsWhat we love
- 🚀 Straightforward and highly functional
- 👍 Easy to use
- 💡 Useful for coding and calculations
- 👍 Practical for binary and hex operations
- 👍 Displays decimal, binary, and hex simultaneously
Room to improve
- 🐛 Ads take too long to click out of
- 🐛 Subscription did not remove ads
- 🐛 App freezes and crashes
- 🔋 High battery consumption
Bugs and requests
Uno Calculator
Reported bugs
10 issues- Standard calculator mode doesn't follow order of operations (1+2*3 = 9 instead of 7)
- Buttons disappear while using on iPad
- Apple Pencil input causes buttons to blend into background
- Slow key responsiveness on macOS
- Numeric keypad input not recognized from Apple keyboard
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- History not persisting after app closure
- Text rendering issues on larger iPad displays
- Unit conversion errors (volume translated incorrectly in Chinese)
- Slow data entry on macOS Catalina
- Landscape mode layout issues
Requested features
11 requests- Keyboard input support for Mac and iPad (most requested)
- Copy and paste functionality for results and formulas
- Option to reposition calculator buttons to right side
- Ability to hide or collapse history pane
- Persistent history that saves after app closes
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- Sound/click feedback option in settings
- Donation option within the app
- Improved dark mode styling
- Bluetooth keyboard support
- Numeric keypad support for external keyboards
- Currency conversion feature restoration
Programmer's Calculator
Reported bugs
2 issues- Login screen freezes
- Incompatible with older devices
Requested features
6 requests- Add octal support
- Implement RPN input mode
- Add 2's complement and bit shift functions
- Provide visual feedback on calculations
- Allow setting number of bits
Show 1 moreShow fewer
- Add landscape mode support
In-app purchases
Uno Calculator
No in-app purchases
Programmer's Calculator
- Premium member$0.991 Month
Questions
Is Uno Calculator free?
Is Programmer's Calculator free?
Which has better reviews, Uno Calculator or Programmer's Calculator?
Do Uno Calculator or Programmer's Calculator have ads?
Which is updated more often, Uno Calculator or Programmer's Calculator?
Other comparisons
