Uno Calculator vs M3 Expense Tracker
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.
M3 Expense Tracker
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M3 - Expense TrackerM3 - Expense Tracker Stop overthinking your finances. M3 does one thing and does it well: track your spending without getting in your way. JUST TAP AND GO Built-in calculator means no app switching. Type "50 + 25", pick a category, done. Most expenses logged in under 5 seconds. SEE WHERE IT GOES Clean charts break down your spending by category. Compare this week to last week. Spot patterns without spreadsheets or accounting degrees. FIND ANYTHING Search your history by date, category, or note. Every expense, always accessible. WIDGETS AT A GLANCE Today's total on your home screen. No need to open the app. BACKED UP AUTOMATICALLY iCloud keeps everything safe. Switch phones, restore in one tap. Export to CSV if you ever need it elsewhere. 50+ CURRENCIES For wherever you are.Simple to start. Powerful when you need it. M3 helps you understand your spending without the complexity.
Screenshots
Verdict
The clearest difference is price: Uno Calculator at Free against M3 Expense Tracker's $1.99. Uno Calculator also leads on device support (4 vs 1) and iOS requirement (14.2 vs 17.0). M3 Expense Tracker's advantage is update cadence (every 3 days vs every 5 months). On 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
Uno Calculator is free to download; M3 Expense Tracker costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Uno Calculator ships an update every 5 months, M3 Expense Tracker every 3 days. The most recent releases landed on October 7, 2026 and September 28, 2026 respectively.
| Parameter | Uno Calculator | M3 Expense Tracker |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.6 (113 ratings) — better | — |
| Positive reviews | 73.2% of reviews | — |
| Number of ratings | 113 — better | — |
| Update frequency | Every 5 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone |
| Requires iOS | 14.2 — better | 17.0 |
| Further details — not scored | ||
| Size | 96 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Uno Platform Inc. | Pavan Tummala |
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
M3 Expense Tracker
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Uno Calculator
No in-app purchases
M3 Expense Tracker
No in-app purchases
