# Uno Calculator vs M3 Expense Tracker

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.

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.

## The numbers

| Metric | Uno Calculator | M3 Expense Tracker |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.6 (113 ratings)](https://appshunter.io/ios/app/uno-calculator/id1464736591/reviews)** | — |
| Number of ratings | **113** | — |
| Positive reviews | 73.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 96 MB | 3 MB |
| Requires iOS | **14.2** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Uno Platform Inc.](https://appshunter.io/developer/1617866832) | [Pavan Tummala](https://appshunter.io/developer/1844074888) |

## What reviewers say

### Uno Calculator

[App page](https://appshunter.io/ios/app/uno-calculator/id1464736591)

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.

**Highlights:** Arithmetic calculations, Unit conversions, Size measurements, Temperature conversions, Speed calculations, Energy calculations, Currency exchange

**In-app purchases:** none

**What reviewers like**

- 💰 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

**What reviewers complain about**

- ⌨️ 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

**Reported bugs**

- 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

**Requested features**

- 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


### M3 Expense Tracker

[App page](https://appshunter.io/ios/app/m3-expense-tracker/id6757203247)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Uno Calculator free?

Uno Calculator is free to download, with no in-app purchases.

### Is M3 Expense Tracker free?

M3 Expense Tracker costs $1.99, with no in-app purchases.

### Do Uno Calculator or M3 Expense Tracker have ads?

Neither Uno Calculator nor M3 Expense Tracker shows ads.

### Which is updated more often, Uno Calculator or M3 Expense Tracker?

Uno Calculator ships an update every 5 months, and M3 Expense Tracker every 3 days. Most recently, Uno Calculator was updated on October 7, 2026 and M3 Expense Tracker on September 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*