# Calculator Mini vs All Units Convertor

The clearest difference is rating: All Units Convertor at 5.0 against Calculator Mini's 2.5. All Units Convertor also leads on update cadence (fortnightly vs every 51 months). Calculator Mini's advantage is in-app purchases (none vs 2) and ratings volume (4 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. All Units Convertor sells 2 one-off in-app purchases. Calculator Mini asks for nothing beyond the download.

All Units Convertor holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Calculator Mini ships an update every 51 months, All Units Convertor fortnightly. The most recent releases landed on October 11, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Calculator Mini | All Units Convertor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (4 ratings)](https://appshunter.io/ios/app/calculator-mini/id937255022/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/all-units-convertor/id1611287048/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 51 months | **Fortnightly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 6 MB | 11 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [newforestar co,.ltd](https://appshunter.io/developer/293922531) | [恒卓 刘](https://appshunter.io/developer/509484187) |

## What reviewers say

### Calculator Mini

[App page](https://appshunter.io/ios/app/calculator-mini/id937255022)

This utility app offers a streamlined calculator experience with a large key layout and customizable function keys. It includes calculation history and allows easy copying of results to other applications, optimized for a variety of Apple devices.

**Highlights:** Big key layout, Customizable function keys (% , TAX, √￣, right shift), Calculation history, Copy result to clipboard, 16-digit display, Optimized layout with '00' and big addition keys

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### All Units Convertor

[App page](https://appshunter.io/ios/app/all-units-convertor/id1611287048)

Easily convert between various units of measurement, including currency, length, mass, and temperature. Features real-time currency exchange rates and a clean, intuitive interface for quick conversions.

**Highlights:** Supports 10 common unit types, Real-time currency exchange rates, Clear, at-a-glance conversions, iOS system UI compatibility, Converts currency, energy, length, temperature, mass, angle, time, area, bytes, force, volume, torque

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一杯可乐 | $0.99 | one-time |
| 一杯咖啡 | $1.99 | one-time |


## Frequently asked questions

### Is Calculator Mini free?

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

### Is All Units Convertor free?

All Units Convertor is free to download, with in-app purchases available.

### Which has better reviews, Calculator Mini or All Units Convertor?

All Units Convertor is rated higher. Calculator Mini averages 2.5 out of 5 from 4 ratings, while All Units Convertor averages 5.0 from 1 ratings.

### Do Calculator Mini or All Units Convertor have ads?

Both Calculator Mini and All Units Convertor show ads.

### Which is updated more often, Calculator Mini or All Units Convertor?

Calculator Mini ships an update every 51 months, and All Units Convertor fortnightly. Most recently, Calculator Mini was updated on October 11, 2026 and All Units Convertor on October 15, 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.*