# Unit Converter and Conversion vs Stable Manager

The clearest difference is ads: Stable Manager at none against Unit Converter and Conversion's shown. Stable Manager also leads on update cadence (every 10 days vs every 10 months) and iOS requirement (13.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Unit Converter and Conversion sells 1 one-off in-app purchase and Stable Manager sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Unit Converter and Conversion ships an update every 10 months, Stable Manager every 10 days. The most recent releases landed on October 11, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Unit Converter and Conversion | Stable Manager |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (48 ratings)](https://appshunter.io/ios/app/unit-converter-and-conversion/id1350107532/reviews)** | — |
| Number of ratings | **48** | — |
| Positive reviews | 81.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 49 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Asad Ahsan](https://appshunter.io/developer/1326954499) | [Stable Manager limited](https://appshunter.io/developer/1820655743) |

## What reviewers say

### Unit Converter and Conversion

[App page](https://appshunter.io/ios/app/unit-converter-and-conversion/id1350107532)

This app offers a user-friendly interface for converting units across more than 40 categories, including length, weight, volume, and digital storage. It works offline and saves conversion history for future reference. Ideal for students and professionals needing quick and accurate conversions.

**Highlights:** Over 40 conversion categories, Offline functionality, Conversion history saving, User-friendly interface, Supports length, weight, volume, and more, Elegant graphics

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unit Converter Pro | $4.99 | one-time |


### Stable Manager

[App page](https://appshunter.io/ios/app/stable-manager/id6747298959)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium month | $2.99 | per month |
| Premium 6 months | $12.99 | per 6 months |
| Premium year | $24.99 | per year |


## Frequently asked questions

### Is Unit Converter and Conversion free?

Unit Converter and Conversion is free to download, with in-app purchases available.

### Is Stable Manager free?

Stable Manager is free to download, with in-app purchases available.

### Do Unit Converter and Conversion or Stable Manager have ads?

Unit Converter and Conversion shows ads; Stable Manager does not.

### Which is updated more often, Unit Converter and Conversion or Stable Manager?

Unit Converter and Conversion ships an update every 10 months, and Stable Manager every 10 days. Most recently, Unit Converter and Conversion was updated on October 11, 2026 and Stable Manager on September 27, 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.*