# Metric Converters vs Reading Tool

The clearest difference is price: Reading Tool at Free against Metric Converters's $0.99. Reading Tool also leads on update cadence (every 5 days vs every 38 months). Metric Converters's advantage is iOS requirement (14.1 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

Reading Tool is free to download; Metric Converters costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Metric Converters ships an update every 38 months, Reading Tool every 5 days. The most recent releases landed on October 23, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Metric Converters | Reading Tool |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 5 days** |
| Size | 20 MB | 4 MB |
| Requires iOS | **14.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [H Valeur](https://appshunter.io/developer/621824042) | [CreationAct (Shanghai) Technology Co., Ltd.](https://appshunter.io/developer/1770311812) |

## What reviewers say

### Metric Converters

[App page](https://appshunter.io/ios/app/metric-converters/id1570182170)

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

**In-app purchases:** none


### Reading Tool

[App page](https://appshunter.io/ios/app/reading-tool/id6753701748)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Metric Converters free?

Metric Converters costs $0.99, with no in-app purchases.

### Is Reading Tool free?

Reading Tool is free to download, with no in-app purchases.

### Do Metric Converters or Reading Tool have ads?

Neither Metric Converters nor Reading Tool shows ads.

### Which is updated more often, Metric Converters or Reading Tool?

Metric Converters ships an update every 38 months, and Reading Tool every 5 days. Most recently, Metric Converters was updated on October 23, 2026 and Reading Tool on October 12, 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.*