# Reading Fluency vs Tachysophe

The clearest difference is price: Reading Fluency at Free against Tachysophe's $0.99. Reading Fluency also leads on update cadence (every 5 days vs every 3 weeks) and iOS requirement (17.6 vs 26.0). Tachysophe's advantage is in-app purchases (none vs 4) and device support (4 vs 2). On ads there is nothing between them.

Reading Fluency is free to download; Tachysophe costs $0.99 up front. Reading Fluency sells 4 in-app purchases, starting at $2.99 per 7 days. Tachysophe asks for nothing beyond the download.

Reading Fluency ships an update every 5 days, Tachysophe every 3 weeks. The most recent releases landed on October 4, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Reading Fluency | Tachysophe |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Size | 28 MB | 13 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Mehmet Demir](https://appshunter.io/developer/1522952577) | [THOMAS MAURICE LEWINER](https://appshunter.io/developer/1896169051) |

## What reviewers say

### Reading Fluency

[App page](https://appshunter.io/ios/app/reading-fluency-kidsread/id6770613013)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KidsRead Weekly | $2.99 | per 7 days |
| KidsRead Monthly | $6.99 | per month |
| KidsRead Annual | $24.99 | per year |
| KidsRead Lifetime Premium | $34.99 | one-time |


### Tachysophe

[App page](https://appshunter.io/ios/app/tachysophe/id6780024976)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Reading Fluency free?

Reading Fluency is free to download, with in-app purchases available.

### Is Tachysophe free?

Tachysophe costs $0.99, with no in-app purchases.

### Do Reading Fluency or Tachysophe have ads?

Neither Reading Fluency nor Tachysophe shows ads.

### Which is updated more often, Reading Fluency or Tachysophe?

Reading Fluency ships an update every 5 days, and Tachysophe every 3 weeks. Most recently, Reading Fluency was updated on October 4, 2026 and Tachysophe 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.*