# Reading Comprehension Grade 3 vs Reading Fluency

The clearest difference is price: Reading Fluency at Free against Reading Comprehension Grade 3's $2.99. Reading Fluency also leads on update cadence (every 5 days vs every 9 months). Reading Comprehension Grade 3's advantage is in-app purchases (none vs 4). On ads, device support and iOS requirement there is nothing between them.

Reading Fluency is free to download; Reading Comprehension Grade 3 costs $2.99 up front. Reading Fluency sells 4 in-app purchases, starting at $2.99 per 7 days. Reading Comprehension Grade 3 asks for nothing beyond the download.

Reading Comprehension Grade 3 ships an update every 9 months, Reading Fluency every 5 days. The most recent releases landed on October 30, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Reading Comprehension Grade 3 | Reading Fluency |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 days** |
| Size | 19 MB | 28 MB |
| Requires iOS | 18.6 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MING LAU](https://appshunter.io/developer/1842370931) | [Mehmet Demir](https://appshunter.io/developer/1522952577) |

## What reviewers say

### Reading Comprehension Grade 3

[App page](https://appshunter.io/ios/app/reading-comprehension-grade-3/id6754496013)

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Reading Comprehension Grade 3 free?

Reading Comprehension Grade 3 costs $2.99, with no in-app purchases.

### Is Reading Fluency free?

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

### Do Reading Comprehension Grade 3 or Reading Fluency have ads?

Neither Reading Comprehension Grade 3 nor Reading Fluency shows ads.

### Which is updated more often, Reading Comprehension Grade 3 or Reading Fluency?

Reading Comprehension Grade 3 ships an update every 9 months, and Reading Fluency every 5 days. Most recently, Reading Comprehension Grade 3 was updated on October 30, 2026 and Reading Fluency on November 3, 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.*