# Reading Speed/Fluency Builder vs E

The clearest difference is rating: E at 5.0 against Reading Speed/Fluency Builder's 2.3. Reading Speed/Fluency Builder's advantage is update cadence (every 4 months vs every 11 months) and ratings volume (7 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Reading Speed/Fluency Builder sells 3 one-off in-app purchases and E sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

E holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 7 and 2 respectively.

Reading Speed/Fluency Builder ships an update every 4 months, E every 11 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | Reading Speed/Fluency Builder | E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (7 ratings)](https://appshunter.io/ios/app/reading-speedfluency-builder/id1080258925/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/e-cubed-books/id1436898855/reviews)** |
| Number of ratings | **7** | 2 |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 11 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 39 MB | 25 MB |
| Requires iOS | **12.2** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Janine Toole](https://appshunter.io/developer/839832427) | [James Braunreuther](https://appshunter.io/developer/1436898854) |

## What reviewers say

### Reading Speed/Fluency Builder

[App page](https://appshunter.io/ios/app/reading-speedfluency-builder/id1080258925)

This app helps children improve their reading speed and fluency through a game-like environment. It offers graduated practice, audio support, and motivational rewards to build confidence and comprehension skills for young learners.

**Highlights:** Graduated reading practice, Mastery-based progression, Multiple texts per level, Progress reporting, Audio support for fluent reading, Fun reward system, Incremental reading levels

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Up to 2 Users | $1.99 | one-time |
| Access All Levels | $2.99 | one-time |
| Add up to 10 Users | $2.99 | one-time |


### E

[App page](https://appshunter.io/ios/app/e-cubed-books/id1436898855)

This app offers an engaging way for children to learn through interactive books. It combines storytelling, proper English, and video content to educate young minds in an entertaining format.

**Highlights:** Interactive books for kids, Educational content, Storytelling, Proper English lessons, Video integration

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 E-Cubed Book Coin | $0.99 | one-time |
| 5 E-Cubed Books Coins | $4.99 | one-time |
| 10 E-Cubed Books Coins | $9.99 | one-time |
| 20 E-Cubed Books Coins | $19.99 | one-time |
| 30 E-Cubed Books Coins | $29.99 | one-time |
| 40 E-Cubed Books Coins | $39.99 | one-time |
| 50 E-Cubed Books Coins | $49.99 | one-time |


## Frequently asked questions

### Is Reading Speed/Fluency Builder free?

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

### Is E free?

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

### Which has better reviews, Reading Speed/Fluency Builder or E?

E is rated higher. Reading Speed/Fluency Builder averages 2.3 out of 5 from 7 ratings, while E averages 5.0 from 2 ratings.

### Do Reading Speed/Fluency Builder or E have ads?

Neither Reading Speed/Fluency Builder nor E shows ads.

### Which is updated more often, Reading Speed/Fluency Builder or E?

Reading Speed/Fluency Builder ships an update every 4 months, and E every 11 months. Most recently, Reading Speed/Fluency Builder was updated on November 2, 2026 and E on November 2, 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.*