# ReadBay vs Fact Fluency

The clearest difference is price: ReadBay at Free against Fact Fluency's $1.99. ReadBay also leads on ratings volume (239 vs 1). Fact Fluency's advantage is in-app purchases (none vs 4) and rating (5.0 vs 4.8). On ads, device support and iOS requirement there is nothing between them.

ReadBay is free to download; Fact Fluency costs $1.99 up front. ReadBay sells 4 in-app purchases, starting at $4.99 per month. Fact Fluency asks for nothing beyond the download.

Fact Fluency holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ReadBay has 239 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | ReadBay | Fact Fluency |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.8 (239 ratings)](https://appshunter.io/ios/app/readbay-book-summaries/id6499073338/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fact-fluency-mental-math/id6743555303/reviews)** |
| Number of ratings | **239** | 1 |
| Positive reviews | 84.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 60 MB | 17 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Bange Sabastine Hwonyi](https://appshunter.io/developer/1708740698) | [Step Up Learning Labs](https://appshunter.io/developer/1803446550) |

## What reviewers say

### ReadBay

[App page](https://appshunter.io/ios/app/readbay-book-summaries/id6499073338)

Access concise summaries and audio versions of bestselling books in under 15 minutes. Master key insights from business, self-help, and personal development titles for faster learning and habit building.

**Highlights:** 15-minute book summaries, Audiobook summaries, Offline reading, Progress tracking, Habit building challenges, Bookmark favorite notes

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Membership | $4.99 | per month |
| Pro Annual Membership | $19.99 | per year |
| Yearly Pro Membership | $24.99 | per year |
| Lifetime Membership | $39.99 | one-time |

**What reviewers like**

- 🚀 Informative and easy to follow
- 👍 Smooth listening experience
- 👍 Broad library of titles
- 👍 Allows reading or listening
- 👍 User-friendly interface

**What reviewers complain about**

- 🐛 Usability issues when multitasking
- 🐛 Audiobook restarts from beginning
- 🔒 Lack of transparency (broken links, no contact info)
- 👎 Limited book recommendations
- 👎 Needs more book options and larger selection

**Reported bugs**

- Purchased lifetime subscription not accessible on new device
- Identical summaries for different books

**Requested features**

- Support for French books
- Ability to share summaries to Kindle
- More language options (e.g., Chinese)


### Fact Fluency

[App page](https://appshunter.io/ios/app/fact-fluency-mental-math/id6743555303)

This app helps children in grades 1-5 build essential math skills through interactive games and progressive learning. It covers addition, subtraction, multiplication, and division with score tracking and rewarding achievements to foster a love for math.

**Highlights:** Addition, subtraction, multiplication, division practice, Three difficulty levels per operation, Interactive math games, Progress tracking and score monitoring, Reward system for achievements, Aligned with grade-level math standards

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ReadBay free?

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

### Is Fact Fluency free?

Fact Fluency costs $1.99, with no in-app purchases.

### Which has better reviews, ReadBay or Fact Fluency?

Fact Fluency is rated higher. ReadBay averages 4.8 out of 5 from 239 ratings, while Fact Fluency averages 5.0 from 1 ratings.

### Do ReadBay or Fact Fluency have ads?

Neither ReadBay nor Fact Fluency shows ads.

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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.*