# Flip Discovery vs Lucid Reader

The clearest difference is in-app purchases: Flip Discovery at none against Lucid Reader's 1. Flip Discovery also leads on iOS requirement (13.0 vs 17.0). Lucid Reader's advantage is update cadence (fortnightly vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Lucid Reader sells 1 one-off in-app purchase. Flip Discovery asks for nothing beyond the download.

Flip Discovery ships an update every 6 weeks, Lucid Reader fortnightly. The most recent releases landed on June 2, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Flip Discovery | Lucid Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (16 ratings)](https://appshunter.io/ios/app/flip-discovery/id1585410641/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 217 MB | 4 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [ODYL LLC](https://appshunter.io/developer/1483979459) | [Satoshi Takezawa](https://appshunter.io/developer/1677095481) |

## What reviewers say

### Flip Discovery

[App page](https://appshunter.io/ios/app/flip-discovery/id1585410641)

Discover books beyond bestsellers with AI-powered recommendations. Scan titles you enjoy to find new reads that truly resonate with your tastes. View ratings, reviews, and purchase your next favorite book directly through the app.

**Highlights:** AI-powered book recommendations, Scan favorite books to get suggestions, Browse tailored reading lists, View book ratings and reviews, Purchase books directly from the app

**Features:** macOS Compatibility

**In-app purchases:** none


### Lucid Reader

[App page](https://appshunter.io/ios/app/lucid-reader/id6446276548)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Mode | $0.99 | one-time |


## Frequently asked questions

### Is Flip Discovery free?

Flip Discovery is free to download, with no in-app purchases.

### Is Lucid Reader free?

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

### Do Flip Discovery or Lucid Reader have ads?

Neither Flip Discovery nor Lucid Reader shows ads.

### Which is updated more often, Flip Discovery or Lucid Reader?

Flip Discovery ships an update every 6 weeks, and Lucid Reader fortnightly. Most recently, Flip Discovery was updated on June 2, 2026 and Lucid Reader on September 26, 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.*