# Interchange vs LAB Reads

The clearest difference is rating: LAB Reads at 5.0 against Interchange's 4.3. LAB Reads also leads on in-app purchases (none vs 10) and iOS requirement (10.0 vs 12.2). Interchange's advantage is ratings volume (212 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Interchange sells 9 in-app purchases, starting at $2.49 per month. LAB Reads asks for nothing beyond the download.

LAB Reads holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Interchange has 212 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 6 days. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Interchange | LAB Reads |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (212 ratings)](https://appshunter.io/ios/app/interchange-ebook-converter/id1198053063/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lab-reads/id1509918538/reviews)** |
| Number of ratings | **212** | 1 |
| Positive reviews | 73.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 days | Every 6 days |
| Monetization | Subscription | **Free** |
| Size | 103 MB | 36 MB |
| Requires iOS | 12.2 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [小龙 刘](https://appshunter.io/developer/1171012527) | [Shenzhen Wen Dao Le Si Education and Technology Ltd.](https://appshunter.io/developer/1509918537) |

## What reviewers say

### Interchange

[App page](https://appshunter.io/ios/app/interchange-ebook-converter/id1198053063)

Convert and read a wide variety of ebook formats, including DRM-protected files. Offers extensive customization for reading, note-taking, and book management. Supports multiple import methods and file decompression.

**Highlights:** Multiple ebook format conversion, DRM removal for Kindle books, Customizable ebook reader layout, Note-taking and bookmarking, Customizable book covers, Multiple page-turning methods, Comic reading support, Advanced book management

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UNLOCK ALL FEATURES, REMOVE AD | $2.49 | per month |
| UNLOCK ALL FEATURES, REMOVE AD | $4.99 | per year |
| REMOVE ALL ADS | $1.99 | one-time |
| Conversions+50 | $1.99 | one-time |
| All formats | $1.99 | one-time |
| Conversions+600 | $2.99 | one-time |
| Conversions+1000 | $3.99 | one-time |
| ALL ACCESS, REMOVING AD | $9.99 | one-time |
| All advanced features | $9.99 | one-time |

**What reviewers like**

- 🚀 Fast and quick conversion speeds
- 👍 Easy to use interface
- 📁 Supports multiple file formats
- 💰 Free version available
- 📧 Can send files to Kindle

**What reviewers complain about**

- 🐛 Frequent app crashes and crashes on cover changes
- 😤 Intrusive and excessive advertising
- ❌ Poor conversion quality for PDFs
- 🔤 Confusing and non-intuitive UI
- 🌐 Inconsistent English localization

**Reported bugs**

- App crashes when changing covers
- Ad close buttons are too small or non-functional
- Converted files show as 0 bytes
- App crashes when deleting empty files
- Pro version features still require upgrade prompts

**Requested features**

- Batch conversion capability
- Right-to-left text support for Arabic books
- Proper cover image inclusion in conversions
- Unlimited conversions
- iPad Pro landscape orientation support


### LAB Reads

[App page](https://appshunter.io/ios/app/lab-reads/id1509918538)

Access daily foreign journal content and a vast library of foreign books. Track your reading progress, save notes and highlights, and look up words for easy review. Connect with other readers and build a consistent reading habit.

**Highlights:** Daily foreign journal updates, Search foreign books and journals, Track reading progress, Save notes and highlights, Integrated word lookup, Reader community rankings

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Interchange free?

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

### Is LAB Reads free?

LAB Reads is free to download, with no in-app purchases.

### Which has better reviews, Interchange or LAB Reads?

LAB Reads is rated higher. Interchange averages 4.3 out of 5 from 212 ratings, while LAB Reads averages 5.0 from 1 ratings.

### Do Interchange or LAB Reads have ads?

Neither Interchange nor LAB Reads shows ads.

### Which is updated more often, Interchange or LAB Reads?

Interchange ships an update every 6 days, and LAB Reads every 6 days. Most recently, Interchange was updated on November 2, 2026 and LAB Reads on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*