# Letterloop vs Book Bites Lab

The clearest difference is price: Letterloop at Free against Book Bites Lab's $1.99. Letterloop also leads on chart position (#100 vs unranked). Book Bites Lab's advantage is iOS requirement (12.0 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Letterloop is free to download; Book Bites Lab costs $1.99 up front. Letterloop sells 2 in-app purchases, starting at $5.00 per month and Book Bites Lab sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Letterloop | Book Bites Lab |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.9 (774 ratings)](https://appshunter.io/ios/app/letterloop-group-newsletters/id6468623700/reviews)** | — |
| Number of ratings | **774** | — |
| Positive reviews | 91.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Subscription | — |
| Best chart rank | **#100** | — |
| Size | 78 MB | 39 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Letterloop](https://appshunter.io/developer/1710306872) | [Innovation Platforms LLC](https://appshunter.io/developer/1792296957) |

## What reviewers say

### Letterloop

[App page](https://appshunter.io/ios/app/letterloop-group-newsletters/id6468623700)

**Currently charting:** #100 Top Grossing · Book (US App Store)

Easily create and share group newsletters with friends, family, or teams. The app provides curated questions to spark engaging replies, automatically compiling them into a beautiful newsletter. Stay connected and discover more about the people in your life.

**Highlights:** Group newsletter creation, Customizable questions, Automated newsletter compilation, User-submitted questions, Archived newsletters, Flexible scheduling

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $5.00 | per month |
| Annual Subscription | $50.00 | per year |

**What reviewers like**

- 🤗 Excellent way to stay connected
- 👥 Helps maintain long-distance friendships
- 🎨 Customizable and user-friendly
- 💕 Brings families and friends closer
- 🗓️ Convenient monthly updates

**What reviewers complain about**

- 💰 Subscription cost not transparent
- 🔒 Paywall after initial free issues
- 🤖 Lack of Android support
- 🐛 Technical issues and bugs

**Reported bugs**

- Login and subscription issues
- Functionality problems after initial free period

**Requested features**

- Ability to add multiple photos per issue
- Option to link external content (videos, podcasts, etc.)
- Ability to caption photos
- Save progress when answering questions
- Improved comment section layout


### Book Bites Lab

[App page](https://appshunter.io/ios/app/book-bites-lab/id6740934391)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Yearly Subscription | $19.99 | per year |


## Frequently asked questions

### Is Letterloop free?

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

### Is Book Bites Lab free?

Book Bites Lab costs $1.99, and also offers in-app purchases.

### Do Letterloop or Book Bites Lab have ads?

Neither Letterloop nor Book Bites Lab shows ads.

### Which is updated more often, Letterloop or Book Bites Lab?

Letterloop ships an update every 2 weeks, and Book Bites Lab every 2 weeks. Most recently, Letterloop was updated on November 7, 2026 and Book Bites Lab on October 30, 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.*