# AA Big Book e vs CoSponsor

The clearest difference is review sentiment: CoSponsor at 100% against AA Big Book e's 0%. CoSponsor also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 3). AA Big Book e's advantage is ratings volume (20 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. AA Big Book e sells 3 in-app purchases, starting at $4.99 per month. CoSponsor asks for nothing beyond the download.

CoSponsor holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: AA Big Book e has 20 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of AA Big Book e's written reviews are positive against 100% of CoSponsor's.

AA Big Book e ships an update weekly, CoSponsor every 8 days. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | AA Big Book e | CoSponsor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (20 ratings)](https://appshunter.io/ios/app/aa-big-book-e-reader-plus-audio/id6448790511/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cosponsor/id6760132562/reviews)** |
| Number of ratings | **20** | 1 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 8 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 33 MB | 31 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Tushar Bhagat](https://appshunter.io/developer/901932809) | [Eli Blair](https://appshunter.io/developer/1882807868) |

## What reviewers say

### AA Big Book e

[App page](https://appshunter.io/ios/app/aa-big-book-e-reader-plus-audio/id6448790511)

This app provides a digital version of the AA Big Book, allowing users to read, listen to the audio version, and take notes. It features highlighting, bookmarking, search functionality, and a sobriety calculator to support recovery.

**Highlights:** Highlight and color-code text, Take notes and reflections, Bookmark and quick access, Powerful search functionality, Full text of the Big Book, Audio playback, Sobriety calculator

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Quarterly Subscription | $9.99 | per 3 months |
| Annual Subscription | $29.99 | per year |


### CoSponsor

[App page](https://appshunter.io/ios/app/cosponsor/id6760132562)

This AI companion offers confidential, 24/7 support for individuals in 12-step recovery programs. It provides interactive guidance through the 12 steps, a meeting finder, and quick access to grounding tools like the Serenity Prayer.

**Highlights:** 24/7 AI Chat support, Interactive 12-step guidance, Meeting finder (GPS/search), Serenity Prayer & Daily Reflections, Confidential personalized support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AA Big Book e free?

AA Big Book e is free to download, with in-app purchases available.

### Is CoSponsor free?

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

### Which has better reviews, AA Big Book e or CoSponsor?

CoSponsor is rated higher. AA Big Book e averages 4.5 out of 5 from 20 ratings, while CoSponsor averages 5.0 from 1 ratings.

### Do AA Big Book e or CoSponsor have ads?

Neither AA Big Book e nor CoSponsor shows ads.

### Which is updated more often, AA Big Book e or CoSponsor?

AA Big Book e ships an update weekly, and CoSponsor every 8 days. Most recently, AA Big Book e was updated on October 5, 2026 and CoSponsor on October 10, 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.*