# Cosy Case vs OnlyBooks

The clearest difference is in-app purchases: OnlyBooks at none against Cosy Case's 8. Cosy Case's advantage is update cadence (every 6 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Cosy Case sells 8 in-app purchases, starting at $4.99 per month. OnlyBooks asks for nothing beyond the download.

Cosy Case ships an update every 6 days, OnlyBooks monthly. The most recent releases landed on November 8, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Cosy Case | OnlyBooks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (104 ratings)](https://appshunter.io/ios/app/cosy-case-digital-bookshelf/id6747253733/reviews)** | — |
| Number of ratings | **104** | — |
| Positive reviews | 56.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 99 MB | 55 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Griffin Ciluffo](https://appshunter.io/developer/1801506442) | [Devin Smith](https://appshunter.io/developer/1895330227) |

## What reviewers say

### Cosy Case

[App page](https://appshunter.io/ios/app/cosy-case-digital-bookshelf/id6747253733)

Create a visually appealing digital bookshelf to organize your reading. Earn rewards for reading milestones and customize your shelves with decorations. Track your progress, log reviews, and share your collection with friends.

**Highlights:** Build a digital bookshelf with real book spines, Import books by scanning spines or using AI, Earn badges and decorations for reading milestones, Log reads, reviews, and ratings, Set reading goals and track progress, Share your collection with friends

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cosy Case Premium | $4.99 | per month |
| Monthly Premium | $4.99 | per month |
| Cosy Case Premium Yearly | $19.99 | per year |
| yearly | $49.99 | per year |
| 300 Buttons | $2.99 | one-time |
| 700 Buttons | $5.99 | one-time |
| 1300 Buttons | $9.99 | one-time |
| Lifetime | $29.99 | one-time |


### OnlyBooks

[App page](https://appshunter.io/ios/app/onlybooks/id6763473613)

**Features:** macOS Compatibility, iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is Cosy Case free?

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

### Is OnlyBooks free?

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

### Do Cosy Case or OnlyBooks have ads?

Neither Cosy Case nor OnlyBooks shows ads.

### Which is updated more often, Cosy Case or OnlyBooks?

Cosy Case ships an update every 6 days, and OnlyBooks monthly. Most recently, Cosy Case was updated on November 8, 2026 and OnlyBooks on November 9, 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.*