# Sutra vs CaliMob

The clearest difference is in-app purchases: CaliMob at none against Sutra's 4. CaliMob also leads on update cadence (every 4 days vs every 8 days) and iOS requirement (15.6 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Sutra sells 4 one-off in-app purchases. CaliMob asks for nothing beyond the download.

Sutra ships an update every 8 days, CaliMob every 4 days. Both last shipped on November 10, 2026.

## The numbers

| Metric | Sutra | CaliMob |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (18 ratings)](https://appshunter.io/ios/app/sutra-ebook-and-comic-reader/id6780096864/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 73.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 113 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Koustav Dasgupta](https://appshunter.io/developer/6772577121) | [Frada SRL](https://appshunter.io/developer/6785799773) |

## What reviewers say

### Sutra

[App page](https://appshunter.io/ios/app/sutra-ebook-and-comic-reader/id6780096864)

Organize and read all your eBooks and comics in one beautiful, calm reader. Connect to self-hosted libraries, explore online catalogs, and customize your reading experience with various display options. Enjoy seamless progress syncing across devices.

**Highlights:** Unified reader for EPUB, PDF, CBZ, MOBI, comics, and manga, Connect to Kavita, Komga, Calibre, and OPDS servers, Customizable reading experience (fonts, themes, layout), Organized library with Series and Collection views, Progress and finished-book sync across devices, Offline reading support for comics

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $1.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |
| Sutra Pro | $6.99 | one-time |


### CaliMob

[App page](https://appshunter.io/ios/app/calimob-calibre-ebook-reader/id6785799771)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sutra free?

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

### Is CaliMob free?

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

### Do Sutra or CaliMob have ads?

Neither Sutra nor CaliMob shows ads.

### Which is updated more often, Sutra or CaliMob?

Sutra ships an update every 8 days, and CaliMob every 4 days. Most recently, Sutra was updated on November 10, 2026 and CaliMob on November 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.*