# InkHeart vs CalibReader

The clearest difference is rating: InkHeart at 5.0 against CalibReader's 4.3. InkHeart also leads on iOS requirement (15.1 vs 26.2). CalibReader's advantage is chart position (#136 vs unranked) and ratings volume (6 vs 1). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. InkHeart sells 7 in-app purchases, starting at $19.99 per 7 days and CalibReader sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

InkHeart holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: CalibReader has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

InkHeart ships an update every 2 days, CalibReader every 3 days. The most recent releases landed on October 30, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | InkHeart | CalibReader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/inkheart/id6754616472/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/calibreader-epub-and-pdf-reader/id6777391511/reviews) |
| Number of ratings | 1 | **6** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#136** |
| Size | 69 MB | 49 MB |
| Requires iOS | **15.1** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Nicole Ge](https://appshunter.io/developer/1849267375) | [Gram 1](https://appshunter.io/developer/1895687118) |

## What reviewers say

### InkHeart

[App page](https://appshunter.io/ios/app/inkheart/id6754616472)

Explore a vast library of engaging stories across genres like romance, fantasy, and adventure. Dive into new worlds and discover your next favorite read with this digital book platform.

**Highlights:** Extensive story library, Multiple genres available, Romance stories, Fantasy stories, Adventure stories, Digital reading platform

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Membership | $19.99 | per 7 days |
| InkHeart Monthly Membership | $39.99 | per month |
| InkHeart Yearly Membership | $199.99 | per year |
| InkHeart 200 coins | $4.99 | one-time |
| InkHeart 450 Coins | $9.99 | one-time |
| InkHeart 1000 Coins | $19.99 | one-time |
| InkHeart 3000 Coins | $49.99 | one-time |


### CalibReader

[App page](https://appshunter.io/ios/app/calibreader-epub-and-pdf-reader/id6777391511)

**Currently charting:** #136 Top Free · Book (US App Store)

This app offers a reading experience for EPUB and PDF files, featuring dual-page spreads and realistic page curls. It integrates with your existing calibre library and supports various cloud storage options. Enjoy a customizable reading environment and seamless syncing across devices.

**Highlights:** Dual-page spread and page curl effect, Calibre library integration, Cloud storage support (iCloud, Dropbox, OneDrive), Cross-device reading position sync, Customizable themes and fonts, Built-in dictionary, PDF reader with two-page spreads

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Books Forever | $9.99 | one-time |


## Frequently asked questions

### Is InkHeart free?

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

### Is CalibReader free?

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

### Which has better reviews, InkHeart or CalibReader?

InkHeart is rated higher. InkHeart averages 5.0 out of 5 from 1 ratings, while CalibReader averages 4.3 from 6 ratings.

### Do InkHeart or CalibReader have ads?

Neither InkHeart nor CalibReader shows ads.

### Which is updated more often, InkHeart or CalibReader?

InkHeart ships an update every 2 days, and CalibReader every 3 days. Most recently, InkHeart was updated on October 30, 2026 and CalibReader on November 8, 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.*