# Aqarify vs EstBook

The clearest difference is in-app purchases: Aqarify at none against EstBook's 2. Aqarify also leads on update cadence (every 2 weeks vs monthly) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. EstBook sells 2 in-app purchases, starting at $2.49 per month. Aqarify asks for nothing beyond the download.

Aqarify ships an update every 2 weeks, EstBook monthly. The most recent releases landed on September 28, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Aqarify | EstBook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Size | 15 MB | 62 MB |
| Requires iOS | **16** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mohamed Elsherbiny](https://appshunter.io/developer/1712429142) | [TARS BOOKS APPS LLC](https://appshunter.io/developer/6794718895) |

## What reviewers say

### Aqarify

[App page](https://appshunter.io/ios/app/aqarify/id6752714540)

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

**In-app purchases:** none


### EstBook

[App page](https://appshunter.io/ios/app/estbook/id6794718893)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EstBook Premium Monthly | $2.49 | per month |
| EstBook Premium Annual | $24.99 | per year |


## Frequently asked questions

### Is Aqarify free?

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

### Is EstBook free?

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

### Do Aqarify or EstBook have ads?

Neither Aqarify nor EstBook shows ads.

### Which is updated more often, Aqarify or EstBook?

Aqarify ships an update every 2 weeks, and EstBook monthly. Most recently, Aqarify was updated on September 28, 2026 and EstBook on October 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*