# Lux vs EstBook

The clearest difference is in-app purchases: Lux at none against EstBook's 2. Lux also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.4). On price, update cadence and ads there is nothing between them.

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

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Lux | EstBook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 97 MB | 62 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Yuriy Povarov](https://appshunter.io/developer/1463180982) | [TARS BOOKS APPS LLC](https://appshunter.io/developer/6794718895) |

## What reviewers say

### Lux

[App page](https://appshunter.io/ios/app/lux/id6449972658)

**Features:** macOS Compatibility

**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 Lux free?

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

### Is EstBook free?

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

### Do Lux or EstBook have ads?

Neither Lux nor EstBook shows ads.

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

Lux ships an update monthly, and EstBook monthly. Most recently, Lux was updated on October 19, 2026 and EstBook on October 18, 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.*