# RidoBooks vs Parallèle Reader

The clearest difference is ads: Parallèle Reader at none against RidoBooks's shown. RidoBooks's advantage is update cadence (monthly vs every 3 months) and iOS requirement (15.0 vs 18.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. RidoBooks sells 12 in-app purchases, starting at $3.99 per 7 days and Parallèle Reader sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

RidoBooks ships an update monthly, Parallèle Reader every 3 months. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | RidoBooks | Parallèle Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 3 months |
| Size | 78 MB | 14 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rido Lang Sp Z O.O.](https://appshunter.io/developer/1809375471) | [Temirlan Abdyldaev](https://appshunter.io/developer/6777372999) |

## What reviewers say

### RidoBooks

[App page](https://appshunter.io/ios/app/ridobooks/id6744822677)

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| RidoBooks Free Trial | $4.99 | per 7 days |
| Monthly | $7.99 | per month |
| Monthly Pro | $9.99 | per month |
| Premium Monthly | $9.99 | per month |
| Quarterly | $14.99 | per 3 months |
| Quarterly | $17.99 | per 3 months |
| Semiannual | $17.99 | per 6 months |
| Semiannual Pro | $24.99 | per 6 months |
| Yearly | $29.99 | per year |
| Premium Yearly | $29.99 | per year |
| Yearly Pro | $39.99 | per year |


### Parallèle Reader

[App page](https://appshunter.io/ios/app/parallele-reader/id6777372817)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Parallèle Reader | $9.99 | one-time |


## Frequently asked questions

### Is RidoBooks free?

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

### Is Parallèle Reader free?

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

### Do RidoBooks or Parallèle Reader have ads?

RidoBooks shows ads; Parallèle Reader does not.

### Which is updated more often, RidoBooks or Parallèle Reader?

RidoBooks ships an update monthly, and Parallèle Reader every 3 months. Most recently, RidoBooks was updated on October 9, 2026 and Parallèle Reader on October 4, 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.*