# iLib vs Opa! Bilingual Book Reader

The clearest difference is in-app purchases: iLib at none against Opa! Bilingual Book Reader's 2. iLib also leads on device support (4 vs 1) and iOS requirement (14.0 vs 17.0). Opa! Bilingual Book Reader's advantage is update cadence (every 5 days vs fortnightly). On price and ads there is nothing between them.

Both are free to download. Opa! Bilingual Book Reader sells 2 in-app purchases, starting at $4.99 per month. iLib asks for nothing beyond the download.

iLib ships an update fortnightly, Opa! Bilingual Book Reader every 5 days. The most recent releases landed on October 14, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | iLib | Opa! Bilingual Book Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Size | 60 MB | 3 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Qianye (hubei Province) Education Technology Co., Ltd](https://appshunter.io/developer/6785369295) | [Momentarium LLC](https://appshunter.io/developer/1671025250) |

## What reviewers say

### iLib

[App page](https://appshunter.io/ios/app/ilib-read-listen-learn/id6785369293)

**Features:** Vision Pro support

**In-app purchases:** none


### Opa! Bilingual Book Reader

[App page](https://appshunter.io/ios/app/opa-bilingual-book-reader/id6817152105)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Month | $4.99 | per month |
| Year | $14.99 | per year |


## Frequently asked questions

### Is iLib free?

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

### Is Opa! Bilingual Book Reader free?

Opa! Bilingual Book Reader is free to download, with in-app purchases available.

### Do iLib or Opa! Bilingual Book Reader have ads?

Neither iLib nor Opa! Bilingual Book Reader shows ads.

### Which is updated more often, iLib or Opa! Bilingual Book Reader?

iLib ships an update fortnightly, and Opa! Bilingual Book Reader every 5 days. Most recently, iLib was updated on October 14, 2026 and Opa! Bilingual Book Reader on October 27, 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.*