# BUKU vs EYS

The clearest difference is in-app purchases: EYS at none against BUKU's 1. BUKU's advantage is update cadence (weekly vs every 6 weeks) and iOS requirement (13.4 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. BUKU sells 1 in-app purchase, starting at $33.99 per month. EYS asks for nothing beyond the download.

BUKU ships an update weekly, EYS every 6 weeks. The most recent releases landed on September 21, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | BUKU | EYS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.9 (10 ratings)](https://appshunter.io/ios/app/buku/id1098689247/reviews)** | — |
| Number of ratings | **10** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 26 MB |
| Requires iOS | **13.4** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Buku](https://appshunter.io/developer/1098689246) | [VEERKRUPA INFOTECHS PRIVATE LIMITED](https://appshunter.io/developer/1436880193) |

## What reviewers say

### BUKU

[App page](https://appshunter.io/ios/app/buku/id1098689247)

Access digital textbooks and study materials on any device. Quickly find information with advanced search, take notes, and mark important passages. This learning environment offers enriched content like practice questions and videos to make studying more effective and enjoyable.

**Highlights:** Digital textbook access, Advanced search functionality, Note-taking and text marking, Cross-platform synchronization, Enriched content (videos, practice questions), Manage and share book lists

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BUKU | $33.99 | per month |


### EYS

[App page](https://appshunter.io/ios/app/eys/id6740136808)

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

**In-app purchases:** none


## Frequently asked questions

### Is BUKU free?

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

### Is EYS free?

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

### Do BUKU or EYS have ads?

Neither BUKU nor EYS shows ads.

### Which is updated more often, BUKU or EYS?

BUKU ships an update weekly, and EYS every 6 weeks. Most recently, BUKU was updated on September 21, 2026 and EYS on October 2, 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.*