# ONBU vs CORO Edu

ONBU and CORO Edu are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ONBU ships an update fortnightly, CORO Edu every 9 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | ONBU | CORO Edu |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Size | 105 MB | 118 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DOTB SOFTWARE COMPANY LIMITED](https://appshunter.io/developer/1475488444) | [CORO VIETNAM COMPANY LIMITED](https://appshunter.io/developer/1866826489) |

## What reviewers say

### ONBU

[App page](https://appshunter.io/ios/app/onbu/id6502806120)

**Features:** macOS Compatibility

**In-app purchases:** none


### CORO Edu

[App page](https://appshunter.io/ios/app/coro-edu/id6752333947)

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

**In-app purchases:** none


## Frequently asked questions

### Is ONBU free?

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

### Is CORO Edu free?

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

### Do ONBU or CORO Edu have ads?

Neither ONBU nor CORO Edu shows ads.

### Which is updated more often, ONBU or CORO Edu?

ONBU ships an update fortnightly, and CORO Edu every 9 days. Most recently, ONBU was updated on October 25, 2026 and CORO Edu on October 25, 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.*