# Tago Write vs OtoOi Reader

The clearest difference is in-app purchases: Tago Write at none against OtoOi Reader's 2. OtoOi Reader's advantage is update cadence (every 3 days vs every 9 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OtoOi Reader sells 2 in-app purchases, starting at $2.99 per month. Tago Write asks for nothing beyond the download.

Tago Write ships an update every 9 days, OtoOi Reader every 3 days. Both last shipped on November 6, 2026.

## The numbers

| Metric | Tago Write | OtoOi Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 3 days** |
| Size | 125 MB | 29 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Chanwoo Song](https://appshunter.io/developer/6792458009) | [Yutaka Imai](https://appshunter.io/developer/6819526124) |

## What reviewers say

### Tago Write

[App page](https://appshunter.io/ios/app/tago-write-korean-writing/id6792668938)

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

**In-app purchases:** none


### OtoOi Reader

[App page](https://appshunter.io/ios/app/otooi-reader/id6819526122)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly plan | $2.99 | per month |
| Annual plan | $24.99 | per year |


## Frequently asked questions

### Is Tago Write free?

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

### Is OtoOi Reader free?

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

### Do Tago Write or OtoOi Reader have ads?

Neither Tago Write nor OtoOi Reader shows ads.

### Which is updated more often, Tago Write or OtoOi Reader?

Tago Write ships an update every 9 days, and OtoOi Reader every 3 days. Most recently, Tago Write was updated on November 6, 2026 and OtoOi Reader on November 6, 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.*