# TTM Ｏfficial APP vs onIMT

The clearest difference is iOS requirement: TTM Ｏfficial APP at 7.0 against onIMT's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

TTM Ｏfficial APP ships an update every 8 months, onIMT every 5 months. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | TTM Ｏfficial APP | onIMT |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 months** |
| Monetization | Free | — |
| Size | 74 MB | 31 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Tokyo Metropolitan Foundation for History and Culture](https://appshunter.io/developer/938283952) | [THD Inc.](https://appshunter.io/developer/1198881566) |

## What reviewers say

### TTM Ｏfficial APP

[App page](https://appshunter.io/ios/app/ttm-fficial-app/id938283953)

Explore the historic Tokyo Metropolitan Teien Art Museum with this app. It offers guided tours of each room, highlighting architectural details and points of interest through text, pictures, and audio in English and Japanese. Enhance your appreciation of this cultural asset.

**Highlights:** Room-by-room guided tours, Architectural and design explanations, Picture and audio guidance, English and Japanese language support, Historical building restoration details

**Features:** macOS Compatibility

**In-app purchases:** none


### onIMT

[App page](https://appshunter.io/ios/app/onimt/id1409520613)

**In-app purchases:** none


## Frequently asked questions

### Is TTM Ｏfficial APP free?

TTM Ｏfficial APP is free to download, with no in-app purchases.

### Is onIMT free?

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

### Do TTM Ｏfficial APP or onIMT have ads?

Neither TTM Ｏfficial APP nor onIMT shows ads.

### Which is updated more often, TTM Ｏfficial APP or onIMT?

TTM Ｏfficial APP ships an update every 8 months, and onIMT every 5 months. Most recently, TTM Ｏfficial APP was updated on October 24, 2026 and onIMT on October 12, 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.*