# Tachiichi: Formations to Video — Your formations, with music

> Choreography formation tool for dance, exporting MP4 videos and PDFs. (iPhone/iPad app by Yuya Tanaka.)

- Source: https://appshunter.io/ios/app/tachiichi-formations-to-video/id6795413042 (this page in markdown: same URL + `.md`)
- Developer: [Yuya Tanaka](https://appshunter.io/developer/1895106450)
- Category: Productivity, Music
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 6 MB
- Languages: American English, Japanese
- Released: 2026-07-31
- Data updated: 2026-10-14
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/tachiichi-formations-to-video/id6795413042/reviews.md

## What is Tachiichi?

Lay out where each dancer stands, then export the whole routine as an MP4 with your own music — straight from your device.

■ A VIDEO WITH MUSIC
Arrange positions slide by slide; the movement between slides is filled in automatically. Play it back to check the transitions, then export an MP4 with your imported audio track. Hand the video to your team instead of a screen recording. Audio comes from your own DRM-free files — protected tracks from streaming services cannot be imported, since they cannot be muxed into a video.

■ ARRANGE WITH YOUR FINGER
Set the stage aspect ratio from presets — gym, stage, outdoor — or your own numbers. Add dancers, drag them into place, and align them with grid snapping, even spacing, and left-right mirroring. Enter a start time for each slide to decide exactly where in the song each formation lands; Tachiichi works out the hold time for you.

■ PAPER, TOO
Export every slide as a PDF, four formations per page, in the order they appear in your project — ready to hand out before rehearsal.

■ WORKS WITHOUT A SIGNAL
Your project and audio stay on this device. No account, no ads. A basement studio or an outdoor field does not change what you can do.

■ HOW SAVING WORKS
Saves are written as versions; if a save is interrupted, the app reopens the last complete version. Audio files are checked against a stored hash, and if one becomes unreadable you are told, not silently exported as silence. Deleted pieces go to the Trash until you empty it. A single-file backup, audio included, can be made and restored later.

■ IPHONE AND IPAD
Edit in portrait or landscape on iPad, and rotating the device does not lose what you were editing.

■ HOW THIS IS DIFFERENT
Among apps for planning dance formations, exporting a finished video with music is uncommon — most stop at screen recordings, and the few that offer it place it behind a subscription. Tachiichi's video export is a one-time purchase, not a subscription.

■ PRICING
Free: 1 piece, 12 dancers, 6 slides — including MP4 and PDF export, with a small watermark in the corner of exported videos.
Tachiichi Pro (one-time purchase, not a subscription) removes the piece and slide limits, raises the dancer limit to 100, and removes the export watermark.

■ WHAT THIS APP DOES NOT DO
・Protected streaming tracks cannot be imported
・Movement between slides is linear; entrances and exits from off-stage are not modeled
・Undo for slides and dancers lasts only while that editor stays open
・Share exported videos within the rights you hold to the audio — this app does not grant any music license

## Key features

- Create dance formations with music
- Export as MP4 video
- Export as A4 PDF
- Arrange dancer positions with drag and drop
- Automatic movement interpolation
- Offline editing and playback
- No account registration required

## Is Tachiichi safe?

Not enough ratings yet to assess Tachiichi.

## Is Tachiichi legit?

Tachiichi: Formations to Video appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Tachiichi is 65 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/tachiichi-formations-to-video/id6795413042/reviews.md

### 5/5 — 神アプリに進化

*2026-10-01*

最初から再生されていたのが選択した場所から再生される様になってほんとに最高！操作もシンプルで分かりやすいし、レビューしてからの対応も鬼早だし大好きなアプリになりました。

**Developer response:** ご不便をおかけしました。ご指摘ありがとうございます。
バージョン1.6.1で、選んでいる隊形（フォーメーション）の位置から再生が始まるようにしました。止めてもう一度再生しても、同じ隊形から始まります。
最初から通しで確認したいときは、先頭の隊形を選んでから再生してください。

### 1/5 — 最初から再生される

*2026-09-25*

課金もしてやったけど何やっても最初から再生されてウザイ。全体を確認するにはいいけどいちいち最初に戻されるのが嫌だ。指定した場所(フォーメーション)から再生できたら最高のアプリなのになと思う。

## Frequently asked questions about Tachiichi

### What is タチイチ?

タチイチ is a productivity app designed for creating and exporting dance formations. It allows users to arrange dancer positions, interpolate movements, and export the choreography as MP4 videos or PDFs.

### How does タチイチ handle music?

You can import your own DRM-free audio files. The app automatically interpolates movement between set positions to sync with the music. Protected songs from streaming services cannot be imported.

### Can I use タチイチ offline?

Yes, タチイチ works entirely offline. All作品 (works) and audio files are handled on your device, allowing editing and confirmation even without an internet connection.

### What are the limitations of the free version of タチイチ?

The free version allows for 1 work, 12 dancers, and 6 slides per work. Exports (MP4 and PDF) in the free version include a small watermark of the app name.

### How much does タチイチ Pro cost?

タチイチ Pro is a one-time purchase of ¥800. It is not a subscription. This unlocks unlimited works, dancers (up to 100), and slides, and removes the export watermark.

### Does タチイチ have ads?

No, タチイチ does not have advertisements. The free version includes a watermark on exports, but there are no in-app ads.

### What devices does タチイチ support?

タチイチ is compatible with both iPhone and iPad. On iPad, you can edit in landscape mode, and the editing state is preserved when rotating the device.

### How often is タチイチ updated?

The latest version is 1.2.1, last updated on 2026-08-22. Updates are released periodically to improve functionality and add new features.

## Version history (last 5 releases)

### 1.7.2 — 2026-10-13

• You can now send feedback or report a problem from Settings (a form opens in your browser).

### 1.7.1 — 2026-10-11

• The small stage on the "How many dancers?" screen now shows the same wood floor and pieces as the editor.
• Fixed an issue on iPad in portrait where two copies of the editor's first-time guide appeared at once and the upper close button did not close it.

### 1.7.0 — 2026-10-10

• The editor has been redesigned. The floor now looks like a stage, with distance marks from center, the audience, stage right and stage left, and each dancer is a piece with their initial.
• Arrows show how everyone moves from the previous formation, and switching formations slides everyone to their new places.
• See when each formation lands next to the song's waveform, and drag to adjust it. While playing, tap the "2 lands here" style button to make the next formation land at that moment.
• Choose how exported videos and PDFs look (Wood floor, Black stage or White; Movement lines; Formation number and time). PDFs show when each formation lands, how long each move takes, and spike readings for each dancer.

### 1.6.2 — 2026-10-02

• Fixed an issue where the pages of the "PDF of every slide" export were upside down.

### 1.6.1 — 2026-10-01

• Playback now starts from the formation you have selected. Stop and play again, and it starts from that same formation (to watch from the beginning, select the first formation, then play).

## Apps similar to Tachiichi

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Castograph: Dance Formation](https://appshunter.io/ios/app/castograph-dance-formation/id6762937044) | — | Free | Productivity |
| [Formation App](https://appshunter.io/ios/app/formation-app/id6773152511) | — | Free | Productivity |
| [mo-sim](https://appshunter.io/ios/app/mo-sim/id1450170370) | 3.0 (4) | Free | Productivity |
| [mubo - dance formation editor](https://appshunter.io/ios/app/mubo-dance-formation-editor/id6753949227) | — | Free | Productivity |
| [DanceNote](https://appshunter.io/ios/app/dancenote/id1532627155) | 5.0 (2) | Free | Productivity |
| [Picolin](https://appshunter.io/ios/app/picolin/id6762989496) | — | Free | Productivity |

## More apps by Yuya Tanaka

- [Dovio](https://appshunter.io/ios/app/dovio/id6762978468)
- [Foghorn: ADHD Routine Alarms](https://appshunter.io/ios/app/foghorn-adhd-routine-alarms/id6788937334)
- [Inlet: AI Anxiety Journal](https://appshunter.io/ios/app/inlet-ai-anxiety-journal/id6789019421)
- [Shiodoki: Japan Tide Charts](https://appshunter.io/ios/app/shiodoki-japan-tide-charts/id6789547788)
- [Dencho: Tape Calculator](https://appshunter.io/ios/app/dencho-tape-calculator/id6789548710)
- [TenthFrame: Bowling Scores](https://appshunter.io/ios/app/tenthframe-bowling-scores/id6789774323)

All apps by Yuya Tanaka: https://appshunter.io/developer/1895106450

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-14.*