# 4tr — Four photos become one song

> Four photos become one song (iPhone/iPad app by Ryohei Ameda.)

- Source: https://appshunter.io/ios/app/4tr/id6801756918 (this page in markdown: same URL + `.md`)
- Developer: [Ryohei Ameda](https://appshunter.io/developer/6796744923)
- Category: Music
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 33 MB
- Languages: American English
- Released: 2026-11-06
- Data updated: 2026-11-07

## What is 4tr?

Four photos become one song.
A view from your travels, or an everyday moment. The photos you choose become a song about a minute long, made only for you.
Turn your song into a video and share it on social media.

■ How it works
Your first photo sets the arrangement, the tempo, the backing instruments, and how the sound echoes.
Each photo you add, the second and then the third, layers in new sounds.
With four photos, your song is complete.

■ What you can do
・Export your song as a video or an audio file.
・Two video styles: "four in one" puts all four photos in a single frame, and "one by one" shows them one after another. With "one by one", you can add a short line of English text to each photo.
・Your songs are saved to a list automatically, and you can play them back to back. Gather the songs you mark GOOD, and you have your own best-of album.
・Want only quiet songs? Turn on QUIET mode. 4tr will make only solo piano pieces or quiet songs without drums.

■ About 4tr
4tr was made with old MTRs (multitrack recorders) in mind: machines that layer sound on four tracks to make one song.
Old recorders didn't let you re-record freely, over and over. In 4tr, too, you can swap a photo only a set number of times. It's a deliberate choice, so that you pick the one photo that holds this moment.

Terms of Use: https://sea-song-label.com/apps/4tr/terms
Privacy Policy: https://sea-song-label.com/apps/4tr/privacy
License Agreement (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Is 4tr safe?

Not enough ratings yet to assess 4tr.

## Is 4tr legit?

4tr has limited verification signals. The AppsHunter Legitimacy Score for 4tr is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-11-06

No release notes.

## Related topics

[ameda](https://appshunter.io/ios/topics/ameda)

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*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 2026-11-07.*