# ECHO - Time Loop Puzzle — Cooperate with your past self

> Cooperate with your past self (iPhone/iPad app by Lucas Hesseldieck.)

- Source: https://appshunter.io/ios/app/echo-time-loop-puzzle/id6791749935 (this page in markdown: same URL + `.md`)
- Developer: [Lucas Hesseldieck](https://appshunter.io/developer/6788079537)
- Category: Games, Board, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 3 MB
- Languages: German (Germany), American English, French (France), Italian, Dutch, Polish, Czech
- Released: 2026-08-06
- Data updated: 2026-08-22
- User reviews in markdown: https://appshunter.io/ios/app/echo-time-loop-puzzle/id6791749935/reviews.md

## What is ECHO?

Your echoes are your teammates.

ECHO is a time-loop puzzle: every run is recorded, and when you press ECHO, your past self replays it - step by step, loop after loop. Hold plates for each other, open doors across time, and thread paths no single runner could ever take.

EASY TO LEARN, DEEP TO MASTER
- 100 campaign levels across ten decades, from gentle first steps to choreographed finales
- Mechanics that weave together: chained doors, counter-doors, double doors, fragile floors, beat walls, paradox boards and mirror echoes that replay your run backwards
- Handcrafted signature levels where every single step must be planned

FOUR WAYS TO PLAY
- Campaign: 100 levels with a carefully tuned difficulty curve
- Daily puzzle: one fresh board every day - keep your streak alive
- Zen: endless generated puzzles in six difficulties
- Time challenge: how many boards can you solve in one run against the clock?

MADE WITH CARE
- Completely offline: no account, no ads, no tracking, no data collection
- Music is synthesized live on your device - no two sessions sound the same
- Home-screen widget that grows with your streak - and hides a secret level
- Game Center leaderboards and achievements
- Available in 7 languages

ECHO is free and complete from the first minute. The only purchases are voluntary tips for the developer - they unlock nothing.

Your past self is waiting.


## Version history (last 4 releases)

### 1.0.3 — 2026-08-14

New in 1.0.3: Tapping the widget now jumps straight into the daily puzzle. In the evening, ECHO can warn you when your streak is at risk. Also: notifications in your chosen app language, Reduce Motion support, better text scaling, and many small stability and accessibility improvements.

### 1.0.2 — 2026-08-11

New in 1.0.2: After your tenth solved puzzle, ECHO says thanks with a small one-time note - the game stays free and ad-free thanks to voluntary tips. Also new in Settings: "More from earl's studio" with our other games.

### 1.0.1 — 2026-08-07

Share your daily solve as a spoiler-free grid: one row per loop, so friends can compare how they paced their echoes - without giving the puzzle away.

ECHO is now also on the App Store in French, Italian, Dutch, Polish and Czech.

### 1.0 — 2026-08-06

No release notes.

## More apps by Lucas Hesseldieck

- [Odd One](https://appshunter.io/ios/app/odd-one/id6788079535)
- [Blink Grid - Reflex](https://appshunter.io/ios/app/blink-grid-reflex/id6795242744)

All apps by Lucas Hesseldieck: https://appshunter.io/developer/6788079537

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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 2026-08-22.*