Forget the world. Fall in love with this enchanting zen puzzler.

Set within an old abandoned house, the player restores order to the jumbled memories of the last occupant, and in doing so embarks on a haunting journey of self-discovery and reflection.

"An easy recommendation. 5/5" - Gamezebo
"One of the finest puzzle games. 4.5/5" - Modojo
"A gem of a puzzle game. 8/10" - Pocket Gamer
"An easy recommendation. 5/5" - Gamezebo
"Varied and lengthy. 4/5" - 148Apps
"An enjoyable puzzle game woven around a novel story. 4/5" - AppSpy

* Over 150 cunningly crafted puzzles!
* Perfectly balanced difficulty curve!
* HD and Retina support hand-painted art!
* Universal app with iCloud integration
* GameCenter Achievements and Leaderboards
* Soundtrack by composer Steven Cravis

Suitable for all ages, this is an experience that will stay with you long after you put it down.

What’s New

Version 1.10

Updated for iOS 13

Ratings and Reviews

4.8 out of 5
244 Ratings

244 Ratings

Bobbobson1234567 ,


This has got to be my favorite puzzle game I've played in a very long time. Great atmosphere and story to piece together. The puzzles slowly introduce new mechanics in manageable and easy to learn ways, one at a time, piling them on top of each other as the game progresses. By the last stages you'll have to use every bit of knowledge to complete some puzzles!

As the completionist I am I made it my goal to perfect every level and find all the secrets before moving onto the next stage and the game's hint and feedback system makes it a fun and challenging experience. Coins can be used to buy solutions to puzzles and to reveal the locations of secrets. The more secrets found, achievements earned and levels perfected, the more coins earned, so even though the game offers the ability to buy coins and solutions, I never felt like it was some sort of necessity. Plus an in depth online guide is easy to find on GameFAQs in case you happen to run out of coins.

Phil Midland ,

Fiendishly clever

I savored this game for almost a month. You can spend the better part of an evening solving some of the puzzles to perfect completion. If you don't have patience, then look elsewhere. The music background is relaxing but may lull you to sleep. There are hidden jewels and portals that lead to hidden puzzles. Some puzzles are solved quickly and teach you new objects and their behaviors. Other puzzles are very difficult to solve using the minimum number of moves. The solution is there, but if you need to spend some coins for hints or solutions, you can. No need to spend real money for IAPs. This is an excellent, well-crafted game.

CamTaylor5 ,

My Favorite Game

I just finished my fifth pay through of Memento. I love the Quell games, but this one is my favorite so far. The aesthetic of the game is gorgeous. Wonderful graphics. The layout of the levels and story keep you engaged and curious, and the soundtrack is one of the most relaxing and beautiful I’ve heard in any game. I love playing this right before bed. It is difficult enough to distract my mind, but not so much so that it is stressful (although there are a few levels that I seem to get stuck on every time!).

I am about to start Quell: Zen, and I can’t wait to try it!

App Privacy

The developer, Fallen Tree Games Ltd, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


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