o.

Matthew Williams Health & Fitness iPhoneiPadiPod touch

o. is a free Health & Fitness app for iPhone and iPad by Matthew Williams. Requires iOS 16.0. Updated April 1, 2026.

Price: Free; on the App Store
Size: 90 MB; Age 4+
Updated: Apr 1; 2026 · v1.0

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About o.

An exploration of how a phone can connect you with your body. Best experienced with headphones.

App privacy

The developer, Matthew Williams, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

App details

o. is a free Health & Fitness app for iPhone, iPad and iPod touch, developed by Matthew Williams. It requires iOS 16.0 or later and is 90 MB to download. It was first released on April 1, 2026 and last updated on April 1, 2026.

Category: Health & Fitness
Price: Free
Version: 1.0
Size: 90 MB
Requires: iOS 16.0 or later
Compatibility: iPhone, iPad, iPod touch
Languages: English
Age rating: 4+
Released: April 1, 2026
Last updated: April 1, 2026
Developer: Matthew Williams

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Listing score

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Alternatives to o.

Looking for apps like o.? Here are 4 similar apps on the App Store. The highest rated is Peloton: Fitness & Workouts (4.9/5), and all 4 are free to download.

o. vs. alternatives
App	Rating	Price	Last updated	Compare
o.	–	Free	April 1, 2026
AntiSick: Motion Sickness	–	Free	Sep 2, 2026	Compare
Ada - your health portal	4.8 / 5 (11,334)	Free	Sep 8, 2026	Compare
Bearable - Symptom Tracker	4.8 / 5 (6,543)	Free	Oct 22, 2026	Compare
Peloton: Fitness & Workouts	4.9 / 5 (818,548)	Free	Oct 20, 2026	Compare

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