Holdfast press kit

Everything you need to write about Holdfast. You’re welcome to use these assets in coverage of the app.

Fact sheet

Short description (50 words)

Holdfast is a breath-hold trainer for iPhone and Apple Watch. A quick breath check sizes CO₂ and O₂ tables to you, and haptic cues pace every inhale, hold and exhale, so you can train with your eyes closed. It works offline, needs no account, and is for dry training only.

Long description (150 words)

Holdfast is a breath-hold trainer for freedivers, spearfishers, surfers and anyone who practices breath-holds, on iPhone and Apple Watch. It is built around the two classic apnea tables: CO₂ tables, where rest shrinks while the hold stays the same, and O₂ tables, where the hold grows while rest stays the same. A short, relaxed breath check sizes both tables to the user, so nobody starts from a guess. Every phase has its own haptic cue, so a whole session can run on the wrist with the screen off and eyes closed, while Apple Watch reads heart rate live. Progress tracks personal bests, streaks and a six-week max-hold chart. The core trainer is free; Premium adds multi-week programs, a custom table builder and advanced analytics. Holdfast works offline, needs no account and has no ads or trackers, and it speaks English and Spanish. It is for dry training on land only.

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Promo video

15 seconds, 1080 × 1920, no audio. Download the video (MP4, 4.8 MB)

Screenshots

Current screenshots of the iPhone and Apple Watch apps. Need a different size? Ask us.

Contact

For interviews, review access or anything else, email support@holdfast.app.