Teaching freediving? Free Lifetime for you, and a free first month for every student.
Give your students structured dry training between sessions with you: CO₂ and O₂ tables sized by a breath check, haptic pacing on iPhone and Apple Watch, and a record of every session.
Holdfast is for dry training, seated or lying down. It is never for use in or near the water, and it doesn’t replace your instruction or a buddy.
What you get
For you
A free Lifetime code: Holdfast Premium for good, with multi-week programs, the custom table builder and advanced analytics, so you can try everything you recommend. The code is yours alone and works once.
For each student
A free first month of Premium with a code we make for your students. They can cancel any time in their App Store settings, and the free app keeps working either way: breath check, CO₂ and O₂ tables, Apple Watch sessions and history.
How it works
- Email us with your name, your school or agency, and roughly how many students you teach a year.
- We reply by email with your Lifetime code and your students’ code for a free first month.
- Students redeem a code in the App Store app: tap your photo, then Redeem Gift Card or Code.
There’s no form and no sign-up. We use your email only to reply.
Or write to support@holdfast.app.
Never practice breath-holds in or near water alone — shallow-water blackout gives no warning. No hyperventilation. Stop immediately if you feel dizzy or unwell. Holdfast is a training aid, not a substitute for proper freediving instruction.
Want to see the app first? Holdfast on the App Store · FAQ