Just breathe.
Without the bloat.
Sylph is a precise breath pacer with haptic feedback, 15+ scientifically grounded techniques, and a meditation timer that just runs. No sleep stories. No endless content feed.
Premium craft, not wellness bloat.
Every feature earned its place. Nothing more, nothing less.
Breath Pacer
A circle that breathes with you. Smooth, perfectly synced to the technique — feel it even with your eyes closed.
CoreHaptics under 50 ms
Haptic pulses for every inhale, hold, and exhale. On iPhone and on your wrist.
15+ breathing techniques
Box Breathing, 4-7-8, Wim Hof, Pranayama, Physiological Sigh — each with a short explanation and the science behind it.
Apple Watch Standalone
Breathe straight from your wrist. Complication, live timer, HealthKit sync — without your phone.
12 ambient sounds
Rain, ocean, forest, brown noise, fire and more. Mix two at once. Studio quality in just 12 MB.
Privacy first
No account. No tracking. No ads. Anonymous analytics. Your data stays on the device.
See Sylph in motion.
Five core moments — hover or tap to expand.
Science, not mysticism.
Each technique includes a short explanation and a source note. No pseudo-spirituality.
Your wrist. Your breath.
Sylph runs standalone on Apple Watch. Start any technique straight from your wrist — with haptic feedback, a complication for one-tap start, and HealthKit Mindful Minutes.
- Standalone — works without your iPhone nearby
- Full technique library synced via WatchConnectivity
- Complication on your watch face: one tap, instant session
- Haptic pulses straight on your wrist
Meditation, simplified.
A clean timer with a soft start and end gong. Optional interval bells. Pick a duration, set your sound, sit.
- Free duration from 1 to 90 minutes
- Soft start and end gongs
- Optional interval bells (every 5, 10, 15 min)
- Sessions keep running on standby — no abrupt stops
Pairs beautifully with ambient sounds — see next section.
12 sounds. Mix freely.
Studio-quality 1–5 min loops, optimized to 12 MB. Mix up to two sounds at once.
Per-sound volume control.
Your practice, tracked.
Streaks, session history and Apple Health Mindful Minutes — all on the device, nothing in the cloud.
- Session history with calendar view
- Streak counter with gentle reminders
- HealthKit sync (Mindful Minutes) — opt-in
- Data stays on your iPhone, optional iCloud sync
Pay once. Done.
Less than two months of Calm. No subscription, no renewal.
Pay once. Forever.
- All 16 breathing techniques
- Meditation timer + 12 sounds
- Apple Watch, history, Apple Health
- All future updates
No subscription. No renewal. No fine print.
Everything included
One purchase, the full feature set.
- All 16 breathing techniques
- All 12 ambient sounds, mix two at once
- Apple Watch standalone app + complication
- HealthKit Mindful Minutes
- Session history, streaks & reminders
- iCloud sync between iPhone and Watch
- Liquid Glass design for iOS 26
- No tracking, no ads, no account
For context: Calm $69.99/yr · Open $149.99/yr · Othership $199/yr.
Frequently asked
Do I need an account?
No. Sylph works without sign-up. Your data stays on the device.
How does Apple Watch work?
Sylph has a fully standalone Apple Watch app. Run any of the 16 techniques straight from your wrist — without your iPhone nearby. The Watch remembers your purchase permanently, even without your iPhone around.
What happens with my health data?
HealthKit is opt-in. Sylph writes Mindful Minutes to Apple Health and optionally reads heart rate and HRV. All data stays on your device.
How much does Sylph cost?
$9.99, one-time. No subscription, no renewal. Box Breathing is free; the purchase unlocks everything else permanently.
Is there a free trial?
No. You can use Box Breathing with haptics without buying, for as long as you like. Everything else comes with Sylph Pro.
New iPhone, pay again?
No. In the app, go to More → Restore Purchases, signed in with the same Apple ID.
How is Sylph different from Calm or Headspace?
Sylph focuses on breathwork. No sleep stories, no therapy modules, no endless content feed. And you pay once instead of subscribing.
Does it work on older iPhones?
Sylph runs on iOS 17 and up. Liquid Glass effects shine on iOS 26 — older versions get a graceful fallback.
Can I meditate offline?
Yes. All techniques, sounds and the timer work fully offline.
Which breathing techniques are included?
Box Breathing, 4-7-8, Wim Hof, Coherent Breathing, Physiological Sigh, Nadi Shodhana, Kapalabhati, Ujjayi, Triangle, 2-1, Slow Breathing and more — 15+ in total.
How loud are the ambient sounds?
You control volume per sound. Mix two at once — for example rain with birdsong.
Who builds Sylph?
Sylph is built by a solo developer. No VCs, no ad investors. The model is transparent: a one-time purchase, no tracking, no ads.