iOS · TestFlight beta · May 2026
One vow.
Day by day.
An iOS app for intentional discipline. Challenges, ascets, calendar events. No account. No subscription. Just you and your word.
Practices · Discipline · Stake
An iOS app for intentional discipline. Challenges, ascets, calendar events. No account. No subscription. Just you and your word.
Practices · Discipline · Stake
Vow is built around a single idea: when you say you'll do something for thirty days, the app is there for those thirty days. No streaks to brag about. No badges. No noise. Just the window, the breath, the day.
You take a vow — a habit challenge, an askesis with a stake, or a calendar event like Ramadan, Lent, or Vesak. Each day, you mark it within a window. At the end, you receive a certificate. That's the whole loop.
No marketing copy. These are lines the app uses with every paying user.
You're not tracking habits.
You're keeping your word.
Share card · completion
Done is better than perfect in your head.
Daily tip · home screen
Askesis only. No distractions. What matters — action.
Askesis mode · entry
Replace a complaint with an action or a fact. If neither — stay silent.
Event · Complaint fast · 10-day social askesis
Payment confirms your intention. No refunds.
Event askesis · checkout
Miss the window — the day doesn't count.
Event askesis · rules
A simple daily habit — read fifteen minutes, walk eight thousand steps, no alcohol. Three difficulty tiers. No money at risk, just a streak you can break and rebuild.
A deeper commitment with a stake of one, twenty-five, forty-five, or one hundred dollars. The stake is the weight of your intention, not a deposit. Complete the period — receipt of completion. Miss a day — the stake is forfeited.
A practice anchored to a calendar moment — Ramadan, Lent, Vesak, Solstice, Advent, Dry January — or to a defined social discipline like a complaint fast. Fixed dates. Same stake rules. Same strict window.
Every day has a check-in window. You can mark inside it. Outside it, the day doesn't count. The diary does not replace the check-in.
The app shows today's countdown. You can enter Askesis mode anytime.
Or you don't. First and last, you are honest with yourself. The app does not verify on your behalf — it holds the window and counts the days.
One tap, one haptic, one day added to the dot grid. A gold ring at every seventh day. No screenshots, no proof — the contract is with yourself.
For a free challenge — broken streak, no consequence beyond honesty. For an askesis with stake — the day is missed and the askesis is not completed. No retroactive marks. No exceptions.
Events have their own windows — Ramadan after iftar, Vesak at dawn, Lent in the morning. Each event states its window before you commit.
No feed. Notifications only when they matter: window opens, window closing. No reminders for the sake of it. Just the practice, the window, and today.
One screen. One discipline. Everything else stays outside.
The check-in window. Breath cadence. The Mark button. That's it.
One askesis. One challenge. One planned event. No more.
Cultural anchors. Fixed dates. Same rules for everyone in the room.
Every challenge, askesis, event, and practice is written by one hand. No automatic user-generated content. The catalog is the product. There is a "Suggest an event" form inside the app — we read every suggestion. Accepted ideas join the catalog no more than once per quarter, at the team's discretion.
Written by a practicing lawyer and author of a non-fiction book on legal architecture.
Catalog formation rules — public version (PDF)
Each event in Vow has its own emblem, color palette, breathing practice, marking window, and final scene. The visual respects the tradition — no stock religious imagery, no clichés.
30 days. Marking after iftar.
47 days. Morning window. Phased progression.
7 days of non-attachment. Dawn window.
25 days, 4 weeks. Evening candle.
Open the app and start. We don't ask for your email, phone, or name. Your data lives on your device, not on our server. On entry we ask only for age — this opens the right catalog for you: under 13, the app gently declines; 13–17, a free version without askesis and payments; 18+, the full catalog.
Vow is for people tired of paying every month. Pay for a vow when you take it. That's it. Cancel nothing afterward.
The app does not watch you in any form. Not your data, not whether you actually keep the conditions of your askesis in real life. No Mixpanel, Amplitude, Firebase Analytics or any other SDKs. The app trusts you — because it trusts your honesty with yourself.
No badges, no leaderboards, no competition with others. A streak belongs to you, not to an audience. A vow is a vow, not a game. We respect the seriousness of the practice.
Advertising — never. We do not sell your attention to a third party and we do not insert banners. Partnership events are possible: a joint askesis with a brand or cultural institution, with its own visual world and the same rules of window and completion. That is part of the catalog, not an ad.
Vow is on TestFlight. We're looking for 300 first users across four languages — roughly 75 per language. Enough to learn what works and what we have not yet refined. 90 seconds to apply. 7 days of trying. One short feedback form after.
Apply to the betaWhen you start an ascet, you choose a stake of one, twenty-five, forty-five, or one hundred dollars. This is not a deposit — it doesn't come back when you finish. It's the weight you put on your intention, paid up front. The price of a serious vow.
Challenges have a marking window each day. If you miss it, you can either skip the day (free in the easy tier, paid in higher tiers) or end the challenge early. Ascets are stricter — missing a day ends the ascet without success. This is the design.
Yes. Paired ascets let two people commit to the same vow together. You share a code, both walk the same days, and exchange a small haptic ping when you're each present. No shared score, no chat — just synchronicity.
Vow has a separate branch for ages 13–17 with simplified, free habit challenges and event versions. No ascets, no stakes, no paid skips. Anyone under 13 receives a gentle decline at sign-in.
Not in 2026. The product is built specifically for iOS — Live Activities, Widgets, Dynamic Island. Android is a possible future, not a near plan.