Heart Sit vs Zen
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Heart Sit
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Did it actually work? The question every meditator secretly asks. Heart Sit answers it. Live heart rate from your AirPods Pro 3 or Apple Watch ā captured every second, plotted around your timer, analyzed across weeks. Stop guessing. Start observing. LIVE HEART RATE Choose your sensor: AirPods Pro 3 (in-ear optical), Apple Watch, or Auto. Heart Sit shows which device is providing the reading in real time. No chest strap. No additional hardware. THE OBSERVED INSIGHT Every session ends with a one-line answer: "Your heart rate dropped 8 BPM." Or "Heart rate stayed steady ā calm baseline." Compare this week to your 90-day baseline in Trends. Watch the line move. THE SETTLE SCORE Proprietary metric that measures how long it took your heart rate to reach its session minimum. Lower means you settled faster. Track it across weeks. Brag about it. APPLE WATCH AS REMOTE Open Heart Sit on your Watch ā it becomes a control surface. Pause, resume, stop from your wrist. The Watch app stays alive for the full session via Extended Runtime Sessions. Your phone can sit screen-down across the room. PRACTICE TYPES Open, Zazen, Vipassana, Breath Focus. Each comes with appropriate defaults. Tag your sessions and see which practice settles you fastest. CONTEXT TAGS + MOOD Tag morning, evening, post-workout, stressed, calm. Capture your mood after each session. Heart Sit will show you which contexts produce your best practice. OVERTIME MODE The bell rings when your timer ends ā but you don't have to stop. Continue as long as you want. Heart Sit counts the extra time and saves your full duration. EVERY DETAIL ⢠Real-time BPM display + radial heart rate wave that shifts blue when calm, red when active ⢠Optional haptic heartbeat ā feel your pulse with every beat ⢠Set an intention before sitting; recall it after ⢠Session history with full per-second heart rate charts ⢠Heart Rate Variability (HRV) reading per session ⢠CSV export for power users ⢠Beautiful share card ā poster of your session ⢠HealthKit integration: every session saved as a Mind & Body workout ⢠Pure black, Georgia serif. No clutter. No animations to distract you. PRIVACY No accounts. No cloud. No analytics. No tracking. The app makes zero network requests. Everything stays on your device. NO SUBSCRIPTION. EVER. This isn't a wellness app trying to monetize your meditation. It's a measurement instrument for people who already have a practice. Download once. Use forever. REQUIREMENTS ⢠AirPods Pro 3 (or AirPods Pro 2 with USB-C and HR-capable firmware) for live heart rate via earbuds ⢠Apple Watch for live heart rate via wrist (any HR-capable model) ⢠iPhone running iOS 18.0 or later Without either AirPods or Watch, Heart Sit works as a beautiful meditation timer with the same overtime mode and session journaling. For serious meditators who want evidence, not affirmation.
Zen
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Just Sit. Your Way. Nothing Else. A silent meditation timer with traditional bells. The sit is free. Optional short guided sits when just sitting is hard. Then silence. No ads, no streaks, no account. JUST SIT Sit on a cushion or chair. Eyes barely open, soft gaze. Feel your body, breath, and posture. No mantra, no goal. When thoughts come and go, just return to sitting. The benefits are real ā a calm mind, more focus, more clarity, better sleep, less stress, more presence. They show up when you stop chasing them. YOUR WAY Just sit. Easier said than done. Just sitting can be brutal. Most people need a little guidance, and that detour is fine. Optional short guided sits ā the Just Sit course, one idea at a time ā then sit in silence. Or leave every optional feature off. Not a library of courses. Discover your way to just sit. NOTHING ELSE Everything you need to just sit is included, and stays free. A timer, bells, Watch, widgets. No ads, no streaks, no account to sit. The sit stays free. Always. Native on iPhone, iPad, and Apple Watch. Focus on what matters: just sit. HOW IT WORKS Open the app Ā· pick a duration Ā· sit. Beautiful bells, soundscapes, intervals, warmup and cooldown. If you want to look around: Welcome on first launch, then short guided sits for ordinary life. Nothing required. Explore at your own pace. WHY THIS EXISTS Hi, I'm Francis, a longtime Apple developer. I discovered regular meditation about 15 years ago. I suffer from PTSD, and meditation has helped me survive ā more than once ā when things fall apart. Meditation only clicked for me with a Zen just-sit practice. To get there I had to put in the time: other practices, sampling, trial and error, year after year of showing up to sit. I needed those 10,000 minutes on apps before I could stop searching and, in the end, just sit. Zen : Your Way is my way of giving back. A quiet timer. Optional guidance to nudge you toward just sitting. Nothing in the way of the sit itself. ON IPHONE AND IPAD ⢠Apple Watch companion ā start sits and complications on your wrist ⢠Home Screen widgets and Live Activities
Screenshots
Verdict
The clearest difference is device support: Zen at 6 against Heart Sit's 2. Zen also leads on iOS requirement (17.0 vs 26.2). On price, ads and in-app purchases there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Heart Sit | Zen |
|---|---|---|
| Price | Free | Free |
| Update frequency | ā | Every 2 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, Apple Watch | iPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro ā better |
| Requires iOS | 26.2 | 17.0 ā better |
| Further details ā not scored | ||
| Size | 7 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrii Gryshutkin | Francis Dierick |
In-app purchases
Heart Sit
No in-app purchases
Zen
No in-app purchases









