Dopamining vs Stamp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dopamining
Build life-changing habits by committing to one atomic action daily. This app helps rewire your brain through consistent practice, making a single habit non-negotiable for personal transformation.
- Atomic habit building
- Daily commitment tracking
- Brain rewiring through consistency
- Life-changing habit formation
- Non-negotiable habit setting
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Rewire your brain through consistency. Make a single atomic habit non-negotiable. A daily habit that will change your life. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Stamp
This app automatically logs your non-meeting activities, like reading or exercise, as calendar events. It offers a one-tap timer for manual logging and integrates with Strava and Whoop for seamless workout and sleep tracking. Your calendar will finally reflect your entire day.
- One-tap start/stop timer
- Strava integration for workouts
- Whoop integration for sleep and recovery
- Syncs with Apple, Google, and Outlook Calendar
- Customizable activities with names and colors
- Live Activity on Lock Screen and Dynamic Island
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Stamp - Calendar Logger Your calendar shows every meeting. But where did the rest of your day go? The hours you spent reading, studying, or at the gym — they just disappear. Stamp logs them as calendar events automatically, so your calendar finally reflects your whole day. STAMP IS NOT A HABIT TRACKER No streaks. No check-ins. No badges. Stamp is a calendar tool — specifically the write layer that calendar apps have always been missing. It does one thing and does it well. HOW IT WORKS Log anything with a one-tap timer. Tap start when you begin, tap stop when you're done — the session appears in your calendar with the exact start and end time. Connect Strava and workouts go straight to your calendar the moment you finish a run or ride, no timer needed. Connect Whoop and your sleep sessions, workouts, and a daily recovery summary with HRV and recovery score appear in your calendar automatically every day. KEY FEATURES One-tap start/stop timer per activity Strava integration — workouts sync to your calendar automatically when you finish Whoop integration — sleep sessions, workout activities and daily recovery summary with HRV and recovery score sync automatically Connects to Apple, Google, and Outlook Calendar Customize activities with names and colors Adjust session times and add a note before saving Live Activity on the Lock Screen and Dynamic Island while a session is running Timer keeps running if you leave the app Session history — last 30 days at a glance, with links back to Strava and Whoop activities Works offline — sessions sync to your calendar when you reconnect
Screenshots
Verdict
The clearest difference is update cadence: Dopamining at every 3 days against Stamp's every 3 weeks. Dopamining also leads on ratings volume (4 vs 1). Stamp's advantage is iOS requirement (15.1 vs 18.1). On price, rating, review sentiment and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Dopamining against 5.0 for Stamp. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Dopamining ships an update every 3 days, Stamp every 3 weeks. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.
| Parameter | Dopamining | Stamp |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 3 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.1 | 15.1 — better |
| Further details — not scored | ||
| Size | 98 MB | 39 MB |
| Age rating | 17+ | 4+ |
| Developer | Dopamining LLC | Robert Piovesan |
Customer experience
Dopamining
Stamp
In-app purchases
Dopamining
No in-app purchases
Stamp
No in-app purchases









