Session vs Hatchi
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Session
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Session is the interval training timer that adapts to YOUR sport. Whether you're running, doing HIIT, Tabata, or any other interval-based workout, Session lets you build fully customized sessions: number of reps, duration of each phase, type of effort (sprint, recovery, endurance, exercise, prep). WHY SESSION? 100% custom sessions โ create as many phases as you want, in whatever order you want Real-time visual timeline โ see exactly where you are in your session at a glance Customizable alerts โ sound, vibration, or voice guidance to stay focused without looking at your screen Works with locked screen โ start your session, pocket your phone, go Music-friendly โ alerts play clearly even over your playlist No sign-up required โ open the app and start, no account needed Free, no ads, no in-app purchases WHO IS IT FOR? Runners, athletes in physical training, interval trainers, HIIT and Tabata practitioners, or anyone who needs a reliable, simple interval timer. Your data stays on your phone. No account, no ad tracking. Your sport. Your pace. Your Session.
Hatchi
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Move, sleep, get outside โ Hatchi feels all of it. Keep your day up and your pet thrives; let it slide and its colors fade and it mopes about, which is usually what gets you out the door. Hatchi is a virtual pet that grows on real health data. No account, no ads, and nothing ever leaves your device. WHAT HATCHI READS Sleep, activity and steps, workouts, mindful minutes and time in daylight โ straight from the Health app. On iPhone it can also read your Screen Time, if you turn that trait on. Hatchi measures nothing itself: it reads whatever Health holds, wherever it comes from (an Apple Watch, a ring or another tracker, an app, even an entry made by hand). With an iPhone alone, Health knows less and some traits stay quiet: the more Health knows, the more Hatchi feels. HOW IT GROWS - Walk to hatch your egg and bring Hatchi to life - Stay consistent to level up and earn trophies - Unlock hats, backgrounds and animated effects as you climb APPLE WATCH The Watch app shows your pet, its traits and its progress at a glance, and it stands on its own: installed alone it hatches, reads your health data and runs with no iPhone. With both, they sync in real time. iPhone widgets and a watch face complication are free too. HATCHI+ (OPTIONAL) Today is always free โ every trait, every trophy, the whole day in progress. Hatchi+ lets you look back at the days behind you, adds Hatchi's Week with a card to keep, and opens the whole cosmetics collection. Hatchi+ is an auto-renewing subscription: monthly, or yearly with a 7-day free trial. The price is shown in the app before any purchase. Payment is charged to your Apple Account at confirmation, and the subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Manage or cancel it in Settings > your name > Subscriptions. Privacy Policy: https://hatchi.pierreramoin.com/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ PRIVACY FIRST Your health data and screen time are read on your device only. No server, no analytics, no tracking.
Screenshots
Verdict
The clearest difference is in-app purchases: Session at none against Hatchi's 2. Session also leads on iOS requirement (15.6 vs 26.0). On price, update cadence, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Hatchi sells 2 in-app purchases, starting at $1.99 per month. Session asks for nothing beyond the download.
Session ships an update every 5 days, Hatchi daily. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.
| Parameter | Session | Hatchi |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days | Daily โ better |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone, Apple Watch |
| Requires iOS | 15.6 โ better | 26.0 |
| Further details โ not scored | ||
| Size | 37 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Vincent DOLLO | Pierre Ramoin |
In-app purchases
Session
No in-app purchases
Hatchi
- Hatchi+ Monthly$1.991 Month
- Hatchi+ Yearly7 Days trial$14.991 Year









