1FIT Client vs Aion Coach
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
1FIT Client
This platform connects clients with their online fitness coaches, allowing seamless interaction and progress tracking. Clients can monitor workouts, nutrition, daily metrics, and view detailed progress visualizations. It facilitates communication with coaches and access to resources for continued development.
- Access coach-set plans
- Track workouts, food, and activity
- Monitor daily metrics
- Visualize progress with detail pages
- Communicate with your coach
- Add progress photos
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1FIT is an online fitness coaching platform that enables you to interact seamlessly with your coach & make fitness work for you. We provide a client-side experience for you to track everything you need in a single place & visualise the progress towards the goals you have set with your coach. 1FIT helps you to stay accountable to your long-term success from your smartphone anytime, anywhere. WHO CAN USE THE APP: 1FIT is only for clients of online fitness coaches. Clients can only use 1FIT if their coach uses 1FIT and has onboarded them. FEATURES FOR CLIENTS: • Access all plans that have been set by your coach. • Track your workouts, your food intake and your activity seamlessly. • Track daily metrics that your coach has requested. • Visualise progress in one place with detail pages. • Respond to your coaches check ins and view their responses. • Send messages to and receive messages from your coach with Messaging. • Add progress photos to your shared gallery with your coach. • View coach resources to continue your health and fitness development. IMPORTANT NOTE: This app is a companion app for online fitness coaches that use 1FIT. It is only for clients; if you’re a client, ask your coach to be onboarded so you can log in to the app. We also collect health data that you choose to submit in the app for the purposes of surfacing a complete set of data to your coach. If you do not want to share this, please message your coach.
Aion Coach
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Aion Coach plans your training week around your goal, the days you can train, the time you have and the kit you own. When life gets in the way, the week changes with you. YOUR PLAN IS FREE Your weekly plan, every workout, form videos, the rest timer and your logbook are free, and so is next week, written for you as this one ends. When a session goes well, the next one gets heavier. One exercise swap per workout is free too. AION, YOUR COACH Membership adds Aion, an AI coach that answers any hour and changes your week when your life does. • Only 30 minutes today? Say so, and the workout shrinks to fit. • Saturday fell through? It moves to Sunday. • Sore knee? Aion remembers it, eases the moves that need it, and brings them back when you say it feels fine. • Want a different exercise, a whole new workout or today's focus? Ask. • A morning check-in shapes the day, and the next session adjusts to how the last one felt. Every change shows exactly what moves before you apply it. BUILT FOR HOW YOU TRAIN • Strength, muscle, running, HYROX and general fitness • A full gym, dumbbells or bands at home, a hotel gym, or no equipment at all • Sets, reps, rest and a timer on every move • Lift charts, personal records and your past 30 days on Progress • Apple Health: sleep, steps, resting heart rate and HRV can inform your training • Sign in with Apple or Google, metric or US units MEMBERSHIP Choose Weekly, Monthly or Annual. Annual includes seven days free for eligible Apple accounts before it renews. US prices: Weekly $3.49 per week, Monthly $9.99 per month, Annual $59.99 per year after the trial. Eligible accounts can pay $2.99 for the first month of Monthly, then $9.99 per month; this is a paid introductory price, not a free trial. Apple decides introductory offer eligibility. Local prices and offers are shown in the app before you buy. Memberships renew automatically until cancelled in your Apple subscription settings. To avoid being charged for Annual, cancel at least 24 hours before the trial ends. YOUR DATA Aion's replies are written by a third-party AI service, and the app asks your permission before your first message goes to it. Aion remembers the training facts you share, such as goals, equipment, schedule, preferences, injuries and recent feedback, so its advice uses what you already told it. You can correct it in chat, contact support, or delete your account from your profile. Aion Coach gives fitness guidance only. It is not medical advice, diagnosis, treatment, physical therapy or emergency care. Stop if something feels wrong and see a qualified professional. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Aion Terms: https://aionthecoach.com/terms Privacy Policy: https://aionthecoach.com/privacy Support: https://aionthecoach.com/support
Screenshots
Verdict
The clearest difference is in-app purchases: 1FIT Client at none against Aion Coach's 3. 1FIT Client also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement 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. Aion Coach sells 3 in-app purchases, starting at $3.49 per 7 days. 1FIT Client asks for nothing beyond the download.
1FIT Client ships an update every 3 days, Aion Coach every 4 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.
| Parameter | 1FIT Client | Aion Coach |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (18 ratings) — better | — |
| Positive reviews | 42.4% of reviews | — |
| Number of ratings | 18 — better | — |
| Update frequency | Every 3 days — better | Every 4 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 92 MB | 50 MB |
| Age rating | 4+ | 12+ |
| Developer | 1FITUK Limited | NICCOLO VALENTI |
In-app purchases
1FIT Client
No in-app purchases
Aion Coach
- Weekly Membership$3.497 Days
- Monthly Membership1 Month trial$9.991 Month
- Annual Membership7 Days trial$59.991 Year









