Kahunas vs CellSync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kahunas
This app connects clients with their online coaches. Coaches can manage clients, update plans, and communicate directly. Clients can log workouts, track nutrition, and message their coach.
- Client management
- Workout and diet plan updates
- Check-in tracking
- Direct messaging
- Workout logging
- Nutrition plan viewing
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Online Coaches - Manage your clients on the go. - Update workout or diet plans. - View check-ins. - Message your clients. Clients - Check-in in the app. - Message your coach. - Log your workouts. - View your nutrition & supplement plans. Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy
CellSync
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CellSync is a personalised skincare companion built around how your skin actually behaves — not what a label tells you to buy. Take a CELA Scan and, within moments, CELA — your CellSync AI concierge — gives you a clear reading of the appearance of your skin across ten measured aspects: hydration, evenness, lines, pigmentation, pores, redness, blemishes, firmness, dark circles and puffiness, combined into one Sync score. From there, CELA builds a protocol around your skin type, your concerns and the products you already use at home. FREE TO USE. NO SUBSCRIPTION. Every CellSync account includes a full skin reading at no cost. No trial, no weekly fee, no paywall on your results. • A complete CELA Scan every 14 days, with your full reading, including skin age and eye age • Your personalised protocol • Six questions to CELA about each reading Every CellSync device order includes an access code, sent by email, that opens everything else: unlimited readings, your complete protocol with session tracking, unlimited CELA, scan reminders, My Kit and rewards. WHAT'S INSIDE CELA Skin Scan A guided camera checks your light, angle and framing as you go, and takes the photo only when conditions are right — so every scan can be compared with the last. Each reading scores ten aspects of how your skin looks, notes your skin type and tone, and tracks it all, scan by scan. Progress Photos Keep the front photo from each scan, privately in your account, and compare any two side by side with the change in each score. Off unless you choose it, with an optional fingerprint or face lock. CELA — your AI skincare concierge Ask CELA anything: "Can I layer retinol with my serum tonight?", "What should I add to my evening routine?", "Why is my skin reacting this week?" CELA reads your scan history, your products and your local weather, and answers in plain English. Personalised protocols 4-scan journeys (7, 14, 21 and 28 days) that adjust as your skin shifts. Reminders when it's time to rescan, check-in questions that fine-tune the plan, and CELA messages in-app and by email. Skin environment Your skin doesn't live in a vacuum. CellSync factors in your local UV, humidity and temperature so your ritual adapts when conditions do. Location is optional. Shop the ritual Browse the full CellSync collection — masks, serums, devices and accessories — with launch countdowns and "Notify me" for upcoming releases. Every recommendation is connected to your protocol, so it has a reason. My Kit and rewards Add the products you already own and CELA factors them in. Earn rewards as you scan, refer and complete protocols. Privacy first Scan photos are used only to take your reading and are deleted as soon as it's complete; only your derived metrics are kept, in your account and your account alone. Turn on Progress Photos and we also keep the front photo from each scan, privately, until you delete it or switch the feature off. Lock CellSync with Face ID if you choose, and sign back in with a glance. Delete your account from inside the app and your data goes with it. GETTING STARTED 1. Create a free account with your email, Google or Apple 2. Tell CELA your skin type and concerns 3. Take your first guided scan 4. Meet CELA and start your protocol WHY CELLSYNC Most skincare apps are review aggregators or thin wrappers around a single brand. CellSync connects measurement, protocol and product in one place, so every recommendation and every CELA reply is grounded in your own readings and what's actually on your shelf. Skincare designed to listen. Support: support@cellsync.co.uk Privacy Policy: https://cellsync.co.uk/policies/privacy-policy Terms of Service: https://cellsync.co.uk/policies/terms-of-service CellSync products are cosmetics. Skin analysis in the app assesses the appearance of your skin and is not a medical assessment. Results vary between individuals. If you have concerns about your skin health, speak to a qualified healthcare professional.
Screenshots
Verdict
The clearest difference is in-app purchases: CellSync at none against Kahunas's 1. CellSync also leads on update cadence (weekly vs monthly). On price, ads, device support 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. Kahunas sells 1 in-app purchase, starting at $95.99 per month. CellSync asks for nothing beyond the download.
Kahunas ships an update monthly, CellSync weekly. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.
| Parameter | Kahunas | CellSync |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (77 ratings) — better | — |
| Positive reviews | 19.3% of reviews | — |
| Number of ratings | 77 — better | — |
| Update frequency | Monthly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 51 MB | 62 MB |
| Age rating | 17+ | 17+ |
| Developer | Mark Covey-Fox | CellSync Limited |
Bugs and requests
Kahunas
Reported bugs
26 issues- App crashes when locking phone
- Crashes during workout logging
- Login screen freezes
- Barcode scanner launches blank screen
- Rest timer displays incorrect duration
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- Workout data disappears after app exit
- Nutrition data calculations incorrect (off by 150-200 calories)
- Food entries randomly removed from diary
- App logs out randomly
- Check-in data erases when re-entering
- Keyboard jumps page when filling workout data
- Workout ordering forces wrong selection
- Unable to view exercises correctly
- Infinite loading on customer programs
- Password not remembered/cannot be changed
- App-breaking bugs with slow support response
- Payment info failure locks account
- Blue circle of death (complete data loss)
- Workout session disappears if client misses scheduled time
- Notifications constantly pop up
- Unable to create account/sign up issues
- App freezes when viewing longer text in workouts
- Inconsistent date display for workouts and check-ins
- Unable to select workouts after update
- Cannot edit daily check-ins
- Syncing issues between devices
Requested features
18 requests- Apple Watch integration and complications
- MyFitnessPal integration
- Save/reuse meal feature
- Auto-save functionality for workouts
- Weight tracking widget
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- Cardio and step tracking from Apple Health
- Better notification settings/customization
- Drop set logging within sets
- Exercise order switching capability
- Meal filter options
- Weekly macro averages calculation
- Persistent chat history (not auto-delete)
- Reply functionality for check-ins
- Dark mode option
- Better dashboard home screen
- PDF viewing in-app
- Multi-device login capability
- Offline mode
CellSync
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Kahunas
- Monthly subscription$95.991 Month
CellSync
No in-app purchases









