Comparison

Odyssey App vs ISO

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Odyssey App

Manage your fitness club activities, book classes, and stay updated with the latest health news. Access timetables, offers, and contact information easily. Integrates with HealthKit to track activity and encourage fitness.

Highlights
  • Book fitness classes
  • View class timetables
  • Receive news and offers
  • Integrates with HealthKit
  • Contact club information
  • Push notifications
Features
Read full description

With the Odyssey app you always have your club in your pocket. Book fitness classes, top up your e-wallet, refer a friend, the latest health and weight loss news all at your fingertips. ------------------ With the Odyssey app you always have your facility in your pocket with quick and easy access to book your favourite fitness classes and activities. Get up-to-date information, news, fitness class timetables, public swim timetables, offers, events and receive push notifications for important news. FITNESS CLASS TIMETABLES Get real-time access to your timetable for classes, including times, fitness instructors and class description. FITNESS CLASS BOOKINGS Check availability, make a booking, amend a booking and cancel a booking – all on the move! NEWS AND PUSH NOTIFICATIONS Instantly get notified of news and events direct to your phone. With our app, you’ll immediately know when there are new events or classes, ensuring that you’ll never miss a thing. OFFERS Get push notifications for new offers so you always know about special promotions. CONTACT US Easily contact us with club telephone numbers and email addresses or view directions and maps. APPLE HEALTHKIT We also use HealthKit to allow users to share their activity and workout data with the app. This data is used to incentivise users to stay active.

About

ISO

Read full description

WHAT YOUR MUSIC SAYS ABOUT YOU ISO-1 is a music-first app that helps you understand the patterns in how you listen. The way you use music when you are overwhelmed, distracted, calm, in your feelings, or trying to focus is not random. ISO-1 helps you see those patterns more clearly, so you can understand what certain tracks, playlists, and listening habits are doing for you over time. WHAT YOU CAN DO WITH ISO-1 - Connect your music streaming service. Spotify is currently supported, with Apple Music coming soon. - See patterns in how your listening connects to mood, moments, and habits. - Build playlists using music that already works for different emotional states and goals. - Track how certain tracks or listening sessions feel, and build a personal picture over time. - Unlock deeper insights and more structured guidance if you want the full picture. INSIGHT FIRST, PRESSURE LAST ISO-1 is designed to fit around the way people already use music. You do not need to journal constantly or change how you listen overnight. You can start by simply noticing what is already there, then go deeper when it feels useful. BUILT WITH CARE ISO-1 is informed by music psychology, therapeutic listening approaches, and clinical input. It is designed to support reflection and self-understanding through music, not to replace therapy or medical care. Support resources are available if you need them. FREE TO START ISO-1 includes a free experience, with additional paid features for users who want deeper insight, richer pattern tracking, and more structure. Listen how you already listen. See more of what it means. Unlock more when you want to go deeper. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Odyssey App4 screens
ISO4 screens

Verdict

The call

The clearest difference is in-app purchases: Odyssey App at none against ISO's 3. Odyssey App also leads on iOS requirement (15.0 vs 18.1). ISO's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ISO sells 3 in-app purchases, starting at $3.99 per month. Odyssey App asks for nothing beyond the download.

UpkeepUpdate frequency

Odyssey App ships an update every 2 months, ISO every 2 weeks. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

Scorecard3 real differences · 7 level
Odyssey App versus ISO: the parameters behind the verdict, then further details
ParameterOdyssey AppISO
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better18.1
Further details — not scored
Size129 MB255 MB
Age rating17+4+
DeveloperOdyssey Knebworth LimitedIsofi Limited

In-app purchases

None

Odyssey App

No in-app purchases

3 purchases

ISO

Subscriptions2
  • Premium Monthly Subscription$3.991 Month
  • Premium Yearly Subscription$34.991 Year
One-time1
  • Unlock 'Listening History Upload'$12.99

Questions

Is Odyssey App free?
Odyssey App is free to download, with no in-app purchases.
Is ISO free?
ISO is free to download, with in-app purchases available.
Do Odyssey App or ISO have ads?
Neither Odyssey App nor ISO shows ads.
Which is updated more often, Odyssey App or ISO?
Odyssey App ships an update every 2 months, and ISO every 2 weeks. Most recently, Odyssey App was updated on October 24, 2026 and ISO on October 17, 2026.

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