O vs AUT Millennium
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
O
Manage your wellness journey with this app. View class schedules, book appointments, and access special in-app promotions. Streamline your health and fitness routine.
- View class schedules
- Sign up for classes
- Book appointments
- Access exclusive promotions
- Manage wellness routine
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Download the O-Studio App today and make your wellness routine even easier! From the App you can view our schedules, sign-up for classes & appointments and get access to exclusive in-app promotions. Download the app today!
AUT Millennium
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Welcome to the AUT Millennium Members app! Our app will help you to make your visits to our facility stress-free. The app offers a range of different features depending on your membership type. Features for our gym and aquatic members: *Easily scan into the gym using a QR code. *View and book into your favourite Group Fitness classes with the push of a button. *Track your membership payments. *Receive push notifications about facility updates. *Update your details. Features for our Swim School families: *Easily scan into swim school lessons using a QR code. *Track your child’s skills progression. *Track swimming lesson payments. *Receive push notifications about facility updates. *Update your details.
Screenshots
Verdict
O and AUT Millennium are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
O ships an update monthly, AUT Millennium every 2 months. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.
| Parameter | O | AUT Millennium |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 194 MB | 100 MB |
| Age rating | 4+ | 4+ |
| Developer | o studio christchurch limited | Perfect Gym Solutions Sp. z o.o. |
In-app purchases
O
No in-app purchases
AUT Millennium
No in-app purchases
