# RIO vs Atom Studio

The clearest difference is update cadence: RIO at every 2 weeks against Atom Studio's every 3 months. RIO also leads on iOS requirement (14.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RIO ships an update every 2 weeks, Atom Studio every 3 months. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | RIO | Atom Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rio/id1161393389/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 35 MB | 25 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Servicios Imagenologicos de Occidente, S.A. de C.V.](https://appshunter.io/developer/1161393388) | [Edgar Barba](https://appshunter.io/developer/1418360228) |

## What reviewers say

### RIO

[App page](https://appshunter.io/ios/app/rio/id1161393389)

Manage your healthcare appointments, access lab and imaging results, and generate invoices easily. Stay informed about your health with reminders and exclusive rewards.

**Highlights:** Schedule appointments, Access study results, Generate invoices, Manage appointments and reminders, View RIO Rewards points, Receive notifications

**Features:** macOS Compatibility

**In-app purchases:** none


### Atom Studio

[App page](https://appshunter.io/ios/app/atom-studio/id6443804664)

Streamline your fitness routine with this app. Book classes, pay from your phone, and enter the studio using your QR code. Manage your schedule, waitlists, and class packages effortlessly.

**Highlights:** Book classes instantly, Pay via mobile, QR code entry, Seat selection, Waitlist functionality, Manage class packages

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is RIO free?

RIO is free to download, with no in-app purchases.

### Is Atom Studio free?

Atom Studio is free to download, with no in-app purchases.

### Do RIO or Atom Studio have ads?

Neither RIO nor Atom Studio shows ads.

### Which is updated more often, RIO or Atom Studio?

RIO ships an update every 2 weeks, and Atom Studio every 3 months. Most recently, RIO was updated on September 9, 2026 and Atom Studio on September 18, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*