# Cubii vs ExerciseRx®

The clearest difference is rating: ExerciseRx® at 5.0 against Cubii's 3.4. Cubii's advantage is ratings volume (426 vs 4) and device support (4 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

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

ExerciseRx® holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: Cubii has 426 ratings behind it against 4, so its average is the more settled of the two.

Cubii ships an update monthly, ExerciseRx® every 6 weeks. The most recent releases landed on August 20, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | Cubii | ExerciseRx® |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (426 ratings)](https://appshunter.io/ios/app/cubii/id1038009195/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/exerciserx/id6443440394/reviews)** |
| Number of ratings | **426** | 4 |
| Positive reviews | 28.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 121 MB | 7 MB |
| Requires iOS | **13** | 14.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fitness Cubed Inc](https://appshunter.io/developer/1038009194) | [University Of Washington](https://appshunter.io/developer/328228464) |

## What reviewers say

### Cubii

[App page](https://appshunter.io/ios/app/cubii/id1038009195)

Enhance your workday with this companion app for a smart desk elliptical. Track your activity in real-time, set personal fitness goals, and compete with friends to stay motivated and achieve a healthier lifestyle.

**Highlights:** Real-time activity tracking (strides, distance, calories), Goal setting and progress tracking, Push notifications for motivation, Social competition with friends and groups, Wireless Bluetooth syncing, Integration with Apple Health and Fitbit

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent exercise equipment
- 👍 Great app integration
- 💪 Helps with injury rehab and staying active
- 🤝 Good customer service

**What reviewers complain about**

- 🐛 App crashes and syncing issues
- 🔨 Unreliable data tracking and recording
- 🤔 Confusing app interface and functionality
- 🔍 Lack of support for older/non-Bluetooth models

**Reported bugs**

- App fails to record full workout sessions
- Data resets at midnight, losing historical progress
- Resistance controls not working as expected
- Inability to manually add or edit workout data

**Requested features**

- Add manual workout entry option
- Improve app connectivity and sync reliability
- Provide more customization and social features
- Develop an Apple Watch app


### ExerciseRx®

[App page](https://appshunter.io/ios/app/exerciserx/id6443440394)

This platform helps users increase physical activity by tailoring goals, identifying barriers, and providing motivational support. It connects users with their healthcare team and tracks physical activity patterns for a provider dashboard. An activation code is currently required.

**Highlights:** Tailored physical activity goals, Identification of barriers and facilitators, Motivational nudges, Connection to healthcare team, Provider dashboard integration, Physical activity pattern tracking

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Cubii free?

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

### Is ExerciseRx® free?

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

### Which has better reviews, Cubii or ExerciseRx®?

ExerciseRx® is rated higher. Cubii averages 3.4 out of 5 from 426 ratings, while ExerciseRx® averages 5.0 from 4 ratings.

### Do Cubii or ExerciseRx® have ads?

Neither Cubii nor ExerciseRx® shows ads.

### Which is updated more often, Cubii or ExerciseRx®?

Cubii ships an update monthly, and ExerciseRx® every 6 weeks. Most recently, Cubii was updated on August 20, 2026 and ExerciseRx® on August 26, 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.*