# Third Space vs ECG

The clearest difference is update cadence: Third Space at every 2 weeks against ECG's every 3 months. ECG's advantage is iOS requirement (9.0 vs 15.1). On price, review sentiment, 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.

Third Space ships an update every 2 weeks, ECG every 3 months. The most recent releases landed on October 9, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Third Space | ECG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (109 ratings)](https://appshunter.io/ios/app/third-space/id1440461613/reviews)** | — |
| Number of ratings | **109** | — |
| Positive reviews | **70.4% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 94 MB | 51 MB |
| Requires iOS | 15.1 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Third Space](https://appshunter.io/developer/1706076679) | [Technomed Ltd](https://appshunter.io/developer/1440983538) |

## What reviewers say

### Third Space

[App page](https://appshunter.io/ios/app/third-space/id1440461613)

Access a vast library of workout videos and programs led by elite trainers. Book and manage classes, view live timetables, and sync with your calendar. Stay motivated and in control of your fitness journey.

**Highlights:** Workout video library, Class booking and management, Live class timetable, Calendar synchronization, Membership account management

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use app
- 👍 Sleek and intuitive design
- 🚀 Convenient booking process
- 👍 Helpful attendance tracker
- 🚀 Brilliantly designed

**What reviewers complain about**

- 🐛 Videos not loading
- 🤔 Difficult to navigate and find information
- 🤔 Lack of key features like waitlist visibility
- 🐛 Frequent crashes and login issues
- 🤔 Unintuitive UI changes

**Reported bugs**

- Videos not loading
- Frequent app crashes and login issues
- Inability to see waitlist position
- App resets filters and navigation when exiting class details

**Requested features**

- Bring back class booking countdown timer
- Allow saving of favorite clubs and class types
- Integrate with calendar apps
- Provide more detailed class and waitlist information
- Improve filtering and navigation options


### ECG

[App page](https://appshunter.io/ios/app/ecg-od-tracker/id1440983539)

Easily record symptoms experienced during a Holter monitoring session. This tool helps transmit your symptom notes to your clinician for review alongside your ECG recording. It does not provide diagnoses or medical advice and is not for emergencies.

**Highlights:** Record symptoms during Holter monitoring, Transmit symptom notes to clinician, Convenient symptom logging tool, Compatible with iPhone and iPad

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Third Space free?

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

### Is ECG free?

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

### Do Third Space or ECG have ads?

Neither Third Space nor ECG shows ads.

### Which is updated more often, Third Space or ECG?

Third Space ships an update every 2 weeks, and ECG every 3 months. Most recently, Third Space was updated on October 9, 2026 and ECG on September 29, 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.*