# CTGi vs RVTS Online

The clearest difference is update cadence: CTGi at every 3 months against RVTS Online's every 9 months. CTGi also leads on iOS requirement (13.0 vs 15.0). RVTS Online's advantage is device support (3 vs 1). On price, 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.

CTGi ships an update every 3 months, RVTS Online every 9 months. The most recent releases landed on October 2, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | CTGi | RVTS Online |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ctgi/id1342875195/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | Free | — |
| Size | 23 MB | 58 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [iSimulate Pty Ltd](https://appshunter.io/developer/494486341) | [Remote Vocational Training Scheme Ltd](https://appshunter.io/developer/1468948764) |

## What reviewers say

### CTGi

[App page](https://appshunter.io/ios/app/ctgi/id1342875195)

This app simulates a fetal heart rate monitor for obstetric training. It offers a realistic and economical platform for facilitators and students to learn and practice. Utilizing everyday technology, it provides an advanced simulation experience.

**Highlights:** Realistic fetal heart rate monitoring simulation, Economical training solution, Ideal for in-situ training, Advanced obstetric simulation, Built with everyday technology

**Features:** Vision Pro support

**In-app purchases:** none


### RVTS Online

[App page](https://appshunter.io/ios/app/rvts-online/id1468948765)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CTGi free?

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

### Is RVTS Online free?

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

### Do CTGi or RVTS Online have ads?

Neither CTGi nor RVTS Online shows ads.

### Which is updated more often, CTGi or RVTS Online?

CTGi ships an update every 3 months, and RVTS Online every 9 months. Most recently, CTGi was updated on October 2, 2026 and RVTS Online on October 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.*