# CTGi vs Tweris Mini

The clearest difference is device support: Tweris Mini at 3 against CTGi's 1. 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.

CTGi ships an update every 3 months, Tweris Mini every 2 months. The most recent releases landed on September 1, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | CTGi | Tweris Mini |
| --- | --- | --- |
| 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 2 months** |
| Monetization | Free | — |
| Size | 23 MB | 48 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [iSimulate Pty Ltd](https://appshunter.io/developer/494486341) | [Tweris](https://appshunter.io/developer/1595285402) |

## 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


### Tweris Mini

[App page](https://appshunter.io/ios/app/tweris-mini/id6477275134)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CTGi free?

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

### Is Tweris Mini free?

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

### Do CTGi or Tweris Mini have ads?

Neither CTGi nor Tweris Mini shows ads.

### Which is updated more often, CTGi or Tweris Mini?

CTGi ships an update every 3 months, and Tweris Mini every 2 months. Most recently, CTGi was updated on September 1, 2026 and Tweris Mini on September 13, 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.*