# CABG vs Tellback

The clearest difference is in-app purchases: CABG at none against Tellback's 2. CABG also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17). Tellback's advantage is update cadence (every 9 days vs every 2 months). On price and ads there is nothing between them.

Both are free to download. Tellback sells 2 in-app purchases, starting at $3.99 per 7 days. CABG asks for nothing beyond the download.

CABG ships an update every 2 months, Tellback every 9 days. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | CABG | Tellback |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cabg-opcab-surgery-training/id1098914943/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Free | — |
| Size | 28 MB | 22 MB |
| Requires iOS | **14.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Meplis N.V.](https://appshunter.io/developer/1098914942) | [Berkay Calmaz](https://appshunter.io/developer/1896730947) |

## What reviewers say

### CABG

[App page](https://appshunter.io/ios/app/cabg-opcab-surgery-training/id1098914943)

This educational course breaks down the knowledge, skills, and attitudes required for successful off-pump coronary artery bypass (OPCAB) surgery. It aims to optimize conceptual and operational learning for medical professionals involved in OPCAB procedures.

**Highlights:** OPCAB surgical approach deconstruction, Knowledge, skills, and attitude optimization, Conceptual learning enhancement, Operational learning enhancement, Sustaining OPCAB programs, 53 video lessons, 150 figures

**Features:** macOS Compatibility

**In-app purchases:** none


### Tellback

[App page](https://appshunter.io/ios/app/tellback-speaking-practice/id6770290330)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $3.99 | per 7 days |
| Pro Monthly | $8.99 | per month |


## Frequently asked questions

### Is CABG free?

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

### Is Tellback free?

Tellback is free to download, with in-app purchases available.

### Do CABG or Tellback have ads?

Neither CABG nor Tellback shows ads.

### Which is updated more often, CABG or Tellback?

CABG ships an update every 2 months, and Tellback every 9 days. Most recently, CABG was updated on November 2, 2026 and Tellback on November 5, 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.*