# CHARTtrainers vs PROMISE (App)

The clearest difference is ads: PROMISE (App) at none against CHARTtrainers's shown. PROMISE (App) also leads on update cadence (every 2 weeks vs every 4 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

CHARTtrainers ships an update every 4 months, PROMISE (App) every 2 weeks. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | CHARTtrainers | PROMISE (App) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Size | 52 MB | 138 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [The Council of Hotel & Restaurant Trainers](https://appshunter.io/developer/1626277300) | [One Network (Private) Limited](https://appshunter.io/developer/1574366734) |

## What reviewers say

### CHARTtrainers

[App page](https://appshunter.io/ios/app/charttrainers/id1626277298)

**Features:** macOS Compatibility

**In-app purchases:** none


### PROMISE (App)

[App page](https://appshunter.io/ios/app/promise-app/id6764890137)

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

**In-app purchases:** none


## Frequently asked questions

### Is CHARTtrainers free?

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

### Is PROMISE (App) free?

PROMISE (App) is free to download, with no in-app purchases.

### Do CHARTtrainers or PROMISE (App) have ads?

CHARTtrainers shows ads; PROMISE (App) does not.

### Which is updated more often, CHARTtrainers or PROMISE (App)?

CHARTtrainers ships an update every 4 months, and PROMISE (App) every 2 weeks. Most recently, CHARTtrainers was updated on September 10, 2026 and PROMISE (App) on September 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.*