# CES Trainer vs IRIS

The clearest difference is in-app purchases: IRIS at none against CES Trainer's 1. IRIS also leads on update cadence (every 2 days vs every 11 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CES Trainer sells 1 one-off in-app purchase. IRIS asks for nothing beyond the download.

CES Trainer ships an update every 11 months, IRIS every 2 days. The most recent releases landed on October 27, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | CES Trainer | IRIS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ces-trainer-seafarer-test/id6737857414/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 62 MB | 58 MB |
| Requires iOS | 17.4 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Yevgenii Kryzhanivskyi](https://appshunter.io/developer/1778319692) | [ELOSOFT INC](https://appshunter.io/developer/1582738042) |

## What reviewers say

### CES Trainer

[App page](https://appshunter.io/ios/app/ces-trainer-seafarer-test/id6737857414)

Prepare for the CES seafarer test with practice questions and instant feedback. Study all questions with answers, track your readiness score, and review mistakes. Works offline with a clean design and dark mode.

**Highlights:** Practice CES-format questions, Offline access to all questions, Training and exam modes, Readiness score tracking, Review mistakes and save favorites, Searchable question bank

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy me a beer | $4.99 | one-time |


### IRIS

[App page](https://appshunter.io/ios/app/iris-sams/id6802582212)

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

**In-app purchases:** none


## Frequently asked questions

### Is CES Trainer free?

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

### Is IRIS free?

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

### Do CES Trainer or IRIS have ads?

Neither CES Trainer nor IRIS shows ads.

### Which is updated more often, CES Trainer or IRIS?

CES Trainer ships an update every 11 months, and IRIS every 2 days. Most recently, CES Trainer was updated on October 27, 2026 and IRIS on October 9, 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.*