# Celsteel vs EcoDiam

The clearest difference is ads: Celsteel at none against EcoDiam's shown. Celsteel also leads on update cadence (every 5 weeks vs every 7 months) and iOS requirement (13.4 vs 26.0). On price, in-app purchases and device support there is nothing between them.

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

Celsteel ships an update every 5 weeks, EcoDiam every 7 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Celsteel | EcoDiam |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 7 months |
| Size | 10 MB | 54 MB |
| Requires iOS | **13.4** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Celsteel Ltd](https://appshunter.io/developer/1132526721) | [MID LA LLC](https://appshunter.io/developer/1305889004) |

## What reviewers say

### Celsteel

[App page](https://appshunter.io/ios/app/celsteel/id1132526722)

**Features:** macOS Compatibility

**In-app purchases:** none


### EcoDiam

[App page](https://appshunter.io/ios/app/ecodiam/id1642730670)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Celsteel free?

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

### Is EcoDiam free?

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

### Do Celsteel or EcoDiam have ads?

EcoDiam shows ads; Celsteel does not.

### Which is updated more often, Celsteel or EcoDiam?

Celsteel ships an update every 5 weeks, and EcoDiam every 7 months. Most recently, Celsteel was updated on October 26, 2026 and EcoDiam on October 25, 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.*