# CompostUMH vs Valtek

The clearest difference is update cadence: CompostUMH at every 8 months against Valtek's every 19 months. On price, ads, 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.

CompostUMH ships an update every 8 months, Valtek every 19 months. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | CompostUMH | Valtek |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/compostumh/id1299055496/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 19 months |
| Monetization | Free | — |
| Size | 52 MB | 14 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Universidad Miguel Hernandez de Elche](https://appshunter.io/developer/739003295) | [Westport Fuel Systems Italia SRL](https://appshunter.io/developer/1450387152) |

## What reviewers say

### CompostUMH

[App page](https://appshunter.io/ios/app/compostumh/id1299055496)

This app assists agricultural producers in managing organic waste through composting. It offers a composting calculator and a database of local raw materials to support sustainable, circular economy practices. The project includes both online and in-person training.

**Highlights:** Organic waste management, Composting calculator, Database of local raw materials, Assisted process design, Online and in-person training, Sustainable agriculture practices

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

**In-app purchases:** none


### Valtek

[App page](https://appshunter.io/ios/app/valtek/id1595560531)

**In-app purchases:** none


## Frequently asked questions

### Is CompostUMH free?

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

### Is Valtek free?

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

### Do CompostUMH or Valtek have ads?

Neither CompostUMH nor Valtek shows ads.

### Which is updated more often, CompostUMH or Valtek?

CompostUMH ships an update every 8 months, and Valtek every 19 months. Most recently, CompostUMH was updated on October 8, 2026 and Valtek on October 14, 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.*