# LDM Valves vs UnitFlow

The clearest difference is iOS requirement: UnitFlow at 13.0 against LDM Valves's 15.3. 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.

## The numbers

| Metric | LDM Valves | UnitFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Size | 37 MB | 19 MB |
| Requires iOS | 15.3 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LDM, spol. s r.o.](https://appshunter.io/developer/1807390383) | [SHIM THEE YAP](https://appshunter.io/developer/1855780899) |

## What reviewers say

### LDM Valves

[App page](https://appshunter.io/ios/app/ldm-valves/id6744373442)

**Features:** macOS Compatibility

**In-app purchases:** none


### UnitFlow

[App page](https://appshunter.io/ios/app/unitflow-unit-converter/id6755711453)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LDM Valves free?

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

### Is UnitFlow free?

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

### Do LDM Valves or UnitFlow have ads?

Neither LDM Valves nor UnitFlow shows ads.

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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.*