# Length Converter Pro vs Convertal

The clearest difference is ads: Length Converter Pro at none against Convertal's shown. Length Converter Pro also leads on update cadence (every 5 days vs every 2 weeks) and iOS requirement (13.4 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Length Converter Pro sells 3 in-app purchases, starting at $0.99 per 7 days and Convertal sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Length Converter Pro ships an update every 5 days, Convertal every 2 weeks. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Length Converter Pro | Convertal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Size | 1 MB | 45 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Anna Filobok](https://appshunter.io/developer/1613515832) | [ASIL SOFTWARE LIMITED](https://appshunter.io/developer/6785619684) |

## What reviewers say

### Length Converter Pro

[App page](https://appshunter.io/ios/app/length-converter-pro/id1621694392)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $0.99 | per 7 days |
| Premium Access | $1.99 | per month |
| Premium Access | $5.99 | per year |


### Convertal

[App page](https://appshunter.io/ios/app/convertal/id6785619682)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Convertal Pro | $0.99 | per month |
| Convertal Pro | $5.99 | per year |
| Convertal Pro | $12.99 | one-time |


## Frequently asked questions

### Is Length Converter Pro free?

Length Converter Pro is free to download, with in-app purchases available.

### Is Convertal free?

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

### Do Length Converter Pro or Convertal have ads?

Convertal shows ads; Length Converter Pro does not.

### Which is updated more often, Length Converter Pro or Convertal?

Length Converter Pro ships an update every 5 days, and Convertal every 2 weeks. Most recently, Length Converter Pro was updated on October 3, 2026 and Convertal on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*