# ISDR Test vs Billboard

The clearest difference is device support: Billboard at 2 against ISDR Test's —. ISDR Test's advantage is iOS requirement (11.2 vs 14.0). On price and in-app purchases 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 | ISDR Test | Billboard |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 9 days |
| Size | 13 MB | 23 MB |
| Requires iOS | **11.2** | 14.0 |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Artur Rybak](https://appshunter.io/developer/1062686853) | [HaEun Kim](https://appshunter.io/developer/1711313351) |

## What reviewers say

### ISDR Test

[App page](https://appshunter.io/ios/app/isdr-test/id1366658157)

**In-app purchases:** none


### Billboard

[App page](https://appshunter.io/ios/app/billboard-led/id6741427881)

**In-app purchases:** none


## Frequently asked questions

### Is ISDR Test free?

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

### Is Billboard free?

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

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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.*