# Overblijfsoftware App vs 9

The clearest difference is in-app purchases: Overblijfsoftware App at none against 9's 1. Overblijfsoftware App also leads on ads (none vs shown). 9's advantage is update cadence (every 5 weeks vs every 70 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 9 sells 1 one-off in-app purchase. Overblijfsoftware App asks for nothing beyond the download.

Overblijfsoftware App ships an update every 70 months, 9 every 5 weeks. The most recent releases landed on March 8, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Overblijfsoftware App | 9 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 70 months | **Every 5 weeks** |
| Size | 2 MB | 26 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nijvink BV](https://appshunter.io/developer/909090941) | [Okko Meijer](https://appshunter.io/developer/1881299592) |

## What reviewers say

### Overblijfsoftware App

[App page](https://appshunter.io/ios/app/overblijfsoftware-app/id1500550675)

**Features:** macOS Compatibility

**In-app purchases:** none


### 9

[App page](https://appshunter.io/ios/app/9-box/id6761386274)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Verwijder advertenties | $2.99 | one-time |


## Frequently asked questions

### Is Overblijfsoftware App free?

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

### Is 9 free?

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

### Do Overblijfsoftware App or 9 have ads?

9 shows ads; Overblijfsoftware App does not.

### Which is updated more often, Overblijfsoftware App or 9?

Overblijfsoftware App ships an update every 70 months, and 9 every 5 weeks. Most recently, Overblijfsoftware App was updated on March 8, 2026 and 9 on September 18, 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.*