# Plaans vs OS/

The clearest difference is in-app purchases: OS/ at none against Plaans's 5. OS/ also leads on update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Plaans sells 5 in-app purchases, starting at $19.99 per month. OS/ asks for nothing beyond the download.

Plaans ships an update every 3 weeks, OS/ weekly. The most recent releases landed on May 16, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Plaans | OS/ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 10 MB | 40 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mikavaa GmbH](https://appshunter.io/developer/638194134) | [314 OS GmbH](https://appshunter.io/developer/1805669218) |

## What reviewers say

### Plaans

[App page](https://appshunter.io/ios/app/plaans-site-documentation/id700653190)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $19.99 | per month |
| 5 additional credits | $8.99 | one-time |
| 10 additional credits | $17.99 | one-time |
| 25 additional credits | $35.99 | one-time |
| Plaans full version | $89.99 | one-time |


### OS/

[App page](https://appshunter.io/ios/app/os/id6744038994)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Plaans free?

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

### Is OS/ free?

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

### Do Plaans or OS/ have ads?

Neither Plaans nor OS/ shows ads.

### Which is updated more often, Plaans or OS/?

Plaans ships an update every 3 weeks, and OS/ weekly. Most recently, Plaans was updated on May 16, 2026 and OS/ on September 9, 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.*