# Cumulus vs Graf IoT

The clearest difference is in-app purchases: Graf IoT at none against Cumulus's 6. Graf IoT also leads on update cadence (monthly vs every 2 months). Cumulus's advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Cumulus sells 6 one-off in-app purchases. Graf IoT asks for nothing beyond the download.

Cumulus ships an update every 2 months, Graf IoT monthly. The most recent releases landed on October 19, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Cumulus | Graf IoT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 180 MB | 47 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Adolf Thies GMBH & CO. KG](https://appshunter.io/developer/1491679426) | [Otto Graf GmbH Kunststofferzeugnisse](https://appshunter.io/developer/571869799) |

## What reviewers say

### Cumulus

[App page](https://appshunter.io/ios/app/cumulus/id1491679427)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 12 months archiving period | $8.99 | one-time |
| 24 months archiving period | $15.99 | one-time |
| 1 year event handling | $84.99 | one-time |
| Buy 10 users | $139.99 | one-time |
| Buy 20 users | $179.99 | one-time |
| Buy 50 users | $299.99 | one-time |


### Graf IoT

[App page](https://appshunter.io/ios/app/graf-iot/id6791990483)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cumulus free?

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

### Is Graf IoT free?

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

### Do Cumulus or Graf IoT have ads?

Neither Cumulus nor Graf IoT shows ads.

### Which is updated more often, Cumulus or Graf IoT?

Cumulus ships an update every 2 months, and Graf IoT monthly. Most recently, Cumulus was updated on October 19, 2026 and Graf IoT on October 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.*