# TRAPP Diffuser vs GrowFlow

The clearest difference is in-app purchases: TRAPP Diffuser at none against GrowFlow's 2. TRAPP Diffuser also leads on iOS requirement (11.0 vs 15.0). GrowFlow's advantage is update cadence (weekly vs every 12 months). On price, ads and device support there is nothing between them.

Both are free to download. GrowFlow sells 2 in-app purchases, starting at $4.99 per month. TRAPP Diffuser asks for nothing beyond the download.

TRAPP Diffuser ships an update every 12 months, GrowFlow weekly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | TRAPP Diffuser | GrowFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Weekly** |
| Size | 173 MB | 25 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dongguan Yih-Teh Electric Products Co., Ltd.](https://appshunter.io/developer/1604523226) | [SB Digital](https://appshunter.io/developer/6783711754) |

## What reviewers say

### TRAPP Diffuser

[App page](https://appshunter.io/ios/app/trapp-diffuser/id1604523223)

**Features:** macOS Compatibility

**In-app purchases:** none


### GrowFlow

[App page](https://appshunter.io/ios/app/growflow-plant-care-tracker/id6783711751)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GrowFlow Pro | $4.99 | per month |
| GrowFlow Pro | $49.99 | per year |


## Frequently asked questions

### Is TRAPP Diffuser free?

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

### Is GrowFlow free?

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

### Do TRAPP Diffuser or GrowFlow have ads?

Neither TRAPP Diffuser nor GrowFlow shows ads.

### Which is updated more often, TRAPP Diffuser or GrowFlow?

TRAPP Diffuser ships an update every 12 months, and GrowFlow weekly. Most recently, TRAPP Diffuser was updated on October 25, 2026 and GrowFlow on October 24, 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.*