# myStrom Mobile vs Flow Test Collector

The clearest difference is in-app purchases: Flow Test Collector at none against myStrom Mobile's 10. myStrom Mobile's advantage is device support (4 vs 2). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. myStrom Mobile sells 10 in-app purchases, starting at $2.99 per year. Flow Test Collector asks for nothing beyond the download.

myStrom Mobile ships an update every 2 weeks, Flow Test Collector monthly. The most recent releases landed on November 10, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | myStrom Mobile | Flow Test Collector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mystrom-mobile/id546326128/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 51.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 62 MB | 30 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [myStrom AG](https://appshunter.io/developer/546326171) | [DataFuelsGrowth GmbH](https://appshunter.io/developer/1852027366) |

## What reviewers say

### myStrom Mobile

[App page](https://appshunter.io/ios/app/mystrom-mobile/id546326128)

Monitor solar power generation, manage energy consumption, and control smart home devices. Automate your home with custom scenes and actions, and enhance security with smart alerts. Integrates with popular third-party smart home products.

**Highlights:** Solar power generation metering, Electricity consumption monitoring, Smart device control, Scene and action automation, Device organization by room, Home security monitoring, Third-party device integration

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| myStrom Plus | $2.99 | per year |
| myStrom Plus | $2.99 | per year |
| myStrom Plus | $2.99 | per year |
| Home Guard – Monthly | $3.99 | per month |
| Data Option | $3.99 | per year |
| myStrom Pro | $9.99 | per year |
| myStrom Pro | $9.99 | per year |
| Data Option | $9.99 | per year |
| Home | $24.99 | per year |
| Home Guard – Yearly | $37.99 | per year |


### Flow Test Collector

[App page](https://appshunter.io/ios/app/flow-test-collector/id6755116061)

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

**In-app purchases:** none


## Frequently asked questions

### Is myStrom Mobile free?

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

### Is Flow Test Collector free?

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

### Do myStrom Mobile or Flow Test Collector have ads?

Neither myStrom Mobile nor Flow Test Collector shows ads.

### Which is updated more often, myStrom Mobile or Flow Test Collector?

myStrom Mobile ships an update every 2 weeks, and Flow Test Collector monthly. Most recently, myStrom Mobile was updated on November 10, 2026 and Flow Test Collector on November 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.*