# M2K vs Austa

The clearest difference is update cadence: Austa at every 3 weeks against M2K's every 66 months. M2K's advantage is iOS requirement (10.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

M2K ships an update every 66 months, Austa every 3 weeks. The most recent releases landed on October 2, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | M2K | Austa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/austa/id1673126471/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 66 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 8 MB | 57 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [剑 熊](https://appshunter.io/developer/820792877) | [Northern Electric & Power Inc](https://appshunter.io/developer/1202736933) |

## What reviewers say

### M2K

[App page](https://appshunter.io/ios/app/m2k/id833352090)

**Features:** macOS Compatibility

**In-app purchases:** none


### Austa

[App page](https://appshunter.io/ios/app/austa/id1673126471)

Monitor your micro inverter solar power system's performance. Track energy production, view historical data, and receive alerts for any issues. Optimize your solar energy usage with this utility app.

**Highlights:** Monitor micro inverter solar systems, Track energy production, View historical data, Receive alerts for issues, Optimize solar energy usage

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is M2K free?

M2K is free to download, with no in-app purchases.

### Is Austa free?

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

### Do M2K or Austa have ads?

Neither M2K nor Austa shows ads.

### Which is updated more often, M2K or Austa?

M2K ships an update every 66 months, and Austa every 3 weeks. Most recently, M2K was updated on October 2, 2026 and Austa on September 26, 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.*