# My Solar vs Mountfield.GO

The clearest difference is price: Mountfield.GO at Free against My Solar's $2.99. Mountfield.GO also leads on in-app purchases (none vs 1) and iOS requirement (13.0 vs 16.0). My Solar's advantage is update cadence (every 6 weeks vs every 4 months). On ads and device support there is nothing between them.

Mountfield.GO is free to download; My Solar costs $2.99 up front. My Solar sells 1 one-off in-app purchase. Mountfield.GO asks for nothing beyond the download.

My Solar ships an update every 6 weeks, Mountfield.GO every 4 months. The most recent releases landed on September 7, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | My Solar | Mountfield.GO |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 160 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Richard Levy](https://appshunter.io/developer/923424693) | [STIGA S.p.A.](https://appshunter.io/developer/1101072795) |

## What reviewers say

### My Solar

[App page](https://appshunter.io/ios/app/my-solar/id1672866749)

Access real-time statistics for your home solar installation, including power generation, battery, and grid usage. View data via widgets, notifications, and Siri. Control charge/discharge settings and sync inverter time.

**Highlights:** Real-time solar generation stats, Home and lock screen widgets, Apple Watch complications, Siri integration, Battery and grid usage monitoring, Inverter charge/discharge control, Inverter clock synchronization

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Inverter Charge/Discharge | $2.99 | one-time |


### Mountfield.GO

[App page](https://appshunter.io/ios/app/mountfieldgo/id6478109263)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is My Solar free?

My Solar costs $2.99, and also offers in-app purchases.

### Is Mountfield.GO free?

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

### Do My Solar or Mountfield.GO have ads?

Neither My Solar nor Mountfield.GO shows ads.

### Which is updated more often, My Solar or Mountfield.GO?

My Solar ships an update every 6 weeks, and Mountfield.GO every 4 months. Most recently, My Solar was updated on September 7, 2026 and Mountfield.GO on August 27, 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.*