# PVstats Pro vs Tagaeff Solar Forecaster

The clearest difference is in-app purchases: PVstats Pro at none against Tagaeff Solar Forecaster's 2. Tagaeff Solar Forecaster's advantage is update cadence (every 8 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Tagaeff Solar Forecaster sells 2 in-app purchases, starting at $3.99 per month. PVstats Pro asks for nothing beyond the download.

PVstats Pro ships an update every 2 months, Tagaeff Solar Forecaster every 8 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PVstats Pro | Tagaeff Solar Forecaster |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Free | — |
| Size | 10 MB | 6 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tobias Stoger](https://appshunter.io/developer/1798727196) | [Marsel Tagaev](https://appshunter.io/developer/1832147875) |

## What reviewers say

### PVstats Pro

[App page](https://appshunter.io/ios/app/pvstats-pro/id6470289888)

Monitor your photovoltaic system's performance directly from your device. View real-time PV power, consumption, battery status, and grid feed-in/draw. Supports Siri voice commands and home screen widgets.

**Highlights:** Real-time PV performance monitoring, Battery storage status, Grid feed-in and draw tracking, Home and lock screen widgets, Siri voice control, MQTT and Fronius Gen24 API support

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

**In-app purchases:** none


### Tagaeff Solar Forecaster

[App page](https://appshunter.io/ios/app/tagaeff-solar-forecaster/id6767835704)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Solar Forecast Pro Annual | $3.99 | per month |
| Solar Forecast PRO | $29.99 | per year |


## Frequently asked questions

### Is PVstats Pro free?

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

### Is Tagaeff Solar Forecaster free?

Tagaeff Solar Forecaster is free to download, with in-app purchases available.

### Do PVstats Pro or Tagaeff Solar Forecaster have ads?

Neither PVstats Pro nor Tagaeff Solar Forecaster shows ads.

### Which is updated more often, PVstats Pro or Tagaeff Solar Forecaster?

PVstats Pro ships an update every 2 months, and Tagaeff Solar Forecaster every 8 days. Most recently, PVstats Pro was updated on November 3, 2026 and Tagaeff Solar Forecaster on October 31, 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.*