# PV Solar Forecast vs Clarity

The clearest difference is ads: Clarity at none against PV Solar Forecast's shown. Clarity also leads on update cadence (every 2 days vs every 3 months). PV Solar Forecast's advantage is iOS requirement (13.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. PV Solar Forecast sells 2 in-app purchases, starting at $9.99 per month and Clarity sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

PV Solar Forecast ships an update every 3 months, Clarity every 2 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PV Solar Forecast | Clarity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (43 ratings)](https://appshunter.io/ios/app/pv-solar-forecast/id1496274910/reviews)** | — |
| Number of ratings | **43** | — |
| Positive reviews | 21.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 46 MB | 22 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Igor Ilijovski](https://appshunter.io/developer/1492982127) | [Moon Shard Ltd](https://appshunter.io/developer/1892102269) |

## What reviewers say

### PV Solar Forecast

[App page](https://appshunter.io/ios/app/pv-solar-forecast/id1496274910)

Predict your solar power generation for up to 360 hours and 15 days ahead. This tool helps you save energy and money by planning appliance usage, EV charging, and understanding your system's output. It also provides detailed weather forecasts and data export options.

**Highlights:** 360-hour solar production forecast, 15-day daily solar production forecast, 12-month monthly generation forecasts, CSV data export, Current power estimation, Global location forecasting, Hourly weather forecast

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all features | $9.99 | per month |
| Unlock all features | $39.99 | per year |


### Clarity

[App page](https://appshunter.io/ios/app/clarity-second-brain-and-notes/id6788356314)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Clarity Plus Monthly | $4.99 | per month |
| Clarity Plus | $39.99 | per year |


## Frequently asked questions

### Is PV Solar Forecast free?

PV Solar Forecast is free to download, with in-app purchases available.

### Is Clarity free?

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

### Do PV Solar Forecast or Clarity have ads?

PV Solar Forecast shows ads; Clarity does not.

### Which is updated more often, PV Solar Forecast or Clarity?

PV Solar Forecast ships an update every 3 months, and Clarity every 2 days. Most recently, PV Solar Forecast was updated on November 7, 2026 and Clarity 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.*