# PV Master vs RIO Data View

The clearest difference is in-app purchases: RIO Data View at none against PV Master's 4. RIO Data View also leads on iOS requirement (14.5 vs 17.0). PV Master's advantage is update cadence (every 8 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. PV Master sells 4 in-app purchases, starting at $4.99 per month. RIO Data View asks for nothing beyond the download.

PV Master ships an update every 8 days, RIO Data View every 3 months. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | PV Master | RIO Data View |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (23 ratings)](https://appshunter.io/ios/app/pv-master-solar-panel-system/id396636193/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 17.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 4 MB |
| Requires iOS | 17.0 | **14.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BigBalli Consulting llc](https://appshunter.io/developer/363765325) | [Japan Vacuum Instruments Ltd.](https://appshunter.io/developer/556391381) |

## What reviewers say

### PV Master

[App page](https://appshunter.io/ios/app/pv-master-solar-panel-system/id396636193)

This app helps you harness solar energy by providing accurate solar data, weather integration, and tools to optimize your solar panel setup. It offers comprehensive calculators for energy needs, panel requirements, and battery storage, along with guides and a glossary for informed decisions.

**Highlights:** Accurate solar data based on location, Weather data integration, Solar potential insights, Panel positioning tool, Comprehensive energy calculators, Guides, FAQs, and glossary

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Unlock | $4.99 | per month |
| Yearly | $49.99 | per year |
| Location Solar Panel Data | $0.99 | one-time |
| Lifetime | $59.99 | one-time |


### RIO Data View

[App page](https://appshunter.io/ios/app/rio-data-view/id1325922186)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PV Master free?

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

### Is RIO Data View free?

RIO Data View is free to download, with no in-app purchases.

### Do PV Master or RIO Data View have ads?

Neither PV Master nor RIO Data View shows ads.

### Which is updated more often, PV Master or RIO Data View?

PV Master ships an update every 8 days, and RIO Data View every 3 months. Most recently, PV Master was updated on October 3, 2026 and RIO Data View on October 6, 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.*