# PV Master vs Enegrin

The clearest difference is in-app purchases: Enegrin at none against PV Master's 4. Enegrin also leads on iOS requirement (15.0 vs 17.0). PV Master's advantage is update cadence (every 8 days vs every 19 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. Enegrin asks for nothing beyond the download.

PV Master ships an update every 8 days, Enegrin every 19 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | PV Master | Enegrin |
| --- | --- | --- |
| 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 19 months |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 37 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BigBalli Consulting llc](https://appshunter.io/developer/363765325) | [CIDTcor](https://appshunter.io/developer/1445069474) |

## 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 |


### Enegrin

[App page](https://appshunter.io/ios/app/enegrin/id6463267797)

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

**In-app purchases:** none


## Frequently asked questions

### Is PV Master free?

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

### Is Enegrin free?

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

### Do PV Master or Enegrin have ads?

Neither PV Master nor Enegrin shows ads.

### Which is updated more often, PV Master or Enegrin?

PV Master ships an update every 8 days, and Enegrin every 19 months. Most recently, PV Master was updated on November 1, 2026 and Enegrin on October 30, 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.*