# PV Master vs SELLERTOOL

The clearest difference is in-app purchases: SELLERTOOL at none against PV Master's 4. SELLERTOOL also leads on iOS requirement (11.0 vs 17.0). On price, update cadence, 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. SELLERTOOL asks for nothing beyond the download.

PV Master ships an update every 8 days, SELLERTOOL fortnightly. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | PV Master | SELLERTOOL |
| --- | --- | --- |
| 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** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 50 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [BigBalli Consulting llc](https://appshunter.io/developer/363765325) | [广州量岛信息科技有限公司](https://appshunter.io/developer/1711066823) |

## 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 |


### SELLERTOOL

[App page](https://appshunter.io/ios/app/sellertool/id6449766589)

**In-app purchases:** none


## Frequently asked questions

### Is PV Master free?

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

### Is SELLERTOOL free?

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

### Do PV Master or SELLERTOOL have ads?

Neither PV Master nor SELLERTOOL shows ads.

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

PV Master ships an update every 8 days, and SELLERTOOL fortnightly. Most recently, PV Master was updated on October 16, 2026 and SELLERTOOL on October 10, 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.*