# PV Master - Solar Panel System — Inverter, Battery Calculator

> Solar energy calculator and optimization tool for solar panel systems. (iPhone/iPad app by BigBalli Consulting llc.)

- Source: https://appshunter.io/ios/app/pv-master-solar-panel-system/id396636193 (this page in markdown: same URL + `.md`)
- Developer: [BigBalli Consulting llc](https://appshunter.io/developer/363765325)
- Category: Utilities, Weather
- Price: Free with in-app purchases (on sale, was $4.99)
- Rating: 4.50/5 from 22 App Store ratings · 24 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 25 MB
- Languages: American English
- Released: 2010-10-13
- Data updated: 2026-08-22
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/pv-master-solar-panel-system/id396636193/reviews.md

## What is PV Master?

Thinking about going solar, or trying to get more out of the panels you already have? PV Master turns confusing solar numbers into clear decisions, so you spend less on power and waste less of the sun.

Using just your location, PV Master shows you what your roof can really do, when to rely on your own panels, and when to lean on the grid. Whether you are planning your first system or fine tuning an existing one, you get answers you can act on.

What PV Master helps you do:

Plan with real numbers, not guesses. Get accurate, location based solar data plus a live grid forecast, so you know the best times to use your own power and when cheaper grid power makes sense.

Position your panels for maximum output. The built in compass and tilt tool helps you find the angle that captures the most sun all year long.

Size your system with confidence. Simple calculators work out how much energy you need, how many panels and batteries it takes, and what it will cost, so you can weigh the ROI before you spend a cent.

Get more from every sunny day. Local weather is built in, so you can see how conditions affect production and plan around them.

Learn as you go. Clear guides, FAQs, and a plain language glossary explain every solar and photovoltaic term, so nothing holds you back.

It all lives in one friendly app, from first idea to finished install, with information that is genuinely easy to read.

Download PV Master today and start making smarter, greener energy decisions.

Privacy Policy: https://BigBalli.com/privacy
Terms of Use: http://www.apple.com/legal/itunes/appstore/dev/stdeula

## Key features

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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Full Unlock | $4.99 | per month |
| Yearly | $49.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $59.99 | one-time |
| Location Solar Panel Data | $0.99 | one-time |


## Recent user reviews (10 of 24)

All indexed reviews: https://appshunter.io/ios/app/pv-master-solar-panel-system/id396636193/reviews.md

### 1/5 — 无法运行还要扣款！简直就是强盗！

*2025-04-08*

非常恶心的一款软件，莫名其妙就扣我68元月费，更恶心的是根本无法运行！说你是流氓软件一点也不过分！！！

### 1/5 — Bit of a scam

*2025-01-25*

First message when you try to change location is to pay $.99, not bad but after paying the $.99, which does nothing that the free app doesn’t do then you get a upgrade message for $12.99 a month, not sure what happens if you upgrade to that will it unlock anything or just give a message to upgrade for $24.99. Misleading and disappointing

### 1/5 — Did not work for my application.

*2024-03-05*

App isn’t suitable for small project calculations. The minimum input for daily production is 1 KWH. Being able to input a lesser requirement would be helpful.

### 1/5 — Apple needs to remove this app

*2020-01-01*

Does not work, and appears tha t stopped working in 2018 (as noted in comments below).  Where can I get a refund? 😡

### 1/5 — Ing.

*2018-11-17*

Used to love this app for 6 years, now it stopped working. Totally USELESS. Shame.

### 1/5 — Won’t even find location

*2018-11-06*

Inputted latitude and longitude and then screen stays blank... wast of 9.99 :-(

### 1/5 — Where's all the data gone?

*2017-08-08*

It's vanished! Not a single shred of solar data-one page of data on wind speed and temperature left. Now completely useless. Don't use until fixed

**Developer response:** Hello,
I'm sorry you experienced issues with the app.
Did you enable location services for the app to load all data?

### 5/5 — 软件看起来不错

*2016-05-23*

但是这么贵的软件就不能增加中文吗？看的好费劲还在摸索中！

### 1/5 — PV Master App

*2016-05-04*

This worked for the first week. Then it wouldn't open any more. Total POS!

### 1/5 — Total piece of garbage!!

*2016-01-21*

I bought this app in hopes of having a handy PV calculator or some other resources available on my phone. Piece of crap literally never even opened once!!! Crash. Crash. Crash. Total scam!!!

## Frequently asked questions about PV Master

### What is PV Master used for?

PV Master is a comprehensive tool designed to help users understand and optimize their solar panel systems. It provides accurate solar data, weather integration, and various calculators to assist with planning and decision-making for solar energy.

### Does PV Master offer a free trial?

PV Master is available for free with in-app purchases. The subscription plan, 'Full Unlock', is priced at $9.99 per month, offering full access to its features. There is no mention of a separate free trial period for the subscription.

### How accurate is PV Master's solar data?

PV Master uses your location to provide precise solar information tailored to your specific area, aiming for accuracy in its solar potential insights and data.

### What kind of calculators are available in PV Master?

The app includes comprehensive calculators for desired energy, needed energy, panel requirements, pricing, battery storage, and more, allowing users to estimate and plan their solar energy needs effectively.

### Can PV Master help with panel positioning?

Yes, PV Master features a built-in compass and positioning tool to help users find the optimal angle for their solar panels to maximize efficiency.

### Is PV Master suitable for beginners?

Yes, PV Master is designed to be user-friendly with an intuitive interface, making it accessible for both solar newbies and seasoned professionals. It also includes guides and a glossary to help users understand solar-related terms.

### What devices support PV Master?

PV Master is supported on iPhones and iPads, indicated by its compatibility with Apple's ecosystem.

### How often is PV Master updated?

The latest version of PV Master is 6.5, and it was last updated on April 3, 2026. This suggests a relatively active development cycle for the application.

## Version history (last 5 releases)

### 7.5 — 2026-08-12

New
- Smoother, more polished animations throughout the app, with cards and numbers that transition gracefully.

Improved & Fixed
- Restoring purchases now always confirms the result, so you're never left guessing.

### 7.4 — 2026-06-25

New
- Smoother, more polished animations throughout the app, with cards and numbers that transition gracefully.

Improved & Fixed
- Restoring purchases now always confirms the result, so you're never left guessing.

### 7.3 — 2026-06-16

**New**
- Set up Siri Shortcuts to check your solar info hands-free.

**Improved & Fixed**
- See a clear message and quick retry when an address can't be found.
- Get reliable subscription options right after setup, with retry if they're slow to load.

### 7.2 — 2026-06-16

**New**
- Set up Siri Shortcuts to check your solar info hands-free.

**Improved & Fixed**
- See a clear message and quick retry when an address can't be found.
- Get reliable subscription options right after setup, with retry if they're slow to load.

### 7.1 — 2026-06-04

Improved & Fixed
- The app now greets you with a sunny loading animation the moment it opens, instead of a blank screen.

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All apps by BigBalli Consulting llc: https://appshunter.io/developer/363765325

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-22.*