# PV Calculator. vs Sunchronize

The clearest difference is in-app purchases: Sunchronize at none against PV Calculator.'s 1. Sunchronize also leads on update cadence (every 3 weeks vs every 7 months). PV Calculator.'s advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. PV Calculator. sells 1 one-off in-app purchase. Sunchronize asks for nothing beyond the download.

PV Calculator. ships an update every 7 months, Sunchronize every 3 weeks. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | PV Calculator. | Sunchronize |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pv-calculator/id6758427564/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 52 MB | 143 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nanjibhai Gorasiya](https://appshunter.io/developer/1834066312) | [Can Pekcan](https://appshunter.io/developer/1884295872) |

## What reviewers say

### PV Calculator.

[App page](https://appshunter.io/ios/app/pv-calculator/id6758427564)

This tool simplifies solar photovoltaic system design and analysis for professionals and students. It offers a comprehensive Energy Hub with multiple calculators, providing instant results, visual charts, and clear insights for efficient PV system planning and optimization.

**Highlights:** Energy Hub with multiple solar calculators, Calculate solar panel power output, Analyze energy generation (daily, monthly, yearly), Design solar array size, Calculate system voltage and configuration, Instant calculation results, Visual charts and performance summaries

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $9.99 | one-time |


### Sunchronize

[App page](https://appshunter.io/ios/app/sunchronize/id6760402542)

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

**In-app purchases:** none


## Frequently asked questions

### Is PV Calculator. free?

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

### Is Sunchronize free?

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

### Do PV Calculator. or Sunchronize have ads?

Neither PV Calculator. nor Sunchronize shows ads.

### Which is updated more often, PV Calculator. or Sunchronize?

PV Calculator. ships an update every 7 months, and Sunchronize every 3 weeks. Most recently, PV Calculator. was updated on October 17, 2026 and Sunchronize on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*