# Shini Auth vs PV Calculator.

The clearest difference is in-app purchases: Shini Auth at none against PV Calculator.'s 1. On price, update cadence, ads and device support there is nothing between them.

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

Shini Auth ships an update every 4 months, PV Calculator. every 7 months. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Shini Auth | PV Calculator. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pv-calculator/id6758427564/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Monetization | — | Free with in-app purchases |
| Size | 31 MB | 52 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Al Shin Supermarket](https://appshunter.io/developer/1551204639) | [Nanjibhai Gorasiya](https://appshunter.io/developer/1834066312) |

## What reviewers say

### Shini Auth

[App page](https://appshunter.io/ios/app/shini-auth/id1631118440)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Shini Auth free?

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

### Is PV Calculator. free?

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

### Do Shini Auth or PV Calculator. have ads?

Neither Shini Auth nor PV Calculator. shows ads.

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

Shini Auth ships an update every 4 months, and PV Calculator. every 7 months. Most recently, Shini Auth was updated on November 7, 2026 and PV Calculator. on November 5, 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.*