# SWTracker vs PV Calculator.

The clearest difference is in-app purchases: SWTracker at none against PV Calculator.'s 1. SWTracker also leads on update cadence (every 8 days vs every 7 months). PV Calculator.'s advantage is iOS requirement (13.0 vs 16.6). 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. SWTracker asks for nothing beyond the download.

SWTracker ships an update every 8 days, PV Calculator. every 7 months. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | SWTracker | PV Calculator. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pv-calculator/id6758427564/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 7 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 97 MB | 52 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kevin Obermann](https://appshunter.io/developer/413284681) | [Nanjibhai Gorasiya](https://appshunter.io/developer/1834066312) |

## What reviewers say

### SWTracker

[App page](https://appshunter.io/ios/app/swtracker/id1486087332)

Track the location of vehicles, construction machinery, and pets in real-time. View recent events, monitor working hours, and receive push notifications for important updates. Features BLE and beacon technology for finding items and displays beacon temperature and battery status.

**Highlights:** Real-time vehicle and asset tracking, Location history and event logs, Employee working hours monitoring, BLE and beacon finding technology, Beacon temperature and battery status, Push notifications for events, Secure in-app chat

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

**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 SWTracker free?

SWTracker 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 SWTracker or PV Calculator. have ads?

Neither SWTracker nor PV Calculator. shows ads.

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

SWTracker ships an update every 8 days, and PV Calculator. every 7 months. Most recently, SWTracker was updated on October 7, 2026 and PV Calculator. on October 17, 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.*