# PV Calculator Lite Version vs ZenTools

PV Calculator Lite Version and ZenTools are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for PV Calculator Lite Version against 5.0 for ZenTools. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

PV Calculator Lite Version ships an update every 10 days, ZenTools every 3 weeks. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | PV Calculator Lite Version | ZenTools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/pv-calculator-lite-version/id6459019012/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/zentools/id6503634903/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 38 MB | 24 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sven Schwertner](https://appshunter.io/developer/1700478261) | [Zendure USA INC](https://appshunter.io/developer/1592645040) |

## What reviewers say

### PV Calculator Lite Version

[App page](https://appshunter.io/ios/app/pv-calculator-lite-version/id6459019012)

Estimate the potential of solar energy generation at your location. This tool offers detailed calculations for electricity fed into the grid, purchased electricity, annual savings, and payback time. It features site-specific solar irradiance and hourly resolution for accurate production and storage planning.

**Highlights:** Calculate electricity fed into grid and purchased, Estimate annual savings and payback time, Site-specific solar irradiance data, Hourly resolution for production and storage, Define PV modules, inverters, and load profiles, Automatic optimal orientation determination, Roof area measurement and panel positioning

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

**In-app purchases:** none


### ZenTools

[App page](https://appshunter.io/ios/app/zentools/id6503634903)

This industrial productivity app streamlines factory operations and maximizes output for authorized users. It's designed to enhance efficiency and unlock the full potential of manufacturing processes.

**Highlights:** Streamline operations, Maximize output, Enhance efficiency, Empower authorized users, Industrial settings focus

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PV Calculator Lite Version free?

PV Calculator Lite Version is free to download, with no in-app purchases.

### Is ZenTools free?

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

### Which has better reviews, PV Calculator Lite Version or ZenTools?

PV Calculator Lite Version and ZenTools are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do PV Calculator Lite Version or ZenTools have ads?

Neither PV Calculator Lite Version nor ZenTools shows ads.

### Which is updated more often, PV Calculator Lite Version or ZenTools?

PV Calculator Lite Version ships an update every 10 days, and ZenTools every 3 weeks. Most recently, PV Calculator Lite Version was updated on October 13, 2026 and ZenTools on October 15, 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.*