PV Calculator Lite Version vs ZenTools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PV Calculator Lite Version
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.
- 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
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It is important to present the potential of renewable energy generation in a simple and clear way for everyone. Get an idea of the potential of photovoltaic power generation at your site. languages: english, german What makes this app stand out from others * Typical meteorological year (TMY) as radiation data at your site * Hourly resolution allows an accurate view of production and battery storage throughout the day * Individual load profiles allow a design adapted to your consumer behavior * Roof area measurement and panel positioning allow realistic planning PV Calculator Lite Features - Calculate the amount of electricity fed into the grid and purchased - Calculate your annual savings and payback time - Site specific solar irradiance - Hourly resolution - Define your PV-Modules and power inverter - Automatic determination of optimal orientation - Define your energy demand and daily load profile - Sizing of your battery storage - Roof area measurement and panel positioning This app is Ad-free. Premium Version Features - Historical radiation data from 2005-2021 - Create multiple projects - Import/ export projects or share with friends - Consider Snowfall - Consider shading - Create your own individual load profile - Create an unlimited number of PV arrays - Export your results as Excel sheet
ZenTools
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.
- Streamline operations
- Maximize output
- Enhance efficiency
- Empower authorized users
- Industrial settings focus
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Unlock the true potential of your factory with Zendure Tools, the cutting-edge app designed to elevate efficiency and empower authorized users. Tailored for industrial settings, Zendure Tools is a game-changer in streamlining operations and maximizing output.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | PV Calculator Lite Version | ZenTools |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 10 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 24 MB |
| Age rating | 4+ | 17+ |
| Developer | Sven Schwertner | Zendure USA INC |
Customer experience
PV Calculator Lite Version
ZenTools
In-app purchases
PV Calculator Lite Version
No in-app purchases
ZenTools
No in-app purchases
Questions
Is PV Calculator Lite Version free?
Is ZenTools free?
Which has better reviews, PV Calculator Lite Version or ZenTools?
Do PV Calculator Lite Version or ZenTools have ads?
Which is updated more often, PV Calculator Lite Version or ZenTools?
Other comparisons
