PV Calculator Lite Version vs Namp
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
Read full descriptionHide full description
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
Namp
Read full descriptionHide full description
Namp is an easy and convenient collaboration tool for sharing, tracking, and managing various project statuses. > From personal side projects to collaborative team efforts and corporate workflows, it allows you to track the progress of every issue at a glance and communicate seamlessly. Furthermore, it integrates with AI tools like Claude and Cursor, enabling you to streamline your workflow using AI. With support for both mobile apps and PC web, you can conveniently access and manage your work anytime, anywhere
Screenshots
Verdict
The clearest difference is update cadence: PV Calculator Lite Version at every 10 days against Namp's every 2 months. PV Calculator Lite Version also leads on iOS requirement (13.4 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.
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.
PV Calculator Lite Version ships an update every 10 days, Namp every 2 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | PV Calculator Lite Version | Namp |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 10 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.4 — better | 15.1 |
| Further details — not scored | ||
| Size | 38 MB | 37 MB |
| Age rating | 4+ | 17+ |
| Developer | Sven Schwertner | Springs Co., Ltd. |
In-app purchases
PV Calculator Lite Version
No in-app purchases
Namp
No in-app purchases
Questions
Is PV Calculator Lite Version free?
Is Namp free?
Do PV Calculator Lite Version or Namp have ads?
Which is updated more often, PV Calculator Lite Version or Namp?
Other comparisons
