Comparison

Techno System vs Solar PV System Designer

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Techno System

This application assists users in identifying suitable plate heat exchangers for standard civilian uses. It also facilitates contact with technical support for industrial applications and helps locate nearby suppliers. Additional features include a unit converter and a comparison tool for exchangers.

Highlights
  • Identify heat exchangers for civilian applications
  • Contact tech support for industrial applications
  • Find closest supplier
  • Technical measurement unit conversion
  • Compare Techno System exchangers
Features
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Plate Heat Exchangers in civilian and industrial applications Since 1983 Techno System srl produces high-quality plate heat exchangers, according to European norms (PED, CE marking, ASME, etc.). This App helps the user identifying the right product (exchangers, pre-assembled modules) for standard civilian applications, and contacting our tech support for industrial applications. Furthermore our App allows to find the closest supplier in the chosen zone, and has other interesting features like a conversion unit for technical measurements and a comparison table of similar TS exchangers.

About

Solar PV System Designer

Features
Read full description

Solar PV System Designer - Full Description Solar PV System Designer is a comprehensive battery bank configuration tool that takes the guesswork out of designing safe and efficient energy storage systems for your solar PV setup. Simply input the number of batteries you have and their voltage, and the app automatically calculates all possible output voltage configurations based on your available batteries. The intelligent algorithm analyzes series and parallel combinations to show you every safe wiring option. Key Features: Automatic Voltage Calculations - Instantly see all achievable voltage configurations from your battery inventory, whether you need 12V, 24V, 48V, or custom arrangements. Visual Configuration Display - View clear, interactive diagrams showing exactly how batteries should be connected in series and parallel to achieve each voltage option. Safety-First Design - Every configuration is validated to ensure safe operation, preventing dangerous wiring mistakes before they happen. Wire Size Recommendations - Get precise wire gauge recommendations for each configuration, ensuring proper current handling and minimizing voltage drop. Total Capacity Calculations - See the complete watt-hour (Wh) capacity for your entire battery bank across all configurations. Interactive Schematic Generator - Select your desired output voltage and instantly receive a detailed wiring schematic showing exactly how to connect your batteries, complete with wire gauge specifications for each connection. Perfect for DIY solar enthusiasts, off-grid homeowners, and professionals who want to design battery banks quickly, safely, and correctly the first time.

Screenshots

Techno System3 screens
Solar PV System Designer3 screens

Verdict

The call

The clearest difference is update cadence: Solar PV System Designer at weekly against Techno System's every 19 months. Techno System's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

Techno System ships an update every 19 months, Solar PV System Designer weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard2 real differences ยท 6 level
Techno System versus Solar PV System Designer: the parameters behind the verdict, then further details
ParameterTechno SystemSolar PV System Designer
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 19 monthsWeekly โ€” better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeโ€”
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 โ€” better15.0
Further details โ€” not scored
Size10 MB222 MB
Age rating4+4+
DeveloperTNX srlCepoi Mario

In-app purchases

None

Techno System

No in-app purchases

None

Solar PV System Designer

No in-app purchases

Questions

Is Techno System free?
Techno System is free to download, with no in-app purchases.
Is Solar PV System Designer free?
Solar PV System Designer is free to download, with no in-app purchases.
Do Techno System or Solar PV System Designer have ads?
Neither Techno System nor Solar PV System Designer shows ads.
Which is updated more often, Techno System or Solar PV System Designer?
Techno System ships an update every 19 months, and Solar PV System Designer weekly. Most recently, Techno System was updated on October 24, 2026 and Solar PV System Designer on October 25, 2026.

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