Comparison

ConvertALL Unit Converter vs Home Solar System

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

Head to head
About

ConvertALL Unit Converter

Features
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Why Ultimate Unit Converter? OFFLINE and LIFETIME Stop paying monthly subscriptions for simple tools. Ultimate Unit Converter is the premium, all-in-one solution for professionals, engineers, and everyday users—yours forever with a single, one-time purchase. No hidden fees, no recurring costs. All works offline. Designed for iPhone and iPad One of the most versatile and complete converter apps on the market. Ultimate Converter combines engineering precision, aviation-grade reliability, and everyday utility into one seamless experience. Whether you are an engineer analyzing fluid dynamics, a pilot calculating fuel loads, or a traveler shopping for clothes abroad, we have built the specialized tools you need. WHAT YOU CAN DO: Advanced Engineering Suite Go beyond basic units. We have expanded our library to support serious technical work. Handle complex fluid dynamics with dedicated Flow Rate, Viscosity, and Density tools. Tackle mechanical problems with precise Torque, Force, and Acceleration converters. For the tech-savvy, we provide essential Data Speed (Internet), Frequency, Current, and Radiation conversions needed for academic and professional projects. Professional Aviation Toolkit A specialized mode trusted by pilots and ground crew. Perform critical Volume/Weight conversions for JET A/A1, AVGAS, and Oil. Unlike standard apps, we give you the power to interactively adjust density (kg/L) factors, ensuring your calculations match real-world flight conditions perfectly. Global Shopping Companion Never guess your fit again. Our integrated sizing charts instantly convert sizes for Shoes, Tops, and Pants across US, EU, UK, JP, CN, and MEX standards. Perfect for online shopping or international travel. Everyday Essentials We haven't forgotten the basics. Access fast and reliable conversions for Length, Area, Temperature, Pressure, Power, Energy, and Time. Plus, utilize advanced mathematical tools for Angles and Number Systems (Binary, Hex, Decimal). Simplify your complex calculations. Download Ultimate Unit Converter today!

About

Home Solar System

Features
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Welcome to Home Solar System, featuring our exclusive Solar Smash technology—the definitive tool for optimizing solar energy systems before the first panel is even installed. Our app simplifies the complex process of designing rooftop solar arrays by combining advanced geospatial data with intuitive engineering tools to smash through inefficiency and maximize your energy yield. SUBSCRIPTION REQUIRED Please note: Home Solar System requires a paid auto-renewable subscription to access its core features and tools. Free app downloads do not include full access without an active subscription. What We Do: Home Solar System allows users to create high-precision layouts for solar panels directly on digital roof models. By integrating real-time sunlight trajectory and local weather data, the app calculates the exact energy potential of any surface. Key Features (Requires Active Subscription): Intelligent Solar Tracking: Analyze the sun’s path throughout the year to identify "sweet spots" on any roof, ensuring maximum exposure. The "Solar Smash" Advantage: Eliminate design inefficiencies and optimize energy yield to maximize return on investment. Efficiency Analytics: Instant calculations on projected energy yield, performance ratios, and potential ROI based on panel models and tilt angles. Custom Project Design: Drag, drop, and rotate panels to fit unique architectural constraints while automatically avoiding shaded areas. Automated Reporting: Generate comprehensive PDF proposals including 3D visualizations, material lists, and estimated carbon savings. Subscription & Purchase Details: Access Model: All features (3D design tools, solar tracking algorithms, ROI calculations, and PDF reporting) are unlocked via a weekly, monthly, or annual subscription. Payment: Payment will be charged to your Apple ID Account at confirmation of purchase. Auto-Renewal: Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Management: You can manage and cancel your subscriptions by going to your App Store Account Settings after purchase. Whether you are a professional installer looking to streamline your workflow or a homeowner planning your transition to clean energy, Home Solar System provides the data-driven confidence you need to go solar. Empower your roof. Maximize your energy. Build the future. Legal Links: Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ConvertALL Unit Converter4 screens
Home Solar System4 screens

Verdict

The call

The clearest difference is update cadence: Home Solar System at every 5 days against ConvertALL Unit Converter's monthly. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ConvertALL Unit Converter sells 1 one-off in-app purchase and Home Solar System sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ConvertALL Unit Converter ships an update monthly, Home Solar System every 5 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 5 level
ConvertALL Unit Converter versus Home Solar System: the parameters behind the verdict, then further details
ParameterConvertALL Unit ConverterHome Solar System
PriceFreeFree
Update frequencyMonthlyEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.6
Further details — not scored
Size24 MB11 MB
Age rating4+4+
DeveloperAYLIN BICENSavio Colombo

In-app purchases

1 purchases

ConvertALL Unit Converter

One-time1
  • converterpro$4.99
2 purchases

Home Solar System

Subscriptions2
  • Monthly Subscription$4.991 Month
  • Yearly Subscription3 Days trial$39.991 Year

Questions

Is ConvertALL Unit Converter free?
ConvertALL Unit Converter is free to download, with in-app purchases available.
Is Home Solar System free?
Home Solar System is free to download, with in-app purchases available.
Do ConvertALL Unit Converter or Home Solar System have ads?
Neither ConvertALL Unit Converter nor Home Solar System shows ads.
Which is updated more often, ConvertALL Unit Converter or Home Solar System?
ConvertALL Unit Converter ships an update monthly, and Home Solar System every 5 days. Most recently, ConvertALL Unit Converter was updated on October 30, 2026 and Home Solar System on October 31, 2026.

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