Solar Calibrator vs HTMLRemote
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solar Calibrator
This professional toolkit helps PV installers precisely calibrate panel angles, size battery banks and wire gauges, and generate PDF quotes. It includes tools for obstruction analysis and load auditing, all accessible offline.
- Solar compass and tilt angle calibration
- Battery and inverter sizing
- Wire gauge calculation
- Load audit and quote builder
- PV array and string sizing
- Obstruction analysis
- Offline functionality
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Solar Calibrator is a field toolkit for solar installers and serious DIYers. Set the tilt and direction, size the array, battery bank and cables, check strings and shading, then hand the customer a PDF quote, all from one app. One purchase. No ads, no subscription, no account. TILT ANGLE Lay your phone on the panel and use it as a digital level. Get the best year-round angle for your latitude from published formulas, plus seasonal angles for summer and winter, and which way the panels should face. ORIENTATION A smooth, damped compass that tells you when the array faces the equator: south in the northern hemisphere, north in the southern. PV ARRAY SIZING Enter monthly usage in kWh and the share of the bill you want to offset. Peak sun hours are estimated from your GPS location, so there is nothing to look up. You get system size in kW, number of panels and roof area needed. BATTERY BANK Size off-grid and backup storage from monthly usage, backup hours and system voltage. Lithium or lead-acid, with depth of discharge and efficiency built in. WIRE GAUGE Get the right cable size, in AWG and mm², from current, run length and system voltage, for copper or aluminum. It checks both current capacity and voltage drop, and tells you which one set the size. STRING SIZING Find the maximum panels in series without exceeding the inverter's voltage limit on the coldest morning, using panel Voc and temperature coefficient. Add Vmp and the MPPT minimum to get a full min–max range for hot days too. LOAD AUDIT List appliances with quick-add presets and realistic hours per day to get total daily consumption before you size anything. SHADING CHECK Enter the height of a tree or building and its distance to see whether it will shade the panels at the winter solstice, when the sun is lowest. QUOTES Build a customer quote on site: • Search a catalog of common solar parts or reuse recent items with their last price • Hardware and Other sections, with labor as a fixed amount or a % of hardware • Save quotes and reopen them later • Export a clean, professional PDF named after the customer and date BUILT FOR THE JOB • Every result shows the working behind the number • Export any calculation as a PDF report • Currency set from your region, or choose your own • 7 languages: English, Arabic, Hindi, Urdu, Spanish, French and Uzbek, with full right-to-left support • Dark mode for bright sun and dim attics Results are estimates for planning. Always follow local electrical codes and the equipment manufacturer's specifications.
HTMLRemote
This app allows you to create custom HTML-based interfaces to control your devices over a local network. It acts as an HTTP server, hosting your designs for seamless integration with TCP/IP communication.
- Local HTTP server for device control
- TCP/IP protocol integration
- Personalized web-based GUI
- Design and debug with Safari Web Inspector
- Expandable control center
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HTMLRemote: Empower Device Control with Your Custom HTML GUI Key Features: - Acts as a local HTTP server, hosting your GUI as a localhost for seamless device control. - Seamlessly integrates with the TCP/IP protocol for flexible communication. - Easily integrate your personalized web-based GUI. - Use Safari Web Inspector (iOS > 16.3) or HTMLRemote on various platforms for effortless design and debugging. How to Use: 1- Design your HTML GUI with the javascript executecommand function. 2- Upload your HTML to your preferred server. 3- Fill in the URL in the HTMLRemote settings on your iOS device. Expand Your Control Center: As your device system grows, HTMLRemote lets you effortlessly expand your control center, adapting your HTML GUI to accommodate new devices. Revolutionize your LAN device control with HTMLRemote: Experience the freedom of personalized control and elevate your home automation or network management to new heights. Download now and make your HTML GUI the command center for all your connected devices!
Screenshots
Verdict
The clearest difference is price: Solar Calibrator at $9.99 against HTMLRemote's $19.99. Solar Calibrator also leads on rating (5.0 vs 3.0). HTMLRemote's advantage is update cadence (every 3 days vs every 10 months) and iOS requirement (12.0 vs 15.1). On ratings volume, ads, in-app purchases and monetization model 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
Solar Calibrator costs $9.99 and HTMLRemote $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Solar Calibrator holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
Solar Calibrator ships an update every 10 months, HTMLRemote every 3 days. The most recent releases landed on November 14, 2026 and November 4, 2026 respectively.
| Parameter | Solar Calibrator | HTMLRemote |
|---|---|---|
| Price | $9.99 — better | $19.99 |
| Rating | 5.0 (2 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 2 |
| Update frequency | Every 10 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 12.0 — better |
| Further details — not scored | ||
| Size | 40 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Fawzi Fakhro | NV Verdegem |
Customer experience
Solar Calibrator
HTMLRemote
In-app purchases
Solar Calibrator
No in-app purchases
HTMLRemote
No in-app purchases
Questions
Is Solar Calibrator free?
Is HTMLRemote free?
Which has better reviews, Solar Calibrator or HTMLRemote?
Do Solar Calibrator or HTMLRemote have ads?
Which is updated more often, Solar Calibrator or HTMLRemote?
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