Solar Calibrator vs Cove Angle
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
Read full descriptionHide full description
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.
Cove Angle
This app simplifies complex calculations by automatically crunching numbers and saving your past results. Easily access and reapply previous calculations, and switch between metric and standard units. Syncs across devices with iCloud.
- Automatic number crunching
- Save past calculations
- Cross-device iCloud sync
- Delete and reapply calculations
- Metric and standard unit switching
Read full descriptionHide full description
Cove Angle is a purpose-built calculator for woodworkers who cut coves on the table saw. Enter your blade diameter, kerf, cove width, depth, and optional blade tilt, and Cove Angle quickly calculates the fence angle you need. A live profile preview helps you sanity-check the shape before you cut, while built-in limits help keep your setup within realistic blade geometry. Whether you work in SAE or metric, Cove Angle keeps the math out of the way so you can focus on the cut. Features: Calculate fence angles for table saw cove cuts Support for blade tilt, including positive and negative tilt setups Live visual profile preview SAE and metric unit support Adjustable angle precision Save and revisit previous setups Quick history recall for repeat cuts Clean, workshop-friendly interface Cove Angle is designed for speed, clarity, and repeatability when dialing in cove-cut setups.
Screenshots
Verdict
The clearest difference is price: Cove Angle at Free against Solar Calibrator's $9.99. Solar Calibrator's advantage is update cadence (every 10 months vs every 30 months) and iOS requirement (15.1 vs 17.2). On rating, ratings volume, ads and in-app purchases 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
Cove Angle is free to download; Solar Calibrator costs $9.99 up front. 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 Solar Calibrator against 5.0 for Cove Angle. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Solar Calibrator ships an update every 10 months, Cove Angle every 30 months. The most recent releases landed on November 12, 2026 and November 4, 2026 respectively.
| Parameter | Solar Calibrator | Cove Angle |
|---|---|---|
| Price | $9.99 | Free — better |
| 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 months — better | Every 30 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, Mac |
| Requires iOS | 15.1 — better | 17.2 |
| Further details — not scored | ||
| Size | 40 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Fawzi Fakhro | Red Trillium Studios Ltd |
Customer experience
Solar Calibrator
Cove Angle
In-app purchases
Solar Calibrator
No in-app purchases
Cove Angle
No in-app purchases
Questions
Is Solar Calibrator free?
Is Cove Angle free?
Which has better reviews, Solar Calibrator or Cove Angle?
Do Solar Calibrator or Cove Angle have ads?
Which is updated more often, Solar Calibrator or Cove Angle?
Other comparisons















