Comparison

Watchla for Tesla vs Electrical Calculator

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

Head to head
About

Watchla for Tesla

Control your Tesla directly from your Apple Watch with this app. It offers remote access, real-time vehicle data, and the ability to use your watch as a Bluetooth key, even offline. Customize commands and shortcuts for a seamless experience.

Highlights
  • Full Tesla control from Apple Watch
  • Use Apple Watch as Bluetooth Tesla Key
  • Offline vehicle control
  • Real-time vehicle data display
  • Perform vehicle commands
  • Apple Watch complications
  • Siri Shortcuts support
Features
Read full description

Watchla delivers full control of your Tesla to the convenience of your wrist. With a beautiful, clean & effective UI, Watchla is an Apple Watch app for Tesla that aims to replace your phone for most of your remote access needs with your Tesla. No more pulling your phone out of your pocket every time you want to check on your Tesla or tell it to do something. With Watchla all you have to do is raise your wrist to start interacting with your Tesla. Watchla, being a fully capable Tesla watch app, can: - Connect to your Tesla over Bluetooth - Enable your Apple Watch to become a Bluetooth Tesla Key for your Tesla - Control your Tesla while offline - Show you real-time data about your Tesla like charge state, climate state, door closures & more, even while offline - Perform vehicle commands While also supporting: - Apple Watch complications to keep you up to date with your Tesla right from your watch face - Siri Shortcuts (available on Apple Watch) - Custom command layouts - Remote start - Multiple Tesla vehicles - Remote door unlatch, for all doors (subject to vehicle compatibility) + much more! Watchla is also supported by a robust iOS companion app that you can use to easily configure the watch app and manage your Watchla experience, including: - customize watch app command layout - add & customize Siri Shortcuts - switch selected Tesla - manage preferences (including watch app preferences) - manage vehicle-interaction settings + much more & more to come! In addition, the Watchla team is always listening. Request a feature for Watchla here: https://watchla.app/feedback/#req-new-feature Disclaimer: Watchla is not owned or endorsed by Tesla Inc. Watchla utilizes Tesla’s Bluetooth protocol to safely & securely provide you with remote access to your Tesla from your Apple Watch. The Watchla Apple watch app is an independent watch app and (aside from initially adding your vehicles) doesn't need its iOS companion app to perform normally. Bluetooth functionality, including Watch Key, will continue to work without internet. Using Bluetooth and Tesla Key functionality is subject to vehicle compatibility. TLDR; yes, you can use a Wi-Fi only Apple Watch to control your Tesla without your phone nearby if your Tesla is included in the list below :) Tesla vehicles compatible with Bluetooth & Tesla Apple Watch Key support: - Model 3 - Model Ys - Cybertruck - Model S (year 2021 or newer) - Model X (year 2021 or newer) Download Watchla, the ultimate Tesla watch app and experience total control over your Tesla, from the convenience of your wrist. Made in Colorado

About

Electrical Calculator

Features
Read full description

Filling out a panel schedule and need to check if total connected load passes the NEC 80% continuous load rule? Add your circuits, see kW totals, and get an instant panel utilization percentage — before the inspector shows up. Add circuits with name, voltage, phase, and amperage. The app calculates each circuit's watt load, tracks total connected load, and checks the 80% continuous load rule against your panel rating. WHAT IT CALCULATES: - Total connected load in W and kW - Per-circuit watt load from volts, amps, and phase - Panel utilization percentage with color-coded status - Total amperage at your panel voltage - Overload warning when utilization passes 80% VOLTAGE CONFIGURATIONS: - 120V, 208V, 240V, 277V, 480V - Single phase and three phase KEY FEATURES: - Editable panel schedule with swipe-to-delete and Clear All - NEC 80% continuous load rule check against your main breaker - Enter any main breaker amperage and panel voltage - Watt totals per circuit, W/kW total for the panel - Works completely offline Built for licensed electricians, electrical engineers, and building inspectors.

Screenshots

Watchla for Tesla4 screens
Electrical Calculator2 screens

Verdict

The call

The clearest difference is price: Watchla for Tesla at Free against Electrical Calculator's $4.99. Watchla for Tesla also leads on update cadence (every 9 days vs every 2 months). Electrical Calculator's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement 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

Watchla for Tesla is free to download; Electrical Calculator costs $4.99 up front. Watchla for Tesla sells 3 in-app purchases, starting at $0.99 per 7 days. Electrical Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Watchla for Tesla ships an update every 9 days, Electrical Calculator every 2 months. The most recent releases landed on October 23, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Watchla for Tesla versus Electrical Calculator: the parameters behind the verdict, then further details
ParameterWatchla for TeslaElectrical Calculator
PriceFree — better$4.99
Rating4.1 (1.6K ratings) — better—
Positive reviews33.7% of reviews—
Number of ratings1.6K — better—
Update frequencyEvery 9 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, Apple WatchiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size216 MB1 MB
Age rating4+4+
DeveloperVillegas Ventures LLCShanghai Sheyuan Network Technology Co., Ltd.

Bugs and requests

Watchla for Tesla

Reported bugs

5 issues
  • App crashes after recent Tesla API updates
  • Watch app disappearing from device
  • Charge status and mileage not updating correctly
  • Inability to re-authenticate after token expiration
  • Incompatibility with certain Tesla models

Requested features

5 requests
  • Ability to switch between multiple vehicles
  • More customization options for watch complications
  • Improved Siri integration and voice command support
  • Faster Bluetooth connection and response times
  • Better error handling and feedback

Electrical Calculator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Watchla for Tesla

Subscriptions3
  • Watchla Pro - Weekly Sub.3 Days trial$0.997 Days
  • Watchla Pro - Monthly Sub.3 Days trial$1.991 Month
  • Watchla Pro - Annual Sub.3 Days trial$17.991 Year
None

Electrical Calculator

No in-app purchases

Questions

Is Watchla for Tesla free?
Watchla for Tesla is free to download, with in-app purchases available.
Is Electrical Calculator free?
Electrical Calculator costs $4.99, with no in-app purchases.
Do Watchla for Tesla or Electrical Calculator have ads?
Neither Watchla for Tesla nor Electrical Calculator shows ads.
Which is updated more often, Watchla for Tesla or Electrical Calculator?
Watchla for Tesla ships an update every 9 days, and Electrical Calculator every 2 months. Most recently, Watchla for Tesla was updated on October 23, 2026 and Electrical Calculator on October 31, 2026.

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