Comparison

ConvertMyUnits vs Worthless Controls

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

Head to head
About

ConvertMyUnits

This app provides instant unit conversions for a wide range of everyday measurements. Results update live as you type, making comparisons quick and easy. It works offline and offers features like copying, sharing, and recent conversions.

Highlights
  • Offline functionality
  • Live conversions while typing
  • Supports numerous measurement categories
  • Swap units instantly
  • Copy, paste, and share values
  • Recent conversions history
  • Light and dark mode
Features
Read full description

ConvertMyUnits is a simple, fast, offline unit converter for everyday measurements. Convert length, area, volume, mass, temperature, time, speed, data, pressure, energy, power, fuel economy, angles, and more in one clean app. Results update live as you type, so you can compare units without waiting or switching screens. Features: - Works offline - Live conversions while typing - Length, area, volume, mass, temperature, time, speed, data, pressure, energy, power, fuel economy, angle units, and more - Swap units instantly - Copy, paste, share, and clear conversion values - Recent conversions for quick reuse - Light and dark mode support Whether you are cooking, traveling, studying, working, or checking a quick measurement, ConvertMyUnits keeps conversions straightforward and accessible. ConvertMyUnits shows ads on iPhone and iPad; where the law requires it, Settings has ad privacy choices. ConvertMyUnits Plus is an optional auto-renewing subscription, billed every 1, 3 or 6 months, that removes them. Payment is charged to your Apple Account; the subscription renews unless cancelled at least 24 hours before the end of the period, and can be managed in your account settings. Privacy policy: https://southbaycompute.com/convertmyunits/privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Worthless Controls

This app provides comprehensive tuning and telemetry for electric vehicle motor controllers and battery systems. Connect via Bluetooth to adjust parameters, monitor live data, and record rides for e-motorcycles, scooters, e-bikes, and e-skates.

Highlights
  • Bluetooth connectivity
  • Full parameter tuning for controllers
  • Live data dashboards
  • Battery BMS monitoring
  • Ride data logging and export
  • Firmware flashing
  • Remote controller adjustment
Features
Read full description

Worthless Controls is the most complete tuning and telemetry app for electric-vehicle motor controllers and battery systems. Connect over Bluetooth and take full control of your build — whether you ride an e-motorcycle, scooter, e-bike, or e-skate. CONTROLLERS • FarDriver — full parameter tuning • VESC — profiles, live data, and configuration • VOTOL — telemetry and parameter editing BATTERY (BMS) • JBD, JK, ANT, DALY and more — voltage, current, SOC, cell balance, temps, and protection status at a glance LIVE DASHBOARDS • Full-screen race dashboard: speed, RPM, power, temps, and trip data • Classic gauge dashboard with multiple styles • Optional GPS speed and real-time charts TUNE EVERYTHING • Speed, current, regen, throttle response, field weakening, and dozens more parameters • Edit RPM and torque curves visually • Wheel-size and battery calibration for accurate speed and range RECORD YOUR RIDES • Data logging with configurable metrics and CSV export • Log viewer with charts and a GPS map of your route • Efficiency tracking and range estimation AND MORE • Flash controller firmware (.bin/.hex) right from your phone • Remote sharing — let a tuner adjust your controller from anywhere • Drag and lap timer with a leaderboard • Connect multiple devices at once Some advanced features require a one-time Pro unlock. No subscriptions, no ads — buy once, yours forever. Not affiliated with FarDriver, VESC, VOTOL, or any BMS maker. Adjusting controller parameters and flashing firmware carries risk — use at your own discretion.

Screenshots

ConvertMyUnits4 screens
Worthless Controls4 screens

Verdict

The call

The clearest difference is rating: ConvertMyUnits at 5.0 against Worthless Controls's 4.2. Worthless Controls's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, update cadence, monetization model 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. ConvertMyUnits sells 3 in-app purchases, starting at $0.99 per month. Worthless Controls asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ConvertMyUnits holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Worthless Controls has 13 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

ConvertMyUnits ships an update every 3 days, Worthless Controls every 4 days. Both last shipped on November 10, 2026.

Scorecard5 real differences · 5 level
ConvertMyUnits versus Worthless Controls: the parameters behind the verdict, then further details
ParameterConvertMyUnitsWorthless Controls
PriceFreeFree
Rating5.0 (1 ratings) — better4.2 (13 ratings)
Positive reviews—100.0% of reviews
Number of ratings113 — better
Update frequencyEvery 3 days — betterEvery 4 days
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS26.015.0 — better
Further details — not scored
Size33 MB63 MB
Age rating4+4+
DeveloperSouth Bay Compute, LLCTAYLOR HAYDEN SMYTH

Customer experience

ConvertMyUnits

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Worthless Controls

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

ConvertMyUnits

Subscriptions3
  • ConvertMyUnits Plus$0.991 Month
  • ConvertMyUnits Plus$1.993 Months
  • ConvertMyUnits Plus$2.996 Months
None

Worthless Controls

No in-app purchases

Questions

Is ConvertMyUnits free?
ConvertMyUnits is free to download, with in-app purchases available.
Is Worthless Controls free?
Worthless Controls is free to download, with no in-app purchases.
Which has better reviews, ConvertMyUnits or Worthless Controls?
ConvertMyUnits is rated higher. ConvertMyUnits averages 5.0 out of 5 from 1 ratings, while Worthless Controls averages 4.2 from 13 ratings.
Do ConvertMyUnits or Worthless Controls have ads?
ConvertMyUnits shows ads; Worthless Controls does not.
Which is updated more often, ConvertMyUnits or Worthless Controls?
ConvertMyUnits ships an update every 3 days, and Worthless Controls every 4 days. Most recently, ConvertMyUnits was updated on November 10, 2026 and Worthless Controls on November 10, 2026.

Other comparisons