Comparison

Torque Source vs Conversion Calculator Plus

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

Head to head
About

Torque Source

This utility app assists torque wrench users with two essential calculators for unit conversion and adapter-based torque adjustments. It also provides helpful usage tips and links to additional resources.

Highlights
  • Torque unit conversion calculator
  • Torque wrench adapter adjustment calculator
  • Usage hints for torque wrenches
  • Links to Snap-on resources
Features
Read full description

Snap-on “Torque Source” is a convenient resource tool for torque wrench users. This app includes two torque calculators, one for torque unit of measure conversion and another for adjusting the torque wrench setting when using an adapter – and therefore changing the overall length in the horizontal plane from the middle of the handle to the center of the faster. This application also includes torque wrench usage helpful hints and other Snap-on links.

About

Conversion Calculator Plus

This app is a versatile unit and currency converter with a user-friendly interface. It supports a wide range of conversion categories, including real-world and crypto currencies, with automatic exchange rate updates. Customize your experience with design options, dark mode, and adjustable home screen layouts.

Highlights
  • Unit and currency conversion
  • Supports 160+ currencies (real & crypto)
  • Automatic currency exchange rate updates
  • Simple or carousel design options
  • Dark Mode support
  • Customizable home screen layout
  • Split screen mode on iPad
Features
Read full description

• No full-page ads. • App works without internet. • Rates Saved for Offline use. • Real-time rates updated every minute. • Fast, accurate conversions across 685 units. • Hide unused units, currencies and categories. • Built-in calculator with +, −, ×, ÷, ( and ). • Supports both light and dark appearance. • Custom Home Screen Widgets. Premium Required • Use Siri to convert. Premium Required • Conversions automatically saved to History. • Save all your favorite conversions in 1 place • Interactive rate charts from 1 day to 5 years, plus all available history. • Expand charts to full screen, pinch to zoom, pan and inspect past rates. ----------------------------------------- ALL CONVERSION CATEGORIES COMMON CATEGORIES Pace, Temperature, Data, Currency, Length, Time, Speed, Area, Volume, Pressure, Power, Fuel Economy and Weight. CURRENCIES, CRYPTO & METALS Convert all world currencies, 125 cryptocurrencies and tokens—including Bitcoin, Ethereum and Tether—and four precious metals: gold, silver, platinum and palladium. Compare multiple currencies in one list with Currency+. NUMBERS & GEOMETRY Angle and Amount. PERSONAL & HEALTH Shoe Sizes, Ring Sizes and Blood Sugar. MOTION & MECHANICS Acceleration, Angular Acceleration, Force, Torque, Energy and Moment of Inertia. FLUIDS & MATERIALS Flow, Density, Viscosity, Kinematic Viscosity, Surface Tension, Permeability, Mass Flux Density and Specific Volume. TEMPERATURE & HEAT Temperature Interval, Thermal Conductivity, Specific Heat Capacity, Heat Density, Heat Flux Density, Heat Transfer Coefficient and Thermal Expansion. ELECTRICITY & MAGNETISM Current, Voltage, Charge, Resistance, Capacitance, Inductance, Conductance, Linear Charge Density, Surface Charge Density, Volume Charge Density, Linear Current Density, Surface Current Density, Electric Field Strength, Electric Resistivity, Electric Conductivity, Magnetic Flux (Magnet), Magnetic Field Strength, Magnetic Flux Density and Magnetomotive Force. LIGHT & SOUND Luminance, Illumination, Luminous Intensity, Sound and Frequency. DATA & DESIGN Data Transfer Rate, Image and Typography. CHEMISTRY & RADIATION Molar Concentration, Molar Mass, Molar Flow Rate, Radiation, Radioactivity and Exposure. PREMIUM Premium is an optional auto-renewing annual subscription. It removes banner ads, gives you more screen space, and unlocks interactive Home Screen widgets and Siri conversions. Payment is charged to your Apple Account when you confirm the purchase. It renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple Account settings. The price is shown before you confirm. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://developer-yl.github.io/convert-units-plus/privacy.html

Screenshots

Torque Source4 screens
Conversion Calculator Plus4 screens

Verdict

The call

The clearest difference is review sentiment: Conversion Calculator Plus at 70% against Torque Source's 14%. Conversion Calculator Plus also leads on rating (4.7 vs 3.1) and ratings volume (15K vs 16). Torque Source's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price 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. Conversion Calculator Plus sells 1 in-app purchase, starting at $9.99 per year. Torque Source asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Conversion Calculator Plus holds the better App Store score, 4.7 against 3.1. That said, the two scores are not equally well evidenced: Conversion Calculator Plus has 15K ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 14% of Torque Source's written reviews are positive against 70% of Conversion Calculator Plus's.

UpkeepUpdate frequency

Torque Source ships an update every 8 days, Conversion Calculator Plus every 2 days. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

Scorecard8 real differences · 2 level
Torque Source versus Conversion Calculator Plus: the parameters behind the verdict, then further details
ParameterTorque SourceConversion Calculator Plus
PriceFreeFree
Rating3.1 (16 ratings)4.7 (15K ratings) — better
Positive reviews14.3% of reviews69.5% of reviews — better
Number of ratings1615K — better
Update frequencyEvery 8 daysEvery 2 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS7.0 — better17.0
Further details — not scored
Size1 MB59 MB
Age rating4+4+
DeveloperSnap-on Inc.Adysseus

Customer experience

Torque Source

All ratings16 ratings
Positive37.5%
Neutral25.0%
Negative37.5%
Written reviews14 reviews
Positive14.3%
Neutral28.6%
Negative57.1%

Conversion Calculator Plus

All ratings15,343 ratings
Positive94.6%
Neutral2.8%
Negative2.6%
Written reviews200 reviews
Positive69.5%
Neutral4.5%
Negative26.0%

Bugs and requests

Torque Source

Not enough reviews yet to summarise bugs or requests.

Conversion Calculator Plus

Reported bugs

3 issues
  • Currency conversion not working
  • App gets stuck on consent page
  • Unable to get past ads/subscription page

Requested features

3 requests
  • Add running pace conversions
  • Add shoe size converter
  • Provide paid ad-free version

In-app purchases

None

Torque Source

No in-app purchases

1 purchases

Conversion Calculator Plus

Subscriptions1
  • No Ads For One Year1 Year trial$9.991 Year

Questions

Is Torque Source free?
Torque Source is free to download, with no in-app purchases.
Is Conversion Calculator Plus free?
Conversion Calculator Plus is free to download, with in-app purchases available.
Which has better reviews, Torque Source or Conversion Calculator Plus?
Conversion Calculator Plus is rated higher. Torque Source averages 3.1 out of 5 from 16 ratings, while Conversion Calculator Plus averages 4.7 from 15K ratings.
Do Torque Source or Conversion Calculator Plus have ads?
Conversion Calculator Plus shows ads; Torque Source does not.
Which is updated more often, Torque Source or Conversion Calculator Plus?
Torque Source ships an update every 8 days, and Conversion Calculator Plus every 2 days. Most recently, Torque Source was updated on November 3, 2026 and Conversion Calculator Plus on November 7, 2026.

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