Torque Source vs Conversion Calculator Plus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Torque unit conversion calculator
- Torque wrench adapter adjustment calculator
- Usage hints for torque wrenches
- Links to Snap-on resources
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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.
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.
- 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
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• 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
Verdict
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
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.
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.
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.
| Parameter | Torque Source | Conversion Calculator Plus |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (16 ratings) | 4.7 (15K ratings) — better |
| Positive reviews | 14.3% of reviews | 69.5% of reviews — better |
| Number of ratings | 16 | 15K — better |
| Update frequency | Every 8 days | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 7.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Snap-on Inc. | Adysseus |
Customer experience
Torque Source
Conversion Calculator Plus
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
Torque Source
No in-app purchases
Conversion Calculator Plus
- No Ads For One Year1 Year trial$9.991 Year





