Temperature Converter vs Conversion Calculator Plus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Temperature Converter
Easily convert temperatures between Celsius, Fahrenheit, and Kelvin with a clean and intuitive interface. This utility app offers quick and accurate conversions for everyday use. Ads are present but can be removed via a one-time purchase.
- Celsius conversion
- Fahrenheit conversion
- Kelvin conversion
- User-friendly interface
- Ad removal option
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A striking & user-friendly temperature converter! Quickly convert temperatures between Celsius, Fahrenheit & Kelvin. Ad Supported. Ads can be removed with a one-time in-app purchase.
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 ads: Temperature Converter at none against Conversion Calculator Plus's shown. Temperature Converter also leads on review sentiment (91% vs 70%) and iOS requirement (15.0 vs 17.0). Conversion Calculator Plus's advantage is update cadence (every 2 days vs every 6 months). On price, rating, ratings volume 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
Both are free to download. Temperature Converter sells 3 one-off in-app purchases and Conversion Calculator Plus sells 1 in-app purchase, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for Temperature Converter against 4.7 for Conversion Calculator Plus. Both are backed by a comparable volume of ratings — 6.3K and 15K respectively. Written reviews are what separate them: 91% of Temperature Converter's written reviews are positive against 70% of Conversion Calculator Plus's.
Temperature Converter ships an update every 6 months, Conversion Calculator Plus every 2 days. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.
| Parameter | Temperature Converter | Conversion Calculator Plus |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (6.3K ratings) — better | 4.7 (15K ratings) |
| Positive reviews | 91.5% of reviews — better | 69.5% of reviews |
| Number of ratings | 6.3K | 15K — better |
| Update frequency | Every 6 months | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 11 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Armchair Engineering | Adysseus |
Customer experience
Temperature Converter
Conversion Calculator Plus
User reviews
Temperature Converter
From 6.3K App Store ratingsWhat we love
- 👍 Simple and easy to use
- 🚀 Accurate and fast conversions
- 💡 Useful for international communication
- 🚀 Excellent app for the job
- 👍 Straightforward and effective
Room to improve
- 🔍 Needs more customization options
- 💰 Too many ads
- 🔍 Inaccurate temperature calculations
Conversion Calculator Plus
From 15K App Store ratingsWhat we love
- 🚀 Great app
- 👍 Easy to use
- 🚀 Comprehensive conversions
- 👍 Intuitive interface
- 🚀 Useful tool
Room to improve
- 🐛 Consent required for tracking
- 🐛 Update problems
- 🐛 Currency not updating
- 🔒 Forced to allow tracking
- 🔒 Forced to subscribe or view ads
Bugs and requests
Temperature Converter
Reported bugs
2 issues- Inaccurate Kelvin temperature conversions
- Occasional crashes or freezes
Requested features
3 requests- Add Rankine temperature scale
- Increase font size for better readability
- Provide color customization options
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
Temperature Converter
- Upgrade Reduced$0.99
- Upgrade$1.99
- Upgrade Hero$3.99
Conversion Calculator Plus
- No Ads For One Year1 Year trial$9.991 Year





