Conversion Calculator Plus vs iCalculator X
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
iCalculator X
This utility app offers a comprehensive calculator with a history tape and numerous unit converters. It provides a free, all-in-one solution for calculations and conversions, aiming to replace the default device calculator.
- Basic calculator
- Calculation history tape
- On-screen delete
- Unit converters (Volume, Mass, Length, etc.)
- Easy percentage calculator
- Currency converter (coming soon)
- Time zone converter (coming soon)
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Best iPhone & iPad Calculator in the entire App Store ( Latest iPad Support ) Calculator with History Tape & Unit Converters all at one place. No Need to Download Paid Apps or Pay a monthly or yearly subscription. This App is all you need if you want to calculate, convert units & have a history tape to recall your calculations done. Lifetime Free - Forever Free Updates - No in-app purchases Replace your iPhone calculator with iCalculator X All Features are Available to all & Free to use without any special purchase or unlocks. iCalculator X has most of the premium features for Free to which you would have been required to pay for. iCalculator X Features - - Basic Calculator - History Tape ( Calculation history ) - On-screen delete button - Addition, Subtraction, Division, Percentage, is equal to Indicators on the screen - Easy Percentage Calculator ( Unique Feature ) - Volume Converter - Mass converter - Length converter - Area converter - Speed converter - Power Converter - Energy converter - Temperature Converter - Time converter - BMI Calculator ( Coming Soon ) - Simple interest calculator ( Coming Soon ) - Compound interest calculator ( Coming Soon ) - 150+ Currencies Converter ( Coming Soon ) - Time Zone converter ( Coming Soon ) This is the Ultimate Replacement to the default iPhone Calculator & a boon to the iPad users who does not have an inbuilt calculator. If You liked the App, then Kindly Show us Some Love by giving an honest review!
Screenshots
Verdict
The clearest difference is review sentiment: Conversion Calculator Plus at 70% against iCalculator X's 0%. Conversion Calculator Plus also leads on update cadence (every 2 days vs every 25 months). iCalculator X's advantage is monetization model (ad-supported vs free with in-app purchases) and iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases 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 and iCalculator X sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Conversion Calculator Plus ships an update every 2 days, iCalculator X every 25 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Conversion Calculator Plus | iCalculator X |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (15K ratings) — better | — |
| Positive reviews | 69.5% of reviews — better | 0.0% of reviews |
| Number of ratings | 15K — better | — |
| Update frequency | Every 2 days — better | Every 25 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 59 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Adysseus | Mohit Gaddam |
Customer experience
Conversion Calculator Plus
iCalculator X
Bugs and 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
iCalculator X
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Conversion Calculator Plus
- No Ads For One Year1 Year trial$9.991 Year
iCalculator X
- Mini Pizza$2.99
- Medium Pizza$4.99
- Large Pizza$6.99





