Comparison

The ULTIMATE Unit Converter vs Unitio

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

Head to head
About

The ULTIMATE Unit Converter

Easily convert between a vast array of units across 20 categories. Simply select a category, input your value, and choose the desired units to see the conversion result.

Highlights
  • 20 conversion categories
  • 190+ units supported
  • Intuitive input and output selection
  • Supports length, temperature, volume, mass, and more
  • Simple and powerful interface
Features
Read full description

Simple and powerful unit converter with 20 categories and 190+ units. This App converts all units that you can think of Categories: - Length - Temperature - Volume - Mass - Area - Storage - Pressure - Speed - Power - Duration - Angle - Energy - Frequenzy - Fuel Efficency - Acceleration - Concentration Mass - Electric Charge - Electric Current - Electric Potential Difference - Electric Resistance How to use: 1. Select a category 2. Type your number you want to convert 3. Select the input and output unit 4. Watch the result

About

Unitio

Features
Read full description

Unitio – Smart Unit Converter & Calculator Unitio is a powerful and intuitive unit conversion app designed for students, engineers, professionals, travelers, and anyone who works with measurements daily. Whether you need quick conversions, live currency exchange rates, or complex calculations with mixed units, Unitio delivers accurate results instantly. Free Features: Converter Convert units across multiple categories with precision and clarity. Supported categories include: • Length • Area • Volume • Mass • Torque • Time • Number Format • Speed • Energy • Network Bandwidth • Pressure • Temperature • Speed • Illuminance • Force • Density • Frequency ... and more Switch between units effortlessly and get instant, reliable results. Currency Converter Convert global currencies quickly using up-to-date exchange rates. Stay informed with a convenient watchlist that lets you monitor your most important currencies at a glance. Free users can save up to 3 currencies on their watchlist. Premium users can track unlimited currencies. Perfect for travellers, international shoppers, and anyone working across different currencies. Premium Features: Calculator (Mixed-Unit Equations) Go beyond basic conversion. With Unitio’s built-in calculator, you can input equations that contain different units and compute the result in your desired unit. Unitio automatically handles unit normalization and dimensional consistency — so you don’t have to. Perfect for real-world problems in engineering, construction, physics, and everyday use. Unlimited Currency on conversion watchlist Subscription: - You can subscribe for Pro account with access to all categories for unit conversion, unlimited currency watchlist, calculator, and removal of all ads so you can enjoy the smoothest experience with Unitio. - Subscription options are Weekly, Monthly and Yearly with 3 days of free trial. - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. - Payment will be charged to your Apple ID account at confirmation of purchase. Why Unitio? • Clean, distraction-free interface • High precision calculations • Fast and lightweight • Designed for accuracy and reliability • Built for both quick conversions and complex equations Unitio simplifies measurements — so you can focus on what matters. Privacy Policy: https://toxicjstudio.com/privacy-policy Term of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

The ULTIMATE Unit Converter4 screens
Unitio4 screens

Verdict

The call

The clearest difference is in-app purchases: The ULTIMATE Unit Converter at none against Unitio's 3. The ULTIMATE Unit Converter also leads on ads (none vs shown) and iOS requirement (13.1 vs 15.1). Unitio's advantage is update cadence (every 5 days vs fortnightly). 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. Unitio sells 3 in-app purchases, starting at $1.99 per 7 days. The ULTIMATE Unit Converter asks for nothing beyond the download.

UpkeepUpdate frequency

The ULTIMATE Unit Converter ships an update fortnightly, Unitio every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
The ULTIMATE Unit Converter versus Unitio: the parameters behind the verdict, then further details
ParameterThe ULTIMATE Unit ConverterUnitio
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyFortnightlyEvery 5 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.1 — better15.1
Further details — not scored
Size1 MB44 MB
Age rating4+4+
DeveloperSherzad Kalaf MoheKin Man Leung

In-app purchases

None

The ULTIMATE Unit Converter

No in-app purchases

3 purchases

Unitio

Subscriptions3
  • UnitioPro$1.997 Days
  • UnitioPro$3.991 Month
  • UnitioPro3 Days trial$24.991 Year

Questions

Is The ULTIMATE Unit Converter free?
The ULTIMATE Unit Converter is free to download, with no in-app purchases.
Is Unitio free?
Unitio is free to download, with in-app purchases available.
Do The ULTIMATE Unit Converter or Unitio have ads?
Unitio shows ads; The ULTIMATE Unit Converter does not.
Which is updated more often, The ULTIMATE Unit Converter or Unitio?
The ULTIMATE Unit Converter ships an update fortnightly, and Unitio every 5 days. Most recently, The ULTIMATE Unit Converter was updated on November 3, 2026 and Unitio on October 31, 2026.

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