Comparison

Universal Converter vs Universal Converter Prime

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

Head to head
About

Universal Converter

Easily convert between metric and imperial units across various categories like distance, temperature, and weight. Supports six languages for global usability.

Highlights
  • Metric to imperial conversion
  • UK and US unit support
  • Angle conversion
  • Temperature conversion
  • Volume conversion
  • Weight conversion
  • Six language support
Features
Read full description

Universal Converter is a Metrics Converter in 6 languages English, Spanish, German, Dutch, French and Arabic. Universal Converter facilitates converting metric system UK and US for imperial Angle, Bits and Bytes, Distance, Electric Current, Energy, Force, Speed, Temperature, Volume and Weight at the touch of a button.

About

Universal Converter Prime

Features
Read full description

The universal converter is a smart, easy to use and precies converter between over 500 units in 21 unit sets. With advanced features, including a calculator, advanced secondary units to create composite units for specific scientific unit sets and elaborate descriptions and sources. Each unit set is configured to be intuitive to use. It is unique in learning to how deal with units that lead to confusion in daily life, such as gigabyes (GB) and gibibytes (GiB), or kilowatt-hour (kWh) and kilowatt (kW). Unit sets include Length, Area, Volume, Mass, Speed, Temperature, Energy, Power and time, Battery capacity, Angle, Frequency (and wavelength), Musical transposition between instruments, Numbers, Percent, Fractions, Time since, Time until, Time between and Currency, Pressure, and Bits and bytes. More unit sets are coming. For each of these, a large variety of units are included. Units are shown abbreviated as well as written out, so it is easy to learn what the units refer to. The app is customizable to accommodate various preferences: in favorite units, and in how the units and values are displayed. Select a unit category to convert any combination of units within the category. You can select one of the favorite units on the top of the screen or double tap on any result cell to convert from that particular unit to all others. The values entered are converted to all the units available in this unit set and favorite units are shown on top of the list. You can use the number pad to change what value to convert. For many unit sets you can use this as a calculator: the equation in the calculator is evaluated in the background and the result is converted to all units available. Copying results: long-press the result row that you would like to copy. A box opens to copy the results to the clipboard. For the time-related unit sets, a single tap is sufficient because of the update in the numbers occurring every second. Adding favorites: by long-pressing on one of result cells, you can add the respective unit to your favorites. Removing favorites: by long-pressing on one of result cells or on the unit in the top of the screen, you can remove the respective unit from your favorites.

Screenshots

Universal Converter4 screens
Universal Converter Prime4 screens

Verdict

The call

The clearest difference is in-app purchases: Universal Converter Prime at none against Universal Converter's 1. Universal Converter Prime also leads on update cadence (daily vs every 3 months). Universal Converter's advantage is ads (none vs shown) and iOS requirement (7.0 vs 15.0). 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. Universal Converter sells 1 one-off in-app purchase. Universal Converter Prime asks for nothing beyond the download.

UpkeepUpdate frequency

Universal Converter ships an update every 3 months, Universal Converter Prime daily. The most recent releases landed on November 10, 2026 and November 8, 2026 respectively.

Scorecard4 real differences · 6 level
Universal Converter versus Universal Converter Prime: the parameters behind the verdict, then further details
ParameterUniversal ConverterUniversal Converter Prime
PriceFreeFree
Rating2.7 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 3 monthsDaily — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS7.0 — better15.0
Further details — not scored
Size28 MB4 MB
Age rating4+4+
DeveloperSilverTouch Technologies LimitedEmile Chappin

In-app purchases

1 purchases

Universal Converter

One-time1
  • Ad Free App$0.99
None

Universal Converter Prime

No in-app purchases

Questions

Is Universal Converter free?
Universal Converter is free to download, with in-app purchases available.
Is Universal Converter Prime free?
Universal Converter Prime is free to download, with no in-app purchases.
Do Universal Converter or Universal Converter Prime have ads?
Universal Converter Prime shows ads; Universal Converter does not.
Which is updated more often, Universal Converter or Universal Converter Prime?
Universal Converter ships an update every 3 months, and Universal Converter Prime daily. Most recently, Universal Converter was updated on November 10, 2026 and Universal Converter Prime on November 8, 2026.

Other comparisons