Comparison

units vs Conversions

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

Head to head
About

units

Read full description

uConverter is a useful app that lets you quickly convert from the most popular units conversion. This app is designed with simple UI (user interface) that is very intuitive and easy to use.

About

Conversions

Easily convert over 100 units across various categories like temperature, length, and weight. View conversion formulas, copy results, and share them directly. Enjoy a private, ad-free experience with a native iOS design.

Highlights
  • Convert 100+ units
  • Temperature, length, weight conversions
  • View conversion formulas
  • Copy and share conversions
  • Native iOS design
  • Ad-free experience
Features
Read full description

Conversions helps you convert different units of measurement, including units of temperature, length, or weight. Use Conversions to convert common measures, such as Fahrenheit to Celsius, meters to feet, and pounds to kilograms, or more technical ones, such as Joule to Kilowatt Hour, Newton to Pound-Force, and Pascal to Bar. Features: · Convert over 100 units across categories like angle, area, data, energy, force, length, power, pressure, speed, temperature, time, volume, and weight · Keep track of up to 100 of your recent conversions · Save up to 25 favorites for quick access · View the exact formulas behind each conversion · Look up unit details, including symbols, measurement systems, and conversion formulas for related units · Copy your conversions to clipboard or share directly with others · Enjoy a native iOS design, using Apple’s latest frameworks and UI guidelines Conversions provides a private and secure, ad-free experience—no ads, no tracking, ever. Terms of Service: https://crater.tools/conversions/terms-of-service Privacy Policy: https://crater.tools/conversions/privacy-policy

Screenshots

units4 screens
Conversions4 screens

Verdict

The call

The clearest difference is device support: units at 3 against Conversions's 1. units also leads on iOS requirement (9.3 vs 18.6). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

units ships an update fortnightly, Conversions every 2 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
units versus Conversions: the parameters behind the verdict, then further details
ParameterunitsConversions
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS9.3 — better18.6
Further details — not scored
Size18 MB6 MB
Age rating4+4+
DeveloperDavid NgoPiotr Bakker

In-app purchases

None

units

No in-app purchases

None

Conversions

No in-app purchases

Questions

Is units free?
units is free to download, with no in-app purchases.
Is Conversions free?
Conversions is free to download, with no in-app purchases.
Do units or Conversions have ads?
Neither units nor Conversions shows ads.
Which is updated more often, units or Conversions?
units ships an update fortnightly, and Conversions every 2 weeks. Most recently, units was updated on October 24, 2026 and Conversions on October 28, 2026.

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