Comparison

Uniter vs Smart Unit Conversion

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

Head to head
About

Uniter

Effortlessly convert units of measurement directly within text, websites, or even through your camera. This utility automatically detects and converts units to your preferred system, supporting a vast array of measurement types.

Highlights
  • Automatic unit conversion
  • Live side-by-side converter
  • File import for conversion
  • Camera text scanning
  • Safari extension
  • Extensive unit support
Read full description

Uniter makes units and currencies easy to understand, whether you’re cooking, traveling, shopping, or reading something from abroad. Convert a number, scan a photo, or change measurements throughout a piece of text. • CONVERT UNITS Enter a value and see its equivalents across hundreds of units. Search to find the unit you need, and let Uniter remember your preferred target unit for next time. • CONVERT CURRENCIES Choose two currencies, enter an amount, and convert with updated exchange rates. Swap currencies with a tap and check the rate date. • KEEP CONVERSIONS CLOSE Add nine free, customizable Home Screen widgets: Conversion Card, Currency Card, Distances, and more. Choose your units and amounts, then tap a widget to open its conversion in Uniter. • RETURN TO YOUR FAVORITES Pin frequently used unit and currency pairs for quick access, or pick up where you left off with recent conversions. • COPY RESULTS EASILY Copy a result with one tap. Touch and hold for additional formats, including the value with its unit or currency. • CONVERT UNITS IN TEXT Let Uniter find measurements in text and convert them to your preferred measurement system. • SCAN WITH YOUR CAMERA Point your camera at text or choose a photo to convert the measurements it contains. • USE UNITER IN SAFARI Convert units on webpages with Uniter’s Safari extension. UNITER PRO Unlock unlimited unit conversions, text conversion, camera and photo scanning, Safari conversion, and access to your full recent history of up to 100 units and 100 currency pairs. Privacy Policy: https://uniterapp.com/privacypolicy/ Terms of Use: https://uniterapp.com/terms/

About

Smart Unit Conversion

Features
Read full description

This is a smart unit convertor that: 1. Support 21 languages and the Local Units 2. You can Customize the Sequence of Units 3. European number format supported Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Uniter4 screens
Smart Unit Conversion4 screens

Verdict

The call

The clearest difference is ads: Uniter at none against Smart Unit Conversion's shown. Uniter also leads on update cadence (every 4 days vs every 15 months). Smart Unit Conversion's advantage is iOS requirement (13.4 vs 26.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Uniter sells 3 in-app purchases, starting at $3.99 per month and Smart Unit Conversion sells 1 in-app purchase, starting at $1.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Uniter ships an update every 4 days, Smart Unit Conversion every 15 months. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 7 level
Uniter versus Smart Unit Conversion: the parameters behind the verdict, then further details
ParameterUniterSmart Unit Conversion
PriceFreeFree
Rating4.7 (74 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings74 — better—
Update frequencyEvery 4 days — betterEvery 15 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.013.4 — better
Further details — not scored
Size18 MB41 MB
Age rating4+17+
DeveloperArkadiusz HolkoYui Lau

In-app purchases

3 purchases

Uniter

Subscriptions2
  • Uniter Pro (Monthly)$3.991 Month
  • Uniter Pro (Annual)7 Days trial$14.991 Year
One-time1
  • Uniter Pro (Lifetime)$39.99
1 purchases

Smart Unit Conversion

Subscriptions1
  • 1 Year$1.991 Year

Questions

Is Uniter free?
Uniter is free to download, with in-app purchases available.
Is Smart Unit Conversion free?
Smart Unit Conversion is free to download, with in-app purchases available.
Do Uniter or Smart Unit Conversion have ads?
Smart Unit Conversion shows ads; Uniter does not.
Which is updated more often, Uniter or Smart Unit Conversion?
Uniter ships an update every 4 days, and Smart Unit Conversion every 15 months. Most recently, Uniter was updated on October 25, 2026 and Smart Unit Conversion on October 27, 2026.

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