Uniter vs Smart Unit Conversion
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Automatic unit conversion
- Live side-by-side converter
- File import for conversion
- Camera text scanning
- Safari extension
- Extensive unit support
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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/
Smart Unit Conversion
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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
Verdict
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
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.
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.
| Parameter | Uniter | Smart Unit Conversion |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (74 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 74 — better | — |
| Update frequency | Every 4 days — better | Every 15 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 13.4 — better |
| Further details — not scored | ||
| Size | 18 MB | 41 MB |
| Age rating | 4+ | 17+ |
| Developer | Arkadiusz Holko | Yui Lau |
In-app purchases
Uniter
- Uniter Pro (Monthly)$3.991 Month
- Uniter Pro (Annual)7 Days trial$14.991 Year
- Uniter Pro (Lifetime)$39.99
Smart Unit Conversion
- 1 Year$1.991 Year
Questions
Is Uniter free?
Is Smart Unit Conversion free?
Do Uniter or Smart Unit Conversion have ads?
Which is updated more often, Uniter or Smart Unit Conversion?
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