Currency&Unit Conversions vs Smart Unit Conversion
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Currency&Unit Conversions
Easily convert between various units and currencies, saving your calculations for later. View all your past conversions in one place, eliminating the need to re-enter data. Supports a wide range of categories including temperature, length, area, volume, and weight.
- Save conversion history
- View all conversions at once
- Temperature conversion
- Currency conversion (158 currencies)
- Length, Area, Volume, Weight conversions
- Supports Foot + Inch and Pound + Ounce
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Save your currency/temperature/unit conversions for future reference. See all your conversions at once instead of one at a time. Supports common unit conversions, including Foot + Inch and Pound + Ounce, in these categories: * Temperature * Currencies (158 currencies, 205 countries, powered by Yahoo! Finance, requires Internet connection) * Length / Distance (supports Foot + Inch) * Area * Volume (supports cooking measurements) * Weight / Mass (supports Pound + Ounce) * Speed * Power * Energy
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: Currency&Unit Conversions at none against Smart Unit Conversion's shown. Currency&Unit Conversions also leads on update cadence (every 2 months vs every 15 months) and iOS requirement (7.0 vs 13.4). 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. Currency&Unit Conversions sells 1 one-off in-app purchase 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.
Currency&Unit Conversions ships an update every 2 months, Smart Unit Conversion every 15 months. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.
| Parameter | Currency&Unit Conversions | Smart Unit Conversion |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (49 ratings) — better | — |
| Positive reviews | 79.1% of reviews | — |
| Number of ratings | 49 — better | — |
| Update frequency | Every 2 months — better | Every 15 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 17 MB | 41 MB |
| Age rating | 4+ | 17+ |
| Developer | 38 Softworks Inc. | Yui Lau |
Bugs and requests
Currency&Unit Conversions
Reported bugs
3 issues- Currency not loading
- App crashes instantly
- App won't open
Requested features
2 requests- Absolute temperature conversions
- Kelvin temperature option
Smart Unit Conversion
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Currency&Unit Conversions
- Remove All Ads$1.99
Smart Unit Conversion
- 1 Year$1.991 Year
Questions
Is Currency&Unit Conversions free?
Is Smart Unit Conversion free?
Do Currency&Unit Conversions or Smart Unit Conversion have ads?
Which is updated more often, Currency&Unit Conversions or Smart Unit Conversion?
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