Mercury vs Simple Unit Convert Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mercury
Easily convert temperatures between Celsius, Fahrenheit, and Kelvin with an elegant and intuitive interface. Features dynamic background color changes based on temperature and supports decimal conversions.
- Celsius, Fahrenheit, Kelvin conversion
- Interactive temperature scrolling
- Dynamic background color
- Reset to zero function
- Decimal temperature support
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Mercury is the best temperature converter for Celsius, Fahrenheit and Kelvin. Elegant and easy to use. • Convert Celsius, Fahrenheit and Kelvin. • Scroll with your finger to change the current temperature. • Watch as the background color changes while you go hotter or colder. • Reset to zero with a quick tap. • Support for decimal temperature conversion.
Simple Unit Convert Pro
This utility app offers a comprehensive solution for converting various units of measurement. It simplifies daily tasks by providing precise conversions for temperature, speed, distance, weight, volume, and area. Streamline your needs with this user-friendly converter.
- Temperature conversion (Fahrenheit/Celsius)
- Speed conversion (mph/kph)
- Distance conversion (miles/kilometers)
- Weight conversion (lbs/oz/kg)
- Volume conversion (cups/ml/gallons)
- Area conversion (sq ft/sq m)
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Introducing "Simple Unit Convert Pro" – Your All-in-One Conversion Companion! Convert the units: - Fahrenheit and Celsius - Miles/hour and Kilometres/hour - Miles and Kilometres - Feet, Meters and Inches - Square feet and Square meters - Pounds, Ounces and Kilograms - Cups and Decilitres - Fluid oz, Pint, Quart, gallon and Millilitres Say goodbye to guesswork and hello to precision with Simple Unit Convert Pro! Simplify your daily conversions and streamline your tasks. Download now and experience the convenience of having a versatile and user-friendly converter at your fingertips. Your one-stop solution for all things conversion – making life easier, one unit at a time! #SimpleUnitConvertPro #EffortlessConversions
Screenshots
Verdict
The clearest difference is rating: Simple Unit Convert Pro at 5.0 against Mercury's 3.5. Simple Unit Convert Pro also leads on in-app purchases (none vs 5) and update cadence (every 2 months vs every 70 months). On price, ratings volume, ads and monetization model 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. Mercury sells 5 one-off in-app purchases. Simple Unit Convert Pro asks for nothing beyond the download.
Simple Unit Convert Pro holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 4 and 4 respectively.
Mercury ships an update every 70 months, Simple Unit Convert Pro every 2 months. Both last shipped on September 9, 2026.
| Parameter | Mercury | Simple Unit Convert Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (4 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 | 4 |
| Update frequency | Every 70 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 4 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Samuel Herrera | Annika Gadman |
Customer experience
Mercury
Simple Unit Convert Pro
In-app purchases
Mercury
- Small Tip$0.99
- Remove Ads$1.99
- Medium Tip$2.99
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- Large Tip$4.99
- Massive Tip$9.99
Simple Unit Convert Pro
No in-app purchases
Questions
Is Mercury free?
Is Simple Unit Convert Pro free?
Which has better reviews, Mercury or Simple Unit Convert Pro?
Do Mercury or Simple Unit Convert Pro have ads?
Which is updated more often, Mercury or Simple Unit Convert Pro?
Other comparisons
