2nd Calc vs Simple Unit Convert Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
2nd Calc
This utility app simplifies everyday calculations with a tip calculator, temperature and unit converters, a real-time currency converter, and a multi-city time zone display. It aims to be your go-to tool for common daily tasks, keeping complex calculators for specialized needs.
- Tip calculator
- Temperature conversion (F/C)
- Unit converter (distance/weight)
- Real-time currency converter
- Multi-city time zone display
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Welcome to your "2nd Calculator!" A quick and easy way to solve common questions and tasks. Key features include the following: - Tip Calculator for common percentages - Simple Temperature conversion to and from Fahrenheit and Celsius - A Unit Converter for common distance and weight measurements (see below) - A real-time Currency Converter using daily rates for key currencies (well, we think they're key) - On the spot or future Time Zone displays for up to 4 major cities on one screen! Keep the complicated calculators and apps on your phone for when you need them, but we think you'll find most daily tasks right here in one place. Distance Conversion options: To and From... - Centimeters (cm) - Meters (m) - Kilometers (km) - Inches (in) - Feet (ft) - Yards (yd) - Miles ...Or weights: - Grams (g) - Kilograms (kg) - Ounces (oz) - Pounds (lbs)
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 update cadence: Simple Unit Convert Pro at every 2 months against 2nd Calc's every 6 months. 2nd Calc's advantage is iOS requirement (12.0 vs 15.1). On price, rating, ratings volume and ads 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for 2nd Calc against 5.0 for Simple Unit Convert Pro. Both are backed by a comparable volume of ratings — 2 and 4 respectively.
2nd Calc ships an update every 6 months, Simple Unit Convert Pro every 2 months. The most recent releases landed on June 1, 2026 and September 9, 2026 respectively.
| Parameter | 2nd Calc | Simple Unit Convert Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (4 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 6 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 41 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Scott Kier | Annika Gadman |
Customer experience
2nd Calc
Simple Unit Convert Pro
In-app purchases
2nd Calc
No in-app purchases
Simple Unit Convert Pro
No in-app purchases
Questions
Is 2nd Calc free?
Is Simple Unit Convert Pro free?
Which has better reviews, 2nd Calc or Simple Unit Convert Pro?
Do 2nd Calc or Simple Unit Convert Pro have ads?
Which is updated more often, 2nd Calc or Simple Unit Convert Pro?
Other comparisons
