Length Converter Pro vs Conversion Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Length Converter Pro
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Length Converter Pro the fast length converter to convert for Feet, Inch, Kilometre, Mile, Yard, Meter, Decimetre, Centimetre, Millimetre, Nautical Mile in real time and without any hassle. You can use it if you builder, mapmaker, seamstress, traveler or another cool man. Convert lengths quickly and as you want. --- The Terms of Use https://feelmanapp.com/terms-conditions-for-length-converter-pro/
Conversion Calculator
This utility app offers a comprehensive unit conversion tool for various needs, including cooking, travel, and work. It supports over 120 units across 15 categories, with metric and imperial options. The app works offline and allows for customization of displayed decimals and category order.
- 15 categories and 120+ units
- Metric and imperial conversions
- Cooking, weight, length, temperature, and more
- Offline functionality
- Customizable decimal display
- Apple Watch app
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Convert cooking measurements, kg to lbs, feet to meters, Celsius to Fahrenheit and psi to bar in a tap. Conversion Calculator is a fast, clean unit converter for the kitchen, travel, the gym, school and work. COOKING & KITCHEN • Cups, tablespoons, teaspoons, fluid ounces, pints, quarts and gallons • US and imperial (UK) cups, pints and gallons kept separate, so recipes come out right • Grams, ounces and pounds for baking WEIGHT & BODY • kg to lbs, stones, ounces, grams and milligrams LENGTH, AREA & LAND • Feet, inches, meters, cm, miles, km, yards and nautical miles • Square feet, square meters, acres and hectares TEMPERATURE, SPEED & MORE • Celsius, Fahrenheit and Kelvin • km/h, mph, knots and m/s • Energy: calories, kcal, joules and kWh • Data: bytes, KB, MB, GB and TB • Time: seconds to hours PRESSURE, FUEL, POWER & MORE • Pressure: psi, bar, kPa, atm, mmHg and inHg • Fuel economy: mpg (US and UK), L/100 km and km/L • Power: horsepower (hp), kW and watts • Torque: N·m, lbf·ft and kgf·m • Force: newtons, lbf and kgf • Angle: degrees, radians and gradians MADE FOR EVERYDAY USE • 15 categories and 120+ units, metric and imperial • Swap units in one tap and copy the result • Reorder categories so the ones you use are on top, or hide the rest with Pro • Choose how many decimals to show • Apple Watch app for conversions on your wrist • Works offline Converting is free. Pro is an optional one-time purchase.
Screenshots
Verdict
The clearest difference is update cadence: Length Converter Pro at every 5 days against Conversion Calculator's every 5 weeks. Length Converter Pro also leads on iOS requirement (13.4 vs 17.0). On price, ads, 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. Length Converter Pro sells 3 in-app purchases, starting at $0.99 per 7 days and Conversion Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Length Converter Pro ships an update every 5 days, Conversion Calculator every 5 weeks. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.
| Parameter | Length Converter Pro | Conversion Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (165 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 165 — better |
| Update frequency | Every 5 days — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 13.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Anna Filobok | Collins Cheruiyot |
In-app purchases
Length Converter Pro
- Premium Access$0.997 Days
- Premium Access$1.991 Month
- Premium Access$5.991 Year
Conversion Calculator
- Unlimited access forever$8.99
Questions
Is Length Converter Pro free?
Is Conversion Calculator free?
Do Length Converter Pro or Conversion Calculator have ads?
Which is updated more often, Length Converter Pro or Conversion Calculator?
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