Comparison

Conversion Calculator vs ConvertAll Drag

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 15 categories and 120+ units
  • Metric and imperial conversions
  • Cooking, weight, length, temperature, and more
  • Offline functionality
  • Customizable decimal display
  • Apple Watch app
Features
Read full description

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.

About

ConvertAll Drag

Features
Read full description

Unit converter with 20 categories and 182 units. Search categories and units, save favorite pairs, and reopen recent conversions. Copy or share results. Includes calculator, BMI, tip, and date tools. Supports 28 languages and theme settings.

Screenshots

Conversion Calculator4 screens
ConvertAll Drag4 screens

Verdict

The call

The clearest difference is in-app purchases: ConvertAll Drag at none against Conversion Calculator's 1. ConvertAll Drag also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Conversion Calculator sells 1 one-off in-app purchase. ConvertAll Drag asks for nothing beyond the download.

UpkeepUpdate frequency

Conversion Calculator ships an update every 5 weeks, ConvertAll Drag every 2 months. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

Scorecard2 real differences · 8 level
Conversion Calculator versus ConvertAll Drag: the parameters behind the verdict, then further details
ParameterConversion CalculatorConvertAll Drag
PriceFreeFree
Rating4.8 (165 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings165 — better—
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS17.013.0 — better
Further details — not scored
Size10 MB23 MB
Age rating4+4+
DeveloperCollins CheruiyotShin YuJin

In-app purchases

1 purchases

Conversion Calculator

One-time1
  • Unlimited access forever$8.99
None

ConvertAll Drag

No in-app purchases

Questions

Is Conversion Calculator free?
Conversion Calculator is free to download, with in-app purchases available.
Is ConvertAll Drag free?
ConvertAll Drag is free to download, with no in-app purchases.
Do Conversion Calculator or ConvertAll Drag have ads?
Neither Conversion Calculator nor ConvertAll Drag shows ads.
Which is updated more often, Conversion Calculator or ConvertAll Drag?
Conversion Calculator ships an update every 5 weeks, and ConvertAll Drag every 2 months. Most recently, Conversion Calculator was updated on November 12, 2026 and ConvertAll Drag on November 13, 2026.

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