Comparison

Unit Conversion vs Pencil Notes

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

Head to head
About

Unit Conversion

Features
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Unit Conversion Pro is your ultimate conversion companion, featuring 400+ categories and revolutionary AR measuring technology. Whether you're cooking, traveling, studying, or working, get instant accurate conversions at your fingertips. **Why Choose Unit Conversion Pro?** • Lightning-fast conversions with real-time calculations • AR Measuring: Use your camera to measure distances in the real world • 400+ conversion categories covering every need • Beautiful, intuitive interface designed for iOS • Works offline - no internet required • Regular updates with new units and features • Support for 27 languages worldwide **COMPLETE CATEGORIES & UNITS:** **Length**: Meter, Kilometer, Centimeter, Millimeter, Micrometer, Nanometer, Mile, Yard, Foot, Inch, Nautical Mile, Furlong, Chain, Fathom, Arpent, Dezimeter, Dekameter, Pol, Zoll, Fuss, Meilen **Mass/Weight**: Kilogram, Gram, Milligram, Microgram, Megagram, Metric Ton, Pound, Ounce, Stone, Short Ton, Long Ton, Dram, Grain, Quarter, Quintal, Short Hundredweight, Long Hundredweight, Decagram **Temperature**: Celsius, Fahrenheit, Kelvin, Rankine, Réaumur **Time**: Second, Minute, Hour, Day, Week, Month, Year, Decade, Century, Millisecond, Microsecond, Nanosecond **Area**: Square Meter, Square Kilometer, Square Centimeter, Square Mile, Square Yard, Square Foot, Square Inch, Hectare, Acre, Are, Decare, Arpent, Rai, Ngan, Tarang Wah **Volume**: Liter, Milliliter, Gallon (US), Gallon (Imperial), Quart, Pint, Cup, Fluid Ounce, Tablespoon, Teaspoon, Cubic Meter, Cubic Centimeter, Barrel, Hectoliter, Deciliter **Speed**: Meter/Second, Kilometer/Hour, Mile/Hour, Knot, Foot/Second, Mach, Kilometer/Minute, Mile/Minute **Energy**: Joule, Kilojoule, Calorie, Kilocalorie, Watt Hour, Kilowatt Hour, BTU, Electronvolt, Erg, Foot-Pound **Power**: Watt, Kilowatt, Megawatt, Horsepower, BTU/Hour, Calorie/Second, Erg/Second **Pressure**: Pascal, Bar, PSI, Atmosphere, Torr, mmHg, inHg, Kilopascal, Megapascal **Data Storage**: Bit, Byte, Kilobyte, Megabyte, Gigabyte, Terabyte, Petabyte, Kibibyte, Mebibyte, Gibibyte **Currency**: Real-time rates for 150+ world currencies **Fuel Efficiency**: MPG (US), MPG (Imperial), L/100km, km/L, Miles/Liter **Network Speed**: Mbps, Gbps, KB/s, MB/s, GB/s **Angle**: Degree, Radian, Gradian, Minute, Second, Turn, Quadrant **Force**: Newton, Kilonewton, Pound-Force, Kilogram-Force, Dyne, Kip **Torque**: Newton-Meter, Foot-Pound, Inch-Pound, Kilogram-Meter **Illuminance**: Lux, Foot-Candle, Phot, Nox **Radioactivity**: Becquerel, Curie, Rutherford, Roentgen, Sievert, Gray **Electric Current**: Ampere, Milliampere, Microampere, Kiloampere **Flow Rate**: Liter/Second, Liter/Minute, Gallon/Minute, Cubic Meter/Hour **SPECIALIZED CONVERTERS:** **Clothing Sizes**: International conversions for Shoes, Bra, Ring sizes **Running Pace**: Min/km, Min/mile, km/h, mph conversions **Date Calculator**: Calculate days between dates, add/subtract days **Time Zones**: Convert between world time zones **Dog Food**: Cups to grams for accurate pet feeding **Paper Weight**: GSM, Pound, Point conversions **Oven Temperature**: With cooking presets **Wire Gauge**: AWG with resistance calculations **Screw Sizes**: Metric and Imperial standards **SI Prefixes**: From yocto to yotta **Wind Speed**: Beaufort scale conversions **AR MEASURING FEATURES:** • Measure real-world distances using your camera • Calculate areas of rooms and surfaces • Save measurements for later reference • Share measurements with others • No additional tools required Perfect for students, engineers, chefs, travelers, DIY enthusiasts, and professionals. Unit Conversion Pro handles everything from everyday kitchen measurements to complex engineering calculations. Download Unit Conversion Pro today and never struggle with conversions again! Premium features coming soon!

About

Pencil Notes

Features
Read full description

# Pencil Notes — Your Simple Apple Pencil Notebook Turn your iPad into a simple, distraction-free notebook designed for Apple Pencil. Write naturally, organize your ideas, annotate documents, and export your work — all without subscriptions or complicated setup. ## WRITE NATURALLY Pencil Notes is built around the feeling of writing on real paper. • Write with Apple Pencil • Create unlimited notebooks and pages • Choose blank, lined, dotted, or grid paper • Use a pressure-sensitive pen • Highlight important ideas • Undo and redo with ease • Zoom and pan while writing Whether you're taking notes, planning your day, journaling, brainstorming, or simply sketching, Pencil Notes keeps things simple. ## WRITE ON PDFs Import a PDF and write directly on it with Apple Pencil. Highlight text, add handwritten notes, draw, underline, circle important information, and mark up documents naturally. Perfect for: • Study materials • Lecture notes • Work documents • Forms and worksheets • Research papers • Presentations • Personal documents ## ANNOTATE IMAGES Import an image and use your Apple Pencil to write, draw, mark up, or add notes directly on it. ## EXPORT YOUR WORK When you're finished, export your handwritten pages, PDF annotations, or marked-up images and share them wherever you need. ## PRIVATE BY DESIGN Your notes stay on your iPad. No account required. No subscription. No cloud storage. No ads. Just open the app and start writing. ## MADE FOR EVERYDAY USE Use Pencil Notes for: • Class and lecture notes • Meetings • To-do lists • Journaling • Planning • Brainstorming • Sketching • PDF annotation • Document markup • Personal notes ## SIMPLE BY CHOICE Pencil Notes isn't trying to replace every app on your iPad. It's a simple place to write. Open it. Pick a page. Grab your Apple Pencil. Start writing. **Pencil Notes is available for a one-time purchase — no recurring subscription.**

Screenshots

Unit Conversion4 screens
Pencil Notes3 screens

Verdict

The call

The clearest difference is price: Unit Conversion at Free against Pencil Notes's $0.99. Pencil Notes's advantage is ads (none vs shown) and iOS requirement (15.1 vs 17.6). On 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

CostPrice · In-app purchases · Ads · Monetization

Unit Conversion is free to download; Pencil Notes costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard3 real differences · 3 level
Unit Conversion versus Pencil Notes: the parameters behind the verdict, then further details
ParameterUnit ConversionPencil Notes
PriceFree — better$0.99
Update frequency—Fortnightly
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size55 MB41 MB
Age rating4+4+
DeveloperRicardo ContenteKliv Spahiu

In-app purchases

None

Unit Conversion

No in-app purchases

None

Pencil Notes

No in-app purchases

Questions

Is Unit Conversion free?
Unit Conversion is free to download, with no in-app purchases.
Is Pencil Notes free?
Pencil Notes costs $0.99, with no in-app purchases.
Do Unit Conversion or Pencil Notes have ads?
Unit Conversion shows ads; Pencil Notes does not.

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