Comparison

Unit Converter vs Flip Unit

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

Head to head
About

Unit Converter

Easily convert measurements between various units with a clean and intuitive interface. Supports over 20 categories including length, mass, temperature, and volume.

Highlights
  • Converts between units
  • Supports 20+ categories
  • Clean interface design
  • Intuitive navigation
  • Free to use
Features
Read full description

A simple but elegant Free Unit Converter. Convert the numbers from one unit to another. The goal of this application to make it simple to use with clean interface design.  Application supports 20 different categories which includes :  * Acceleration * Angle * Area * Bytes * Current * Energy * Force * Illumination * Inductance * Length * Magnitude * Mass * Power * Pressure * Radiation * Temperature * Time * Torque * Velocity * Volume Tip: Quickly move to the different category by tapping on category name.

About

Flip Unit

Easily convert units across 12 categories including cooking, currency, and distance. Access conversions on your iPhone, Apple Watch, and home screen widgets. This app offers a clean interface and works offline for most conversions.

Highlights
  • 12 conversion categories
  • Apple Watch app and complications
  • iPhone home screen widgets
  • Offline conversion (except currency)
  • No ads or tracking
  • iCloud sync
Features
Read full description

Flip Unit: The unit converter built for everyone. Convert across 12 categories — cooking, distance, temperature, weight, area, volume, currency, pressure, power, speed, data, and fuel consumption — on your iPhone, Apple Watch, home screen, and lock screen. All for free. No ads, no tracking, no account required. NEW IN VERSION 2.0 • Apple Watch app — full converter on your wrist with haptic feedback • 12 Apple Watch complications — one-tap access to any category right from your watch face • 7 widgets for iPhone — quick-launch any category from your home screen, plus live currency rates on home and lock screens • iCloud sync — preferences and history across your iPhones and iPads, invisibly • 5 new categories: Pressure, Power, Speed, Data Storage, Fuel Consumption • Background rate refresh — currency widgets stay up to date without opening the app CONVERSIONS INCLUDED • Area — square feet, meters, acres, hectares • Cooking — cups, ml, tablespoons, grams, with ingredient-specific weights for flour, sugar, rice, butter, and more • Currency — 162+ currencies with live rates • Data / Storage — KB, MB, GB, TB (decimal and binary) • Distance — miles, km, feet, meters • Fuel Consumption — MPG (US & UK), L/100km, km/L • Power — watts, kilowatts, horsepower • Pressure — PSI, bar, atmospheres, pascal • Speed — mph, km/h, knots, m/s • Temperature — Fahrenheit, Celsius, Kelvin • Volume — litres, gallons, pints, fluid ounces (US & Imperial) • Weight — lbs, kg, ounces, grams WHY FLIP UNIT? • Lightning fast • Remembers your last-used units per category, on every device • Clean, simple interface • Works offline (except currency rates) • No account required • No ads or tracking Perfect for cooking, travel, business, home improvement, and everyday use. ACCESSIBILITY FIRST Flip Unit is designed for blind and low-vision users from the ground up. Full VoiceOver support, haptic feedback on iPhone and Apple Watch, Reduce Motion awareness, Dynamic Type, and WCAG AA contrast.

Screenshots

Unit Converter4 screens
Flip Unit4 screens

Verdict

The call

The clearest difference is review sentiment: Flip Unit at 100% against Unit Converter's 0%. Flip Unit also leads on rating (5.0 vs 1.0) and update cadence (monthly vs every 28 months). Unit Converter's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 17.6). On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Flip Unit holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Flip Unit has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Unit Converter's written reviews are positive against 100% of Flip Unit's.

UpkeepUpdate frequency

Unit Converter ships an update every 28 months, Flip Unit monthly. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.

Scorecard6 real differences · 4 level
Unit Converter versus Flip Unit: the parameters behind the verdict, then further details
ParameterUnit ConverterFlip Unit
PriceFreeFree
Rating1.0 (1 ratings)5.0 (7 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings17 — better
Update frequencyEvery 28 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS11.0 — better17.6
Further details — not scored
Size30 MB6 MB
Age rating4+4+
DeveloperDipen PatelSIRAJ SALIM

Customer experience

Unit Converter

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Flip Unit

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Unit Converter

No in-app purchases

None

Flip Unit

No in-app purchases

Questions

Is Unit Converter free?
Unit Converter is free to download, with no in-app purchases.
Is Flip Unit free?
Flip Unit is free to download, with no in-app purchases.
Which has better reviews, Unit Converter or Flip Unit?
Flip Unit is rated higher. Unit Converter averages 1.0 out of 5 from 1 ratings, while Flip Unit averages 5.0 from 7 ratings.
Do Unit Converter or Flip Unit have ads?
Neither Unit Converter nor Flip Unit shows ads.
Which is updated more often, Unit Converter or Flip Unit?
Unit Converter ships an update every 28 months, and Flip Unit monthly. Most recently, Unit Converter was updated on November 7, 2026 and Flip Unit on November 9, 2026.

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