Comparison

Mila's Unit Converter PRO vs FG91 Fastream

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

Head to head
About

Mila's Unit Converter PRO

Effortlessly convert between hundreds of units across 26 essential categories with this precision calculator. Designed for speed and simplicity, it offers accurate results in seconds for students, professionals, and travelers alike. Enjoy offline functionality and a customizable experience.

Highlights
  • Hundreds of units across 26 categories
  • Metric, imperial, and specialized units
  • Smart conversions for temperature, fuel, and more
  • Customizable categories, units, and number formats
  • Intuitive search and offline functionality
  • Conversions happen as you type
Features
Read full description

Transform everyday calculations with Mila's Tools, the ultimate all-in-one unit converter designed for precision, speed, and simplicity. Whether you're a student, engineer, chef, or traveler, effortlessly convert between hundreds of units across 26 essential categories. Say goodbye to complex formulas—get accurate results in seconds! ------------------------------------- What customers are saying: ***** "Get it! Nothing better than this!" ***** "This is the best quick ref tool I have come across to date" ***** "Undoubtedly the best conversion app in the App Store." ***** "Best app for me so far." ***** "Intuitive interface. The app design is so easy you'll actually use it." ------------------------------------- KEY FEATURES: * Comprehensive Categories: Convert area, bits & bytes, blood sugar, capacitance, dates, data transfer rates, density, energy, flow rate, force, fractions, fuel, illuminance, length, numbers, power, pressure, shoes, slope, temperature, time, torque, velocity, volume, and weight. * Vast Unit Library: Supports metric, imperial, US customary, astronomical, nautical, and specialized units like barns, barns, light years, parsecs, and more. * Smart Conversions: Special tools for temperature (Celsius to Fahrenheit), fuel (mpg to L/100km), fractions (to decimals/percent), blood sugar (mg/dL to mmol/L with range slider), and grouped views for length, weight, volume, area, pressure, and torque. * Customizable Experience: Toggle visible categories and units, adjust decimal precision (auto or up to 10 digits), choose number formats (US, European, Swiss, French, Indian), and enable dark mode. * Intuitive Search: Quickly find categories and units with built-in search. * No Internet Needed: All conversions happen offline for reliable use anywhere. * Made in America! Download Mila's Tools today and simplify your conversions—built with love to make life easier. Questions? Send feedback via the app! ------------------------------------- * 300+ CONVERSIONS * Includes everything from Area to Weight. * FASTEST CONVERTER AVAILABLE * No need to "submit" values. Conversions happen as you type. * NO DIALS * Nothing to dial in, Just select the unit category and go. * ACTIVE FILTERING * Find what you're looking for quickly. * AUTO CONVERTS MULTIPLE UNITS AS YOU TYPE * All associated units auto-convert as you enter any value. * FULLY CUSTOMIZABLE * Hide everything you don't need and show only what you need. -------------------------------------

About

FG91 Fastream

Features
Read full description

FG91 Fastream is the new app to stream your onboard race, test and drive. It's made for am. and pro racers (only). You can stream with your team or with other user of the webplatform fg91motorsport.com. Corporate information: FG91 Motorsport is a new Italian outsource for all the Motorsport Teams, supplying all the professional roles involved on this business, even for a single event/day either on track or at the workshop. Expertise technician for all the categories and championship: Single-Seater cars, Prototypes, Touring cars, GTs and Rally cars.

Screenshots

Mila's Unit Converter PRO4 screens
FG91 Fastream4 screens

Verdict

The call

The clearest difference is price: FG91 Fastream at Free against Mila's Unit Converter PRO's $9.99. FG91 Fastream also leads on iOS requirement (11.0 vs 17.6). Mila's Unit Converter PRO's advantage is update cadence (every 4 days vs every 19 months). On 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

CostPrice · In-app purchases · Ads · Monetization

FG91 Fastream is free to download; Mila's Unit Converter PRO costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Mila's Unit Converter PRO ships an update every 4 days, FG91 Fastream every 19 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

Scorecard3 real differences · 7 level
Mila's Unit Converter PRO versus FG91 Fastream: the parameters behind the verdict, then further details
ParameterMila's Unit Converter PROFG91 Fastream
Price$9.99Free — better
Rating4.8 (1K ratings) — better—
Positive reviews89.9% of reviews—
Number of ratings1K — better—
Update frequencyEvery 4 days — betterEvery 19 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.611.0 — better
Further details — not scored
Size5 MB117 MB
Age rating4+4+
DeveloperScott DeSapioStudio Reclame S.r.l.

In-app purchases

None

Mila's Unit Converter PRO

No in-app purchases

None

FG91 Fastream

No in-app purchases

Questions

Is Mila's Unit Converter PRO free?
Mila's Unit Converter PRO costs $9.99, with no in-app purchases.
Is FG91 Fastream free?
FG91 Fastream is free to download, with no in-app purchases.
Do Mila's Unit Converter PRO or FG91 Fastream have ads?
Neither Mila's Unit Converter PRO nor FG91 Fastream shows ads.
Which is updated more often, Mila's Unit Converter PRO or FG91 Fastream?
Mila's Unit Converter PRO ships an update every 4 days, and FG91 Fastream every 19 months. Most recently, Mila's Unit Converter PRO was updated on November 6, 2026 and FG91 Fastream on November 7, 2026.

Other comparisons