Software Alternatives, Accelerators & Startups

OnlyFlights VS KnowCSS

Compare OnlyFlights VS KnowCSS and see what are their differences

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OnlyFlights logo OnlyFlights

The most affordable, simple, and easy-to-use flight tracking app. No ads, no clutter - just track your flights!

KnowCSS logo KnowCSS

The NoCSS Engine. Never create a css file again.
  • OnlyFlights Best Flight Tracking App
    Best Flight Tracking App //
    2025-06-30
  • OnlyFlights Features
    Features //
    2025-06-30
  • OnlyFlights Simple & User-friendly
    Simple & User-friendly //
    2025-06-30

OnlyFlights is designed with only the most useful features - no distractions, no unnecessary extras. Just simple, efficient flight tracking.

What we offer:

  • Reliable flight tracking (Track any flight in real time with accurate departure, arrival, and route details.)

  • Flight alerts (Get instant notifications for delays, cancellations, gate changes, and other important updates.)

  • Boarding Alerts (Stay on top of your journey with timely reminders for boarding and gate information.)

  • Flight History (Save and access all your past flights anytime, with a detailed travel record.)

  • Countdown widgets (Add our widget to your Home Screen and see exactly how long until your next flight.)

  • Statistics (View insights on your travel habits, including total flights, distance traveled, and favorite airlines.)

  • KnowCSS Landing page
    Landing page //
    2023-07-09

OnlyFlights

$ Details
freemium $1.99 / Monthly ((or $14.99 as an yearly option))
Platforms
iOS iPhone
Release Date
2025 March
Startup details
Country
Poland
City
Bilaystok
Founder(s)
Katsiaryna Huryna, Aliaksandr Huryn
Employees
1 - 9

KnowCSS

Pricing URL
-
$ Details
-
Platforms
-
Release Date
-
Categories

OnlyFlights features and specs

  • Flight Tracking
    Track any flight in real time with accurate departure, arrival, and route details.
  • Flight Alerts
    Get instant notifications for delays, cancellations, gate changes, and other important updates.
  • Boarding Alerts
    Stay on top of your journey with timely reminders for boarding and gate information.
  • Flight History
    Save and access all your past flights anytime, with a detailed travel record.
  • Countdown widgets
    Add our widget to your Home Screen and see exactly how long until your next flight.
  • Statistics
    View insights on your travel habits, including total flights, distance traveled, and favourite airlines.

KnowCSS features and specs

  • Interactive CSS Learning
    KnowCSS provides an interactive way to learn and practice CSS properties and concepts, making it easier for beginners to understand how CSS works through hands-on experimentation.
  • Quick Reference Tool
    The site serves as a handy quick-reference tool for CSS properties, allowing developers to quickly look up syntax, values, and usage examples without digging through lengthy documentation.
  • Visual Demonstrations
    KnowCSS offers visual demonstrations of CSS properties, helping users see the immediate effect of different CSS values, which accelerates understanding of styling concepts.
  • Free to Use
    The platform is freely accessible, making it a cost-effective resource for students, self-taught developers, and anyone looking to improve their CSS skills without financial commitment.
  • Clean and Simple Interface
    The website features a clean, straightforward interface that is easy to navigate, allowing users to focus on learning CSS without being distracted by cluttered design or excessive advertisements.

Possible disadvantages of KnowCSS

  • Limited Depth of Content
    KnowCSS may not cover advanced CSS topics in sufficient depth, which means experienced developers may find the resource too basic for their needs and would need to supplement with other resources.
  • Limited Community and Support
    Compared to larger platforms like MDN Web Docs or CSS-Tricks, KnowCSS has a smaller community, meaning fewer discussions, forums, or peer support for troubleshooting issues.
  • Narrow Scope
    The site focuses specifically on CSS, so users looking for a comprehensive web development learning platform covering HTML, JavaScript, and other technologies will need to use additional resources.
  • Less Frequently Updated
    Smaller niche tools like KnowCSS may not be updated as frequently as major documentation sites, potentially missing coverage of the latest CSS features and specifications.
  • Limited Real-World Project Examples
    The platform may lack complex, real-world project examples that demonstrate how CSS properties work together in practical scenarios, which can leave a gap between learning individual properties and applying them in production.

Analysis of OnlyFlights

Overall verdict

  • OnlyFlights (time2pack.app) appears to be a useful travel-focused tool for finding and comparing flights, but as with any travel service, its value depends on your specific needs and how it compares to established booking platforms. Without extensive independent reviews, it's best treated as a helpful supplementary option worth trying alongside trusted comparison sites.

Why this product is good

  • It focuses specifically on flights, which can streamline the search process for travelers who only need airfare
  • Flight-focused tools often provide cleaner interfaces without the clutter of hotel and package upsells
  • May offer competitive fare comparisons that help you spot deals across multiple airlines
  • Convenient for quick trip planning when you want to check prices and timing without extra steps

Recommended for

  • Frequent flyers who want a dedicated flight search tool
  • Budget-conscious travelers comparing airfares across carriers
  • Solo travelers or those who book flights separately from accommodations
  • People who prefer a simple, focused booking experience over bundled travel packages

Analysis of KnowCSS

Overall verdict

  • KnowCSS is a lightweight, no-frills CSS framework that helps developers quickly style HTML documents without writing custom CSS or dealing with class-heavy frameworks, making it a decent choice for simple, semantic styling needs, though it lacks the extensive ecosystem, community support, and advanced features of more established frameworks like Bootstrap or Tailwind CSS.

Why this product is good

  • Provides classless or minimal-class styling that works directly on semantic HTML elements
  • Lightweight footprint reduces page load times compared to bulkier frameworks
  • Simple to integrate for quick prototypes or small projects without a steep learning curve
  • Encourages clean, semantic HTML markup rather than div-heavy class-based structures

Recommended for

  • Developers building small to medium-sized websites who want quick styling without writing custom CSS
  • Beginners learning HTML/CSS who want to see immediate visual results with minimal setup
  • Projects prioritizing semantic HTML and minimal class usage
  • Quick prototypes, documentation sites, or internal tools where extensive customization isn't required

Category Popularity

0-100% (relative to OnlyFlights and KnowCSS)
Travel
100 100%
0% 0
CSS
0 0%
100% 100
Travel Tools
100 100%
0% 0
HTML
0 0%
100% 100

Questions & Answers

As answered by people managing OnlyFlights and KnowCSS.

Why should a person choose your product over its competitors?

OnlyFlights's answer

You should choose OnlyFlights over other apps because itโ€™s fast, private, and stress-free. Unlike some flight apps, it doesnโ€™t ask you to create an account or show you annoying ads. It gives you just what you need - like real-time flight updates, delay alerts, and a clean travel log - without any extra clutter. Plus, itโ€™s really affordable if you want to track more than two flights. Perfect for travelers who want a simple tool that just works.

What makes your product unique?

OnlyFlights's answer

OnlyFlights is unique because itโ€™s super simple and easy to use. You donโ€™t need to sign up or deal with ads, and it doesnโ€™t track your data. It focuses only on flight tracking, with clean design and useful features like live flight alerts, a countdown to your next flight, and a travel history log. Itโ€™s made for people who just want to track flights without any extra noise.

How would you describe the primary audience of your product?

OnlyFlights's answer

The primary audience for OnlyFlights is travelers who want a simple and reliable way to track their flights. This includes frequent flyers, casual travelers, flight crews, and even people picking someone up from the airport. These travelers care about staying updated but donโ€™t want to deal with ads, sign-ups, or complicated apps.

What's the story behind your product?

OnlyFlights's answer

The story behind OnlyFlights started with Kate and Alex, the creators of the Time2Pack app. At first, they added a flight tracking feature inside Time2Pack, just to help travelers stay more organized. But soon, users began asking for a separate app that focused only on flight tracking. So, after getting lots of feedback, they decided to build OnlyFlights as a standalone app - simple, focused, and designed just for tracking flights without distractions.

User comments

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What are some alternatives?

When comparing OnlyFlights and KnowCSS, you can also consider the following products

Flighty - Live Flight Tracker with alerts

FlightRadar24 - Flightradar24 allows you to track: * Planes moving in real-time

FlightAware - Live Flight Tracking

byAir Travel App - Flight tracking and airport navigation

App in the Air - The perfect companion for everyone taking a flight.

2Flights.io - Track your flights, get instant updates, view travel stats, and compete with friends โ€” all in one app. Available for iOS & Android.