Software Alternatives, Accelerators & Startups

OnlyFlights VS assertpy

Compare OnlyFlights VS assertpy 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!

assertpy logo assertpy

A straightforward assertion library for Python.
  • 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.)

  • assertpy Landing page
    Landing page //
    2022-11-06

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

assertpy

Website
github.com
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.

assertpy features and specs

  • Fluent API
    Assertpy offers a fluent API that makes assertions more readable and expressive, enabling developers to write assertions in a natural language style that is easy to understand.
  • Chainable Assertions
    It allows for chainable assertions, enabling multiple checks to be performed in a single line of code, thereby reducing verbosity and enhancing clarity.
  • Comprehensive Assertion Methods
    The library provides a wide range of built-in assertion methods, catering to various types of data validations, such as checking for size, type, value, and more.
  • Extensibility
    Assertpy supports extending its functionality by defining custom assertions, allowing developers to tailor it to their specific needs.
  • Pythonic
    Designed with Pythonic principles in mind, Assertpy fits seamlessly into Python projects, enabling idiomatic and consistent code style.

Possible disadvantages of assertpy

  • Learning Curve
    Developers new to the library may encounter a learning curve due to the distinct approach of using fluent and chainable assertions as opposed to traditional methods.
  • Limited by Python Version
    The library may have limitations in terms of compatibility with older versions of Python, requiring users to ensure their environment is up-to-date.
  • Performance Overhead
    The additional abstraction layer introduced by a fluent interface might introduce some performance overhead, especially in performance-critical or resource-constrained environments.
  • Less Community Support
    Compared to more established testing libraries, Assertpy might have less community support and fewer resources available for resolving issues or getting help.
  • Dependency Management
    Using a third-party library introduces additional dependencies to manage, which could complicate project maintenance and compatibility.

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 assertpy

Overall verdict

  • assertpy is a well-regarded, lightweight assertion library for Python that provides a fluent, chainable API for writing readable and expressive test assertions, making it a solid choice for improving test clarity.

Why this product is good

  • Offers a fluent, chainable assertion syntax that makes tests more readable and self-documenting
  • Comprehensive built-in assertions for strings, numbers, lists, dicts, files, dates, and more
  • Produces clear, descriptive failure messages that speed up debugging
  • Lightweight with minimal dependencies and easy to integrate into existing test suites
  • Framework-agnostic, working seamlessly with pytest, unittest, and other test runners
  • Actively maintained open-source project with good documentation and community support

Recommended for

  • Python developers who want more readable and expressive test assertions
  • Teams using pytest or unittest looking to enhance assertion clarity
  • Projects that value descriptive failure messages for faster debugging
  • Developers coming from fluent assertion libraries in other languages (like AssertJ or Chai)
  • QA engineers and testers writing maintainable, self-documenting test code

Category Popularity

0-100% (relative to OnlyFlights and assertpy)
Travel
100 100%
0% 0
Testing
0 0%
100% 100
Travel Tools
100 100%
0% 0
Python
0 0%
100% 100

Questions & Answers

As answered by people managing OnlyFlights and assertpy.

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 assertpy, you can also consider the following products

Flighty - Live Flight Tracker with alerts

grappa - grappa is an declarative, verbose, and expressive assertion library for Python.

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.