OrbitCalc vs Feynman WTF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OrbitCalc
This tool helps space enthusiasts, engineers, and researchers precisely calculate satellite orbits. It allows users to determine orbital parameters from vector data or vice versa with accurate results. Save and manage your calculations, and customize measurement units for a personalized experience.
- Orbital calculations from parameters or vectors
- Save and revisit previous calculations
- History page for managing saved work
- Customizable measurement units
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OrbitCalc – Satellite Orbit Calculator OrbitCalc is a powerful and intuitive tool designed for space enthusiasts, engineers, and researchers to calculate satellite orbits with precision. Whether you need to determine orbital parameters from vectors or vice versa, OrbitCalc provides accurate results in just a few taps. Key Features: • Orbital Calculations – Compute satellite orbits based on orbital parameters or vector data effortlessly. • Save Your Calculations – Keep track of your work and revisit previous calculations anytime. • History Page – View and manage all your saved calculations in one place. • Customizable Measurement Units – Adjust unit preferences to suit your needs. Whether you're a student, researcher, or space professional, OrbitCalc is your go-to app for orbital mechanics calculations. Download OrbitCalc today and explore the universe with precision!
Feynman WTF
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Finding great research shouldn’t feel like digging through an academic jungle. Feynman makes discovering cutting-edge science as easy as scrolling social media—minus the doomscrolling. Our app brings you daily research papers from arXiv, each one summarized in just 60 words. No jargon. No fluff. Just the key insights, delivered in a feed that respects your time and fuels your curiosity. Whether you're a student, researcher, or just a curious mind, Feynman helps you: Explore smarter: Browse papers across AI, physics, math, and more—handpicked and summarized by AI. Save time: Cut through academic clutter. Every summary is bite-sized and to the point. Stay sharp: Swap endless scrolling with daily doses of insight. Bookmark & personalize: Save your favorites and tailor your feed to topics you love. Built for the mobile generation. Backed by real research. Inspired by Feynman's love of clarity and curiosity. Join the club. Scroll smarter. Think deeper. Feynman is your shortcut to the best minds on arXiv—compressed for your brain. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.termsfeed.com/live/0ece6d3b-97bb-403c-a992-0ca298425796
Screenshots
Verdict
The clearest difference is device support: Feynman WTF at 3 against OrbitCalc's 1. Feynman WTF also leads on iOS requirement (15.1 vs 18.0). On price, ads and in-app purchases 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
Both are free to download. OrbitCalc sells 1 one-off in-app purchase and Feynman WTF sells 2 in-app purchases, starting at $10.00 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | OrbitCalc | Feynman WTF |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 11 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Bian Dhoan Kwik | Vrushal Kapadnis |
In-app purchases
OrbitCalc
- OrbitCalc Pro$0.99
Feynman WTF
- Pro Monthly$10.001 Month
- Pro Yearly$99.991 Year
Questions
Is OrbitCalc free?
Is Feynman WTF free?
Do OrbitCalc or Feynman WTF have ads?
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