OTPfill vs 30 Seconds of Knowledge

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

OTPfill compared with 30 Seconds of Knowledge
Detail	OTPfill	30 Seconds of Knowledge
What it does	Autofill OTP codes from your email	Keep your engineering skills sharp with one real code snippet on every new tab
Stage	Not given	Not given
Founded	Not given	Not given
Based in	US	Not given
Pricing model	Paid	Free
Pricing	Free for 7 days, then $29 one-time payment. Includes two inboxes and updates. Unlimited inboxes available for $5 per month.	Free
Key features	Autofills one-time passcodes from email Auto-fills codes from the current site Reads only recent emails from last three minutes Does not store or log email contents	Support for JavaScript, Python, React, Git, C++, C#, CSS, Dart, Go, HTML, PHP, and Interview Questions Live Preview for CSS snippets Random snippet or browse favorites and all snippets Available on Chrome, Firefox, Edge, Brave, and Arc Open source project on GitHub
What makes it different	One-time purchase model with no subscription required	Helps prevent engineering skill atrophy in the age of AI One real code snippet delivered every new tab without requiring courses or streaks 25,000+ developers using the extension with 1,000+ GitHub stars Featured as #2 Product of the Day on Product Hunt 5-star rating on Chrome Web Store
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	9 no change since last check	9 no change since last check
Trust Flow (Majestic)	6	4
Citation Flow (Majestic)	11	20
Referring domains (Majestic)	10	73

5 details filled in for both companies.