Manage two-factor authentication codes with OTP Auth, an iOS app listed on the App Store.
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vsLucia
challenges.re vs Lucia
How do challenges.re and Lucia compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | challenges.re | Lucia |
|---|---|---|
| What it is | Solve reverse engineering challenges published on challenges.re, a challenge-focused site. | Lucia was deprecated in March 2025. The website was updated in July 2026 and points to code/auth_session.ts as a single-file replacement for the NPM package and to the Auth Book for auth information. |
| Website | ||
| Type | Website | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | — | English |
| Alternatives |
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24 alternatives
GoPlus offers Web3 security tools including audits, APIs, a user security hub, and a browser extension.
Search the National Vulnerability Database, a public resource for vulnerability information.