---
title: "2FA Authenticator (2FAS) — App Overview"
url: https://marlvel.ai/intel-report/productivity/2fa-authenticator-2fas
category: Productivity
developer: Two Factor Authentication Service Inc.
platforms: ios
rating: 4.7 (33.4K ratings)
pricing: free
report_level: overview
generated: 2026-04-14
---

<!-- SECTION: Key Insight -->
> **Key Insight:** 2FAS provides a transparent, open-source, and anonymous 2FA solution that prioritizes user privacy and cross-platform accessibility.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Productivity |
| Rating | 4.7 ★ (33.4K) |
| Pricing | free |
| Platforms | iOS |
| Latest Version (iOS) | 5.4.2 |
| Developer | Two Factor Authentication Service Inc. |

<!-- SECTION: Summary -->
## What is 2FA Authenticator (2FAS)?

2FAS is an open-source, privacy-focused authenticator app that secures online accounts using TOTP and HOTP algorithms. It distinguishes itself by operating entirely offline without storing user metadata or passwords, while offering seamless cross-device synchronization and browser extension integration.

<!-- SECTION: Key Features -->
## Key Features

- **Security Protocols**: Supports industry-standard TOTP and HOTP algorithms to protect accounts from cyber threats.
- **Browser Integration**: Enables one-tap authentication through dedicated 2FAS browser extensions.
- **Privacy-First Architecture**: Functions completely offline without requiring user accounts or storing passwords and metadata.
- **Backup and Sync**: Allows for easy token restoration via backups and synchronization across multiple mobile devices.
- **App Protection**: Secures the authenticator itself using biometric authentication or a custom passcode.

<!-- SECTION: Target Audience -->
## Who is it for?

Privacy-conscious users seeking a secure, free, and simple solution for managing multi-factor authentication across multiple devices.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/2fa-authenticator-2fas/id1217793794?uo=4)
- [Full Intelligence Report](https://marlvel.ai/intel-report/productivity/2fa-authenticator-2fas)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/productivity/2fa-authenticator-2fas).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*