Best authenticator app in 2026
An honest comparison of 7 authenticator apps — what they do well, where they fall short, and which one fits your workflow.
Quick comparison
| App | Push approve | Browser auto-fill | Sharing | Vault options | Pricing |
|---|---|---|---|---|---|
| FactorCat | Yes | Yes | Yes (free) | Cloud Vault + Locked Vault | Free (50 factors), Pro $24/year |
| Google Authenticator | No | No | No | Cloud only (when sync enabled) | Free |
| Authy | No | No | No | Cloud only | Free |
| Microsoft Authenticator | Microsoft accounts only | Password autofill (not TOTP) | No | Cloud only | Free |
| 1Password / Bitwarden | No | Yes (bundled with password fill) | Yes (paid) | Cloud only | $36/year (1P) / Free-$10/year (BW) |
| Ente Auth | No | No | No | E2EE cloud only | Free (open source) |
| 2FAS | Browser push (extension-to-phone) | Yes (via extension) | No | Device-first with cloud backup | Free (open source) |
FactorCat
Platforms
iOS, Android, Chrome extension, Web app
Trust model
Your choice: cloud-managed keys or zero-knowledge
Pros
- + Push approve + auto-fill
- + Two vault models (both free)
- + Factor sharing as viral loop
- + Chrome extension for browser integration
Cons
- - New product (smaller community)
- - No Firefox/Safari extension yet
Google Authenticator
Platforms
iOS, Android
Trust model
Google-managed keys
Pros
- + Pre-installed on many Android devices
- + Simple and lightweight
- + Google account backup
Cons
- - No desktop/browser app
- - No push approve
- - Manual code copying every time
- - No sharing
Authy
Platforms
iOS, Android (desktop discontinued)
Trust model
Twilio-managed keys
Pros
- + Multi-device sync
- + Encrypted backups
Cons
- - Desktop app discontinued (2024)
- - Data breach in 2022
- - No active development
- - No push approve or auto-fill
Microsoft Authenticator
Platforms
iOS, Android
Trust model
Microsoft-managed keys
Pros
- + Push approve for Microsoft/Azure accounts
- + Password manager built in
- + Enterprise integration (Entra ID)
Cons
- - Push approve limited to Microsoft ecosystem
- - TOTP codes still manual copy-paste
- - No desktop app
- - Heavy app (password manager bundled)
1Password / Bitwarden
Platforms
All platforms
Trust model
Zero-knowledge (SRP/master password)
Pros
- + Passwords + TOTP in one app
- + Browser auto-fill
- + Strong encryption model
- + Team/family sharing
Cons
- - TOTP is secondary feature
- - No dedicated approval flow
- - Bundled with password manager (larger attack surface)
- - Paid for most features
Ente Auth
Platforms
iOS, Android, Web, Desktop
Trust model
Zero-knowledge (client-side encryption)
Pros
- + Open source
- + End-to-end encrypted
- + Cross-platform including desktop
- + Import from other apps
Cons
- - No push approve or auto-fill
- - No browser extension
- - No factor sharing
- - Smaller team
2FAS
Platforms
iOS, Android, Browser extension
Trust model
Device-local with optional cloud backup
Pros
- + Open source
- + Browser extension with push
- + No account required
- + Good privacy defaults
Cons
- - Backup relies on Google Drive/iCloud
- - No zero-knowledge vault option
- - No factor sharing
- - Less polished UX
The bottom line
If you want the least friction, FactorCat is the only authenticator that combines push-approve with browser auto-fill. You never copy a code again.
If you want maximum privacy and open source, Ente Auth is a solid choice with end-to-end encryption and cross-platform support.
If you're already deep in the Microsoft ecosystem, Microsoft Authenticator gives you push approve for Azure/Entra — but only for Microsoft accounts.
If you just need something simple and already have it installed, Google Authenticator works. But you'll be copying codes manually for every single login.
Ready to try FactorCat?
Free for up to 50 factors. Push approve. Browser auto-fill. Your choice of vault.