People look for Google Authenticator alternatives mainly because of backup worries, reports of lost or duplicated accounts, and thin support. The apps below all share its core job: scan a QR code, generate time-based one-time passwords (TOTP), and store 2FA tokens for your accounts. The big differentiators are cloud backup, encrypted vaults, push-based approvals, and how proven each base is. We ranked them using embedding similarity against Google Authenticator's 2FA model, then weighed live App Store ratings and how many people use each one. The top picks mirror its scan-and-generate flow most closely. Pricing and ratings beside each app come straight from the live store.
How we ranked these 10 alternatives
Embedding similarity
Every app in our database carries a dense vector embedding derived from its title, subtitle, full description, and category metadata. To find apps similar to Google Authenticator, we compute cosine distance against every other app and surface the closest 60 candidates. The similarity score shown on each pick is 1 - distance/2 clamped to [0,1] — 100% means the embedding spaces are identical, 0% means orthogonal.
Re-ranking signals
We then re-rank the candidate set using current App Store rating and review-count signals so a 4.8-star app with 100,000 reviews ranks above a 4.5-star app with 200 reviews even when their embedding distance is similar. Apps that haven't shipped an update in 12 months are filtered out before re-ranking.
Refresh cadence
The similarity cache is recomputed weekly. Live App Store data (rating, review count) is verified every 6 hours.
What we don't do
No paid placements. No affiliate links. No sponsored picks. Read our full methodology.