Comparison

2FA TOTP Authenticator vs ECHO Survival AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

2FA TOTP Authenticator

Features
Read full description

Simple two-step verification (2FA), OTP (One Time Password) dynamic code generator (currently only supports TOTP), good operating experience, minimalist interface, the data is automatically synchronised to iCloud, do not worry about data theft, loss. There is another WatchApp to sync the data of iPhone, you can view the dynamic verification code on Watch, and it is basically compatible with iPad, and you can sync the data with iPhone through iCloud. Never add adverts or in-app purchases. Other features. - Album QR Code Import - QR code export - Night/Day mode - FaceID/TouchID/lock code verification can be set at startup

About

ECHO Survival AI

Read full description

ECHO is a private, offline survival companion designed to help you think clearly when connectivity is limited or unavailable. Core emergency guides are ready immediately. Download ECHO's conversational model once to ask questions in plain language and receive on-device, step-by-step guidance without sending your conversations to a cloud AI service. GUIDANCE FOR REAL-WORLD SITUATIONS Explore practical guidance for: • Getting lost and deciding whether to stay or move • Finding and treating water • Emergency shelter and exposure • First aid and immediate priorities • Fire, food safety, knots, and signaling • Hiking, climbing, boating, and stranded-at-sea scenarios • Survival priorities when several problems happen at once OFFLINE NAVIGATION Use device sensors and saved local data to support navigation without a network connection: • GPS coordinates and compass heading • Altitude, slope, and air-pressure readings when supported by your device • A lightweight worldwide reference map • Trail recording to help you retrace your route • Battery-aware location accuracy controls CALM, ACTIONABLE GUIDANCE ECHO turns applicable procedures into clear checklists. Mark steps complete, ask for help with a specific step, listen to responses, and share a conversation or checklist when you need to communicate with someone else. PRIVATE BY DESIGN Conversational guidance runs on your device after the model download. Conversations and optional remembered details stay on your device. No account is required. ONE ECHO MODEL There are no confusing model choices. ECHO uses one verified model and can replace older model files after a successful update, helping keep storage under control. BUILT FOR LOW-CONNECTIVITY MOMENTS • Offline emergency guides • On-device conversational guidance after one download • Voice input and read-aloud responses • SOS access to urgent categories • iPhone and iPad support • Performance, memory, heat, and battery optimizations IMPORTANT SAFETY INFORMATION ECHO provides educational suggestions based on established guidance. It does not replace emergency services, professional survival training, or advice from qualified medical professionals. In an emergency, contact local emergency services whenever possible. Conditions differ, sensor readings can be inaccurate, and you remain responsible for decisions made using the app. Some conversational features require a one-time in-app purchase. Core offline emergency guides remain available without the model.

Screenshots

2FA TOTP Authenticator4 screens
ECHO Survival AI4 screens

Verdict

The call

The clearest difference is price: ECHO Survival AI at Free against 2FA TOTP Authenticator's $0.99. ECHO Survival AI also leads on iOS requirement (17.0 vs 26.0). 2FA TOTP Authenticator's advantage is in-app purchases (none vs 2) and update cadence (every 5 weeks vs every 3 months). On ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

ECHO Survival AI is free to download; 2FA TOTP Authenticator costs $0.99 up front. ECHO Survival AI sells 2 one-off in-app purchases. 2FA TOTP Authenticator asks for nothing beyond the download.

UpkeepUpdate frequency

2FA TOTP Authenticator ships an update every 5 weeks, ECHO Survival AI every 3 months. The most recent releases landed on October 19, 2026 and October 9, 2026 respectively.

Scorecard5 real differences · 1 level
2FA TOTP Authenticator versus ECHO Survival AI: the parameters behind the verdict, then further details
Parameter2FA TOTP AuthenticatorECHO Survival AI
Price$0.99Free — better
Update frequencyEvery 5 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS26.017.0 — better
Further details — not scored
Size15 MB97 MB
Age rating4+17+
Developer捷 凌ehsan azish

In-app purchases

None

2FA TOTP Authenticator

No in-app purchases

2 purchases

ECHO Survival AI

One-time2
  • Unlock offline use forever$12.99
  • Full version$12.99

Questions

Is 2FA TOTP Authenticator free?
2FA TOTP Authenticator costs $0.99, with no in-app purchases.
Is ECHO Survival AI free?
ECHO Survival AI is free to download, with in-app purchases available.
Do 2FA TOTP Authenticator or ECHO Survival AI have ads?
Neither 2FA TOTP Authenticator nor ECHO Survival AI shows ads.
Which is updated more often, 2FA TOTP Authenticator or ECHO Survival AI?
2FA TOTP Authenticator ships an update every 5 weeks, and ECHO Survival AI every 3 months. Most recently, 2FA TOTP Authenticator was updated on October 19, 2026 and ECHO Survival AI on October 9, 2026.

Other comparisons