2FA Authenticator vs Seiri
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
2FA Authenticator
This app provides robust digital security for your online accounts using end-to-end encryption. It simplifies adding accounts, securely backs up and syncs your data, and offers offline password generation. Manage all your passwords and generate strong ones with ease.
- Effortless account addition via QR code
- Secure data backup and cross-device sync
- Offline one-time password generation
- Password manager for central organization
- Customizable strong password generator
- Face ID and Touch ID secure access
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Authenticator App - Your Digital Security Guardian! Our authenticator app employs industry-leading end-to-end encryption to deliver security for your online accounts, ensuring every online interaction is safe and secure. Key Features: ● Effortless Account Addition: Simply scan a QR code to add accounts and receive one-time passwords (TOTP) for two-factor or multi-factor authentication (2FA/MFA). ● Secure Data Backup and Sync: Create encrypted backups on iCloud to ensure data security and synchronize across devices, providing access to important information anytime, anywhere. ● Robust Privacy Protection: Advanced encryption safeguards your in-app data, supports unique digital passwords, and offers quick, secure access via Face ID and Touch ID. ● Offline Password Generation: Generate one-time passwords (TOTP) stored locally, enhancing account security without the need for an internet connection. ● Extensive Platform Support: Compatible with thousands of major services, including Google, Facebook, Amazon, and Microsoft. ● Password Manager: Centrally manage various account passwords, organized for efficiency and security. ● Customizable Password Generator: Generate complex passwords with a single click, customizable in length and character types, ensuring robust account protection. Premium Membership Subscription: ● Payment will be charged to your iTunes account upon confirmation of purchase. ● Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. ● Your account will be charged for renewal within 24 hours prior to the end of the current period at the selected plan rate. ● Subscriptions can be managed by the user, and auto-renewal can be turned off by going to the user’s account settings after purchase. Relevant Agreements: ● Terms of Use: https://docs.qq.com/doc/DRHhqWFRCYkVSTXNk ● Privacy Policy: https://docs.qq.com/doc/DRGZ1U3FJWVhDY2RN Contact Us: For any questions or assistance, please contact us at watchaihelp@outlook.com. Act Now to Safeguard Your Digital Life!
Seiri
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Inspired by the Japanese 整理 (organize) — the first step of the 5S method, popularized in the West by Marie Kondo. Most address books grow for years and never get cleaned because the task feels too big to do all at once. Seiri makes it one decision at a time. WHAT SEIRI DOES • One contact at a time, three decisions: discard, keep, favorite • Swipe the card or tap a button — your choice • A local trash holds discarded contacts for 30 days, so nothing is lost by accident • Restore brings a contact back with full fidelity (photo, addresses, related people, social profiles, notes) • Permanent delete clears the trash record when you are sure • Light, dark, and system appearance • 8 languages: English, Portuguese (Brazil), Japanese, Spanish, French, German, Italian, Simplified Chinese PRIVACY • Zero collection • Asks for one permission: Contacts (read and write) • No account, no backend, no analytics, no third-party SDKs, no network requests • Your address book and your decisions stay on your iPhone Made by FALL Engenharia. Proprietary software, distributed free under Apple's standard EULA.
Screenshots
Verdict
The clearest difference is in-app purchases: Seiri at none against 2FA Authenticator's 4. 2FA Authenticator's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support 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
Both are free to download. 2FA Authenticator sells 4 in-app purchases, starting at $4.99 per 7 days. Seiri asks for nothing beyond the download.
| Parameter | 2FA Authenticator | Seiri |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 71.7% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 32 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | 朝虹 陈 | FILIPE AUGUSTO DA LUZ LEMOS |
In-app purchases
2FA Authenticator
- Authenticator Weekly3 Days trial$4.997 Days
- Authenticator - Weekly3 Days trial$4.997 Days
- Authenticator Yearly$39.991 Year
- Authenticator Lifetime$39.99
Seiri
No in-app purchases









