Comparison

IIJ SmartKey vs TimeKey

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

Head to head
About

IIJ SmartKey

This app generates one-time passwords for two-step verification, enhancing online security. It supports TOTP standards and offers slide authentication for convenient logins. Additional features include app locking and cross-device data backup.

Highlights
  • Generates TOTP one-time passwords
  • Supports slide authentication
  • App locking with Touch ID/passcode
  • Cross-device data backup
  • Compatible with Google Authenticator
Features
Read full description

Only enterprise user needs to register your device. You can skip registering your device, if you don't need it. The IIJ SmartKey app produces one-time passwords that conform to TOTP (RFC 6238) standards and can be used in the 2-step verification processes of a variety of online services supporting TOTP. Strengthen your online service security by linking this app, installed to your smartphone device, with your ID/password verification processes. Slide authentication can be used (ver 2.0). When logging in to a service that supports slide authentication, you will receive a push notification on your smartphone. Then you can pull the service icon for 2-step verification. For details, please visit http://www.iij.ad.jp/biz/smartkey-m/ (Written in Japanese). * To use slide authentication, you must register your device. ■ Special Features * Protects against unauthorized access by allowing the user to lock the app using a Touch ID or passcode. * Supports device changes and data backups by handing over settings between devices. * Compatible with the Google Authenticator (TOTP authentication). * Supports slide authentication. * Easy to see and read, simple and refined design. ■ Confirmed Supported Services (TOTP authentications) * Amazon Web Services * Dropbox * Evernote * Facebook * GitHub * Google Accounts * Google Apps for Work * IIJ Omnibus * IIJ Secure MX Service * Microsoft Accounts * Slack * WordPress.com ■ Confirmed Supported Services (Slide authentications) * Additional details on available services is expected soon. ■■ Please make sure to read the information below before using the app. * When switching devices, please check the app help page (https://www1.auth.iij.jp/smartkey/en/help_v2.html) before transferring service settings from your old device to the new one. * Please ensure that you confirm service restoration procedures for the various online services you utilize in advance to protect yourself against cases in which you are unable to complete the 2-step verification process due to device loss or accidental deletion of service settings. * When backing up this app to iTunes, it is necessary to encrypt the backup files. This app does not support backups to the iCloud service. ■User Agreement All users of this app must consent to the User Agreement found below before using the app. https://www1.auth.iij.jp/smartkey/en/agreement_v2.html ----- Mentioned company names and service names are the trademarks or registered trademarks of their respective companies.

About

TimeKey

This app generates secure Time-based One-Time Passwords (TOTP) for two-factor authentication, protecting your online accounts. It offers local data storage, biometric security, and an intuitive interface for easy account management and quick code access. No internet connection is needed for code generation.

Highlights
  • Generate secure TOTP codes
  • Import accounts via QR code or manual entry
  • Organize accounts with categories and favorites
  • Biometric authentication (Face ID/Touch ID)
  • Passcode protection
  • Dark mode support
  • Export QR codes for backup
Features
Read full description

TimeKey is a secure and easy-to-use TOTP (Time-based One-Time Password) authenticator app that helps protect your online accounts with two-factor authentication. KEY FEATURES: • Generate secure TOTP codes for two-factor authentication • Import accounts by scanning QR codes or entering details manually • Organize accounts with custom categories and favorites • Biometric authentication (Face ID/Touch ID) for added security • Passcode protection for app access • Dark mode support • Export QR codes for backup purposes • No internet connection required for code generation SECURITY FIRST: • All data is stored locally on your device • Biometric authentication support • Passcode protection • No cloud sync to prevent data breaches EASY TO USE: • Clean and intuitive interface • Quick search functionality • One-tap code copying • Custom categories for organization • Favorite accounts for quick access COMPATIBILITY: • Works with all services that support TOTP/RFC 6238 • Compatible with Google Authenticator, Authy, and other authenticator apps • Supports various hash algorithms (SHA1, SHA256, SHA512) • Customizable code length and time periods TimeKey is perfect for securing your accounts on services like Google, Facebook, Twitter, GitHub, Dropbox, and many more. Keep your digital life secure with TimeKey!

Screenshots

IIJ SmartKey4 screens
TimeKey3 screens

Verdict

The call

The clearest difference is in-app purchases: IIJ SmartKey at none against TimeKey's 2. IIJ SmartKey also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). TimeKey's advantage is update cadence (every 6 weeks vs every 9 months). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. TimeKey sells 2 in-app purchases, starting at $1.49 per month. IIJ SmartKey asks for nothing beyond the download.

UpkeepUpdate frequency

IIJ SmartKey ships an update every 9 months, TimeKey every 6 weeks. The most recent releases landed on October 7, 2026 and September 15, 2026 respectively.

Scorecard5 real differences · 5 level
IIJ SmartKey versus TimeKey: the parameters behind the verdict, then further details
ParameterIIJ SmartKeyTimeKey
PriceFreeFree
Rating—3.7 (3 ratings) — better
Positive reviews10.0% of reviews—
Number of ratings—3 — better
Update frequencyEvery 9 monthsEvery 6 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size19 MB55 MB
Age rating4+4+
DeveloperInternet Initiative Japan, Inc.Naoki Chiba

Customer experience

IIJ SmartKey

Written reviews20 reviews
Positive10.0%
Neutral5.0%
Negative85.0%

TimeKey

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

IIJ SmartKey

No in-app purchases

2 purchases

TimeKey

Subscriptions2
  • Premium 1 month$1.491 Month
  • Premium 1 year$13.491 Year

Questions

Is IIJ SmartKey free?
IIJ SmartKey is free to download, with no in-app purchases.
Is TimeKey free?
TimeKey is free to download, with in-app purchases available.
Do IIJ SmartKey or TimeKey have ads?
TimeKey shows ads; IIJ SmartKey does not.
Which is updated more often, IIJ SmartKey or TimeKey?
IIJ SmartKey ships an update every 9 months, and TimeKey every 6 weeks. Most recently, IIJ SmartKey was updated on October 7, 2026 and TimeKey on September 15, 2026.

Other comparisons