Best Castle App Login

204+ iOS apps & games curated and reviewed

4.1 avg rating
20 free apps & games
Updated May 2026

From beginner-friendly picks to power-user tools, our castle app login list covers 204+ iPhone apps and games updated through May 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Castle App Login

Grow Castle!#1

Grow Castle! by YONG OK PARK

Editor's Choice
🎮 Games
4.5😊(2.2K ratings)
FreeAdsIn-App Purchases
Grow Castle! screenshot 1
Grow Castle! screenshot 2
Grow Castle! screenshot 3

Defend your castle from waves of enemies by strategically placing heroes and archers. Upgrade your defenses and recruit over 80 unique heroes, each with special skills, to create powerful combinations and climb the global rankings.

What We Love

  • 👍 Fun and addictive gameplay
  • 🚀 Offline playability
  • 💎 Good free-to-play model with optional purchases
  • 🕹 Simple yet engaging tower defense mechanics

Room to Improve

  • 🐛 Occasional bugs and glitches
  • 🕰 Slow progression without paying
  • 🔍 Lack of in-depth tutorials
Authenticator App +#2

Authenticator App + by Accebits Tech Limited

Authentication App, Copilot
Strong Contender
💼 Business
3.4😞(1.2K ratings)
FreeIn-App Purchases
Authenticator App + screenshot 1
Authenticator App + screenshot 2
Authenticator App + screenshot 3
Authenticator App + screenshot 4
Authenticator App + screenshot 5
Authenticator App + screenshot 6

Secure your online accounts with an authentication and password management tool. It offers AI assistance for setup, generates strong passwords, and detects data leaks and phishing sites. Access is secured with biometric authentication.

Room to Improve

  • 💰 Paid subscription required
  • ⚠️ Deceptive advertising
  • 🚫 Doesn't work as expected
Authenticator ℠ App#3

Authenticator ℠ App by BEGAMOB GLOBAL LIMITED

2FA, Two Factor Authentication
Worth Considering
🔧 Utilities
4.3(4K ratings)
FreeAdsIn-App Purchases
#14in Utilities
Authenticator ℠ App screenshot 1
Authenticator ℠ App screenshot 2
Authenticator ℠ App screenshot 3
Authenticator ℠ App screenshot 4
Authenticator ℠ App screenshot 5
Authenticator ℠ App screenshot 6

Secure your online accounts with standards-based two-factor authentication. This app generates time-based one-time passwords directly on your device, offering a reliable second step for sign-ins without relying on SMS codes. Protect personal and work accounts across various platforms.

More Castle App Login apps to explore

4
Authenticator App - OneAuth
Authenticator App - OneAuth
Authenticator App - OneAuth
Secure your online accounts
Free

Secure your online accounts with industry-standard two-factor authentication. Easily add accounts, generate time-based OTPs, and benefit from encrypted backups. Organize and manage your TFA with features like folders, brand logos, and search.

Add accounts via QR code or manual entryTime-based OTPs (offline access)Encrypted backup and secure recovery
🔧 Utilities
(33K)
free
5
Authenticator™ App
Authenticator™ App
Authenticator™ App
Authenticator App
Free

This app generates secure, time-based one-time passwords for two-factor authentication. It supports automatic setup via QR code and works offline, synchronizing across Apple devices with iCloud backup and encryption.

Automatic QR code setupOffline code generationiCloud Backup & Encryption
🔧 Utilities
(239)
free with in-app purchases
6
Warwick Castle
Warwick Castle
Warwick Castle
Britain’s Ultimate Castle
Free

Plan your visit to a historic castle with this official app. Access show times, navigate with a detailed map, and discover exclusive offers. Upgrade your experience with add-on attractions for a more immersive visit.

Purchase tickets and short breaksAdd tickets to the app for easy entryView show times and set reminders
✈️ Travel
(36)
free with in-app purchases
7
My Authenticator app
My Authenticator app
My Authenticator app
2FA & MFA Authentication
Free

This app provides two-factor authentication (2FA) to secure your online accounts. It generates one-time passcodes for logging into various websites and services, offering enhanced protection beyond traditional passwords. Features include multi-account support, iCloud backup, and home screen widgets.

Secure multiple accountsGenerate one-time passcodesCompatible with 100+ services
📊 Productivity
(527)
subscription
8
Defend the Castle: Card TD
Defend the Castle: Card TD
Defend the Castle: Card TD
Deck-builder Tower Defense!
Free

Build a powerful deck of tower cards to defend your castle from waves of enemies. Combine cards to create stronger towers, level them up, and strategize to overcome increasingly difficult foes and bosses. Engage in PvP battles or team up with friends in alliances.

Deck buildingTower card collectionCard fusion and leveling
🎮 Games
(54)
free with in-app purchases
9
Outdo.io
Outdo.io
Outdo.io
Be the biggest castle and win!
Free

Build and upgrade your castle by collecting bricks. Deploy archers to defend your territory and become the last one standing in this fun, easy-to-control game.

Easy controlsFun gameplayCollect bricks
🎮 Games
(7.1K)
free with in-app purchases
10
ClassLink LaunchPad
ClassLink LaunchPad
ClassLink LaunchPad
Single sign-on for education
Free

Access all your school's learning and productivity applications with a single login. This app provides instant, personalized access to thousands of educational resources, saving you time and allowing more focus on learning. It integrates with cloud drives and network folders for seamless file access.

Single sign-on for all school resourcesAccess thousands of learning appsInstant access to cloud drives
📚 Education
(7.3K)
free
11
Authenticator app - 2FA, MFA
Authenticator app - 2FA, MFA
Authenticator app - 2FA, MFA
Two Factor Authentication, OTP
Free

This app provides secure two-factor authentication for over 1000 popular online accounts. It offers quick access via widgets and Apple Watch, and ensures your data is safe with no internet exchange. Easily set up accounts by scanning QR codes or entering secret keys.

Two-factor authentication (2FA)Multi-factor authentication (MFA)Supports 1000+ apps
🔧 Utilities
(5.7K)
free with in-app purchases
12
Keeper Password Manager
Keeper Password Manager
Keeper Password Manager
Passkey & Password Generator
Free

Securely store, generate, and autofill passwords, passkeys, and 2FA codes across all your devices. Protects sensitive data with zero-knowledge encryption and monitors the dark web for breaches.

Secure password generationPasskey and 2FA code storageCross-device syncing
📊 Productivity
(227K)
free with in-app purchases
13
OneLogin Protect
OneLogin Protect
OneLogin Protect
by OneLogin, LLC
Free

This app provides enterprise-ready multi-factor authentication for your online accounts. It offers secure two-factor authentication for OneLogin SSO and thousands of third-party services, enhancing your digital security with push notifications and time-based one-time passwords.

Push notification alerts for OneLogin accountsTouch ID/Face ID/PIN for push notification approvalWorks with third-party providers and OATH tokens
💼 Business
(561)
free
14
Authenticator App Ⓡ
Authenticator App Ⓡ
Authenticator App Ⓡ
Authentication App, 2FA Safely
Free

Enhance your digital security with an app that checks website safety, alerts you to email breaches, and provides two-factor authentication. Protect your online accounts and browsing experience with real-time analysis and an extra layer of security.

Website safety checksEmail breach alertsTwo-factor authentication
💼 Business
(73)
freemium
15
Authenticator ® App
Authenticator ® App
Authenticator ® App
Two Factor Authentication Aрр
Free

This app enhances online security by managing two-factor authentication codes for over 1,000 applications. It offers features like password leak detection, VPN protection, and secure password autofill, with cloud backups and biometric security options.

Two-factor authentication code generationPassword leak detectionVPN protection
📊 Productivity
(3K)
free with in-app purchases
16
Clever
Clever
Clever
Single sign-on for education
Free

Provides secure access to digital learning resources for students through a single sign-on portal. Enables easy access to classroom tools and applications on iOS devices, requiring school or district setup.

Single sign-on for digital learningSecure access to classroom resourcesStudent portal on iOS devices
📚 Education
(9.9K)
free
17
Authenticator App - 2FA, OTP
Authenticator App - 2FA, OTP
Authenticator App - 2FA, OTP
Authenticator App - 2FA, OTP
Free

This app provides a secure way to manage two-factor authentication (2FA) for your online accounts. It generates time-based one-time passwords (TOTP) directly on your device, offering enhanced security against interception and SIM swap attacks. Easily set up accounts, access codes offline, and manage your credentials with advanced protection options.

Secure 2FA and OTP generationOffline code accessEasy account setup via QR or manual entry
🔧 Utilities
(111)
free with in-app purchases
18
Authenticator App - Authkey
Authenticator App - Authkey
Authenticator App - Authkey
Two factor authentication, 2fa
Free

Enhance your online security with this app, offering a secure and reliable method to protect your accounts. It generates unique codes for two-factor authentication, ensuring your personal information stays safe.

Account protection with 2FAEasy setup and managementBackup and sync accounts
🔧 Utilities
(3.3K)
free with in-app purchases
19
ID.me Authenticator
ID.me Authenticator
ID.me Authenticator
by ID.me, Inc.
Free

This app provides a free multi-factor authentication solution for your account, adding an extra security layer to prevent unauthorized access. It generates secure verification tokens, including time-based codes and push notifications, to confirm your identity during login.

Multi-factor authentication (MFA)Time-based one-time passwords (TOTP)Push notification verification
📊 Productivity
(100K)
free
20
Authenticator
Authenticator
Authenticator
Simple 2-factor authentication
Free

This app provides a secure and straightforward way to protect your online accounts. It generates one-time passwords that, when combined with your regular password, significantly enhance your account security. The app operates offline, ensuring your sensitive data remains on your device.

Generates one-time passwordsQR code setupEncrypted data storage
🔧 Utilities
(407)
free