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Best Threema Onprem Apps

208+ iOS apps curated and reviewed

4.1 avg rating
19 free apps
Updated May 2026

Every iPhone needs a few good threema onprem apps. We benchmark 208+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Threema Onprem

Threema. The Secure Messenger#2

Threema. The Secure Messenger by Threema GmbH

Secure. Anonymous. Private.
Strong Contender
🌐 Social Networking
4.3😊(671 ratings)
$6.99
#1in Social Networking
Threema. The Secure Messenger screenshot 1
Threema. The Secure Messenger screenshot 2
Threema. The Secure Messenger screenshot 3
Threema. The Secure Messenger screenshot 4
Threema. The Secure Messenger screenshot 5
Threema. The Secure Messenger screenshot 6

A secure and private messenger app that prioritizes user privacy by encrypting all forms of communication, offering anonymity with a random ID, and ensuring data remains on user devices. With features like text/voice messaging, voice/video calls, and file sharing, Threema's open-source design and Swiss servers provide a trustworthy platform free from ads and trackers. Visit the website for more information and support.

What We Love

  • 🔒 Secure messaging
  • 👍 Easy to use
  • 🚀 Fast and reliable
  • 💡 Anonymous ID instead of phone number

Room to Improve

  • 🐛 Unreliable video/voice calls
  • 🐛 Inconsistent notification delivery
  • 🐛 Bugs and crashes after updates
Duo Mobile#3

Duo Mobile by Duo Security LLC

Security made simple
Worth Considering
💼 Business
4.9😐(2.2M ratings)
Free
#17in Business
Duo Mobile screenshot 1
Duo Mobile screenshot 2
Duo Mobile screenshot 3
Duo Mobile screenshot 4

"Duo Mobile simplifies security by generating passcodes for two-factor authentication and providing easy, one-tap login authentication through push notifications on iOS devices. It also manages two-factor authentication for various other services and applications. Activate and link the app to your Duo account to start using its features."

What We Love

  • 👍 Simple and easy to use
  • 🔒 Provides an extra layer of security
  • 🚀 Quick and convenient authentication
  • 🔒 Secure login experience

Room to Improve

  • 🐛 Unreliable notifications and push functionality
  • 🐛 Compatibility issues when changing devices
  • 🐛 Slow and frustrating authentication process

More Threema Onprem apps to explore

4
Signal - Private Messenger
Signal - Private Messenger
Signal - Private Messenger
Wir leben Datenschutz.
Free

A messaging app focused on privacy with end-to-end encryption for texts, voice and video calls. Features group chats for up to 1,000 people, disappearing Stories, and no data collection. Stay connected securely with Signal - Private Messenger.

🌐 Social Networking
(1M)
5
Keeper Password Manager
Keeper Password Manager
Keeper Password Manager
Passkey & Password Generator
Free

A convenient password manager with a built-in password generator for strong, unique passwords. Simplify your online security with this easy-to-use app!

📊 Productivity
(227K)
6
BonChat
BonChat
BonChat
Secure Messaging Redefined
Free

Experience secure and private communication with BonChat! Enjoy seamless messaging, file sharing, and collaboration protected by state-of-the-art end-to-end encryption. Get started now for a new level of privacy in your conversations.

🌐 Social Networking
(56K)
7
Bitwarden Password Manager
Bitwarden Password Manager
Bitwarden Password Manager
Secure your digital life
Free

Secure your digital life with an advanced password manager that generates strong passwords, stores them in an encrypted vault, and allows seamless access across all devices. Protect your sensitive information with features like secure sharing, team collaboration, advanced encryption, third-party audits, and global translations. Stay safe online and empower your teams with professional business tools provided by this trusted password manager.

📊 Productivity
(28K)
8
Phone Guardian Safe Mobile VPN
Phone Guardian Safe Mobile VPN
Phone Guardian Safe Mobile VPN
Secure WiFi & Online Privacy
Free

Protect your online privacy and security with Phone Guardian Safe Mobile VPN. Safely connect to public WiFi networks, browse the internet anonymously, and ensure your data is encrypted. Download now for peace of mind while browsing online.

🔧 Utilities
(42K)
9
Ivanti Mobile@Work™ Client
Ivanti Mobile@Work™ Client
Ivanti Mobile@Work™ Client
by MobileIron
Free

This application, designed for iOS devices, securely connects your device to your company network, allowing easy access to email and work resources. With features like visual privacy, fast access to corporate data, automated connections, and device management, it simplifies accessing corporate resources while maintaining security.

💼 Business
(502)
10
IBM MaaS360
IBM MaaS360
IBM MaaS360
by International Business Machines Corp.
Free

This application securely enables iOS devices for highly productive access to corporate resources, offering comprehensive device security, easy access to documents, videos, and analytics for actionable intelligence. Try it now for enhanced mobile device management.

💼 Business
(428)
11
1Password: Password Manager
1Password: Password Manager
1Password: Password Manager
Save & share passwords safely
Free

A secure password manager that stores and organizes passwords, credit card information, and more in one place, accessible across devices. Simplify your digital life with secure and convenient password management.

📊 Productivity
(427)
12
Tele Messenger Chat Secure
Tele Messenger Chat Secure
Tele Messenger Chat Secure
Private Messenger Every Day.
Free

This application is a secure messaging app that offers fast communication, privacy protection, and synchronization across all devices. Features include text chat, themed customization, joining channels/groups/bots, free audio/video calls, sharing various files, and ensuring conversation safety.

🔧 Utilities
(562)
13
Session - Private Messenger
Session - Private Messenger
Session - Private Messenger
Privacy you can trust
Free

Session is a private messenger that ensures anonymity by utilizing a decentralized server network, avoiding data breaches and metadata logging. With features like closed groups, secure attachments, and open-source code, Session prioritizes user privacy and security. Join Session to protect your online conversations today! Check out Session on GitHub for more information: https://github.com/loki-project/session-ios.

🌐 Social Networking
(3.4K)
14
Intelligent Hub
Intelligent Hub
Intelligent Hub
Omnissa Workspace ONE
Free

Intelligent Hub is a comprehensive app that combines onboarding, catalog access, and services like People and Notifications in a single user-friendly interface. It offers enhanced security measures while providing convenient access to essential features for employees. Explore the Intelligent Hub app now for a streamlined mobile experience.

💼 Business
(738)
15
Verizon Protect
Verizon Protect
Verizon Protect
Data & identity security
Free

Digital Secure is a comprehensive security and identity protection app offering tools like VPN, anti-malware, dark web monitoring, and access to Security Advisors. Secure your online activities with safe browsing, Wi-Fi scanning, VPN, identity protection, and expert advice. Protect your digital world by downloading Digital Secure now.

🔧 Utilities
(45K)
16
SafeNet MobilePASS+
SafeNet MobilePASS+
SafeNet MobilePASS+
Thales Group
Free

SafeNet MobilePASS provides seamless and secure authentication through push approval and one-time passcodes. Easily enroll with QR codes, use TouchID/FaceID, and integrate with various apps for enhanced security. Start protecting your accounts today.

💼 Business
(112K)
17
Google Device Policy
Google Device Policy
Google Device Policy
by Google LLC
Free

Enroll your device with this app if your company uses Google Workspace for mobile management. It enables IT Administrators to enforce security policies, protect enterprise data, configure WiFi networks, and work apps. For more information, visit https://support.google.com/a/users/answer/3521320.

💼 Business
(2.7K)
18
Password Manager - mSecure
Password Manager - mSecure
Password Manager - mSecure
Secure Storage Digital Wallet
Free

Securely store and manage sensitive information across devices with a comprehensive password manager. Features include encryption, password generation, seamless syncing, and secure sharing options for families and teams. Upgrade to premium for extra security features. Get organized and stay protected with this all-in-one digital wallet.

📊 Productivity
(51K)
19
AVG Mobile Security
AVG Mobile Security
AVG Mobile Security
Protection & private data
Free

Discover a powerful mobile security application that safeguards your device from threats such as viruses, malware, and unsafe apps. Stay protected and browse securely with real-time scanning and privacy features. Download now for peace of mind on the go!

🔧 Utilities
(72K)
20
Telegram Messenger
Telegram Messenger
Telegram Messenger
Fast. Secure. Powerful.
Free

A fast, secure, and powerful instant messaging app with global connectivity and seamless cross-device syncing. Enjoy unlimited media and file sharing with top-tier encryption for maximum security.

🌐 Social Networking
(270K)

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