Best Simplex Apps

76+ iOS apps curated and reviewed

4.1 avg rating
19 free apps
Updated May 2026

The best simplex apps on iPhone average 4.1★ across 76+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.

Top Picks for Simplex

SimpleX Chat: secure messenger#1

SimpleX Chat: secure messenger by SimpleX Chat Ltd

Privacy redefined: no user IDs
Editor's Choice
🌐 Social Networking
4.3😐(255 ratings)
Free
SimpleX Chat: secure messenger screenshot 1
SimpleX Chat: secure messenger screenshot 2
SimpleX Chat: secure messenger screenshot 3
SimpleX Chat: secure messenger screenshot 4
SimpleX Chat: secure messenger screenshot 5
SimpleX Chat: secure messenger screenshot 6

This secure messaging app offers unparalleled privacy by eliminating user identifiers. Enjoy end-to-end encrypted messages, calls, and files with features like disappearing messages and incognito mode. Connect via invitation links without needing phone numbers or emails.

What We Love

  • 🔒 End-to-end encryption and quantum-resistant security
  • 🔐 No phone number or personal data required
  • 👤 Anonymous profiles and multiple identities
  • 🚀 Fast message delivery when working properly

Room to Improve

  • 🐛 Frequent app crashes and instability
  • 📬 Delayed or missing notifications (20+ minutes common)
  • ⌨️ Keyboard issues on iOS (freezing, unresponsive)
Session - Private Messenger#2

Session - Private Messenger by Rangeproof PTY LTD

Privacy you can trust
Strong Contender
🌐 Social Networking
4.2😐(3.4K ratings)
Free
#97in Social Networking
Session - Private Messenger screenshot 1
Session - Private Messenger screenshot 2
Session - Private Messenger screenshot 3
Session - Private Messenger screenshot 4
Session - Private Messenger screenshot 5
Session - Private Messenger screenshot 6

This secure messenger prioritizes your privacy with a decentralized network and end-to-end encryption. It offers anonymous account creation, IP address protection, and private group chats without collecting any metadata. Share messages and files with confidence, knowing your communications are truly private.

What We Love

  • 🔒 Secure and private messaging
  • 👍 Clean and intuitive user interface
  • 🚀 Fast and responsive
  • 🔒 No phone number or personal data required

Room to Improve

  • 🐛 Unreliable notifications and message delivery
  • 🐛 Frequent crashes and bugs
  • 🐛 Slow media file transfers
Signal - Private Messenger#3

Signal - Private Messenger by Signal Messenger, LLC

Wir leben Datenschutz.
Worth Considering
🌐 Social Networking
4.7😊(1.1M ratings)
FreeIn-App Purchases
#10in Social Networking
Signal - Private Messenger screenshot 1
Signal - Private Messenger screenshot 2
Signal - Private Messenger screenshot 3
Signal - Private Messenger screenshot 4
Signal - Private Messenger screenshot 5
Signal - Private Messenger screenshot 6

This messaging app prioritizes your privacy with strong end-to-end encryption for all communications. It offers free text, voice, and video messaging, including group chats and disappearing stories, all without collecting your data.

What We Love

  • 🔒 Security and privacy
  • 👍 Ease of use
  • 🚀 Great call quality
  • 🚀 Smooth and pleasant user interface

Room to Improve

  • 🐛 Delayed message delivery
  • 🐛 Inconsistent image/video quality
  • 🐛 Buggy call functionality

More Simplex apps to explore

4
Changelly Exchange・Buy Crypto
Changelly Exchange・Buy Crypto
Changelly Exchange・Buy Crypto
Bitcoin BTC・USDT・Litecoin・ETH
Free

This platform allows users to exchange, buy, and sell over 1,000 cryptocurrencies with competitive rates and transparent fees. It supports various payment methods, including credit cards and bank transfers, and offers 24/7 support. Stay updated with the latest crypto news and market data.

Exchange 1,000+ cryptocurrenciesBuy crypto with credit card/bank transferSell crypto via Visa/Mastercard/bank transfer
💰 Finance
(6.2K)
free with in-app purchases
5
Simplex ELD 2GO
Simplex ELD 2GO
Simplex ELD 2GO
by The Simplex Group Inc
Free

This app automatically records driving time, engine data, and vehicle location by connecting to a commercial vehicle's engine. It helps fleets meet and exceed regulatory standards for hours of service, offering customized solutions for maximizing legal driving time.

Automatic driving time recordingEngine data captureReal-time vehicle location
💼 Business
(12)
free
6
Simplex Health
Simplex Health
Simplex Health
by Simplex Health Corp
Free

This app partners with your doctor to offer insurance-funded nutrition therapy for chronic disease prevention and reversal. It provides a secure platform to connect with your care team, access personalized coaching, and track key health metrics. The goal is to empower users with evidence-based strategies for sustainable lifestyle changes.

Insurance-funded nutrition therapyConnect with care team via HIPAA-secure platformPersonalized remote coaching
💪 Health & Fitness
(4)
free
7
Telegram Messenger
Telegram Messenger
Telegram Messenger
Fast. Secure. Powerful.
Free

A fast, secure, and powerful instant messaging app synced across all devices. It offers unlimited media and file sharing, robust encryption, and extensive group chat capabilities. Enjoy a simple, private, and customizable communication experience.

Cross-device synchronizationUnlimited file and media sharingEnd-to-end encrypted secret chats
🌐 Social Networking
(272K)
free with in-app purchases
8
Simplex
Simplex
Simplex
by Aptare Tecnologia
Free

Manage your finances with a digital wallet, integrated billing, and credit card payment options. Access a discount network and top up your mobile phone credit.

Digital walletDiscount network accessIntegrated billing control
💼 Business
(5)
free
9
Simplex Insurance Online
Simplex Insurance Online
Simplex Insurance Online
by The Simplex Group Inc
Free
💼 Business
(0)
10
Symlex VPN: Safe & Fastest VPN
Symlex VPN: Safe & Fastest VPN
Symlex VPN: Safe & Fastest VPN
Fast Super VPN & Hotspot Proxy
Free

This app provides a secure and fast internet connection, protecting your data from threats and surveillance. Enjoy unlimited bandwidth and access to global servers with military-grade encryption and a strict no-logs policy. Features include split tunneling, a kill switch, and an ad blocker for a seamless browsing experience.

Military-grade AES-256-bit encryptionStrict no-logs policySplit tunneling
📊 Productivity
(1.3K)
free with in-app purchases
11
ChatSecure Messenger
ChatSecure Messenger
ChatSecure Messenger
Encrypted Messenger
Free

This free and open source messaging app provides secure, end-to-end encrypted conversations using OTR and OMEMO over the XMPP protocol. It offers interoperability with other XMPP clients and uses well-known cryptographic libraries for privacy.

OTR encryptionOMEMO encryptionXMPP protocol
🌐 Social Networking
(283)
free with in-app purchases
12
WhatsApp Messenger
WhatsApp Messenger
WhatsApp Messenger
Simple. Reliable. Private.
Free

Connect with friends and family globally through private messaging and high-quality calls. Share moments, documents, and stay in touch across devices, even on slow connections. Your conversations are secured with end-to-end encryption.

End-to-end encrypted messagingHigh-quality voice and video callsGroup chats and calls
🌐 Social Networking
(18M)
free with in-app purchases
13
LBank - Buy Bitcoin & Crypto
LBank - Buy Bitcoin & Crypto
LBank - Buy Bitcoin & Crypto
Buy Meme on LBank
Free

This platform offers a comprehensive trading experience for cryptocurrencies, specializing in discovering high-potential tokens and meme coins. It supports a vast array of trading pairs, fiat currencies, and provides robust security measures and global compliance.

Discover 100x Gems and meme coins1,000+ spot trading pairs600+ derivatives trading pairs
💰 Finance
(720)
free with in-app purchases
14
SimpleX Flash
SimpleX Flash
SimpleX Flash
Insights in hand
Free
💼 Business
(0)
15
SimpleX Go
SimpleX Go
SimpleX Go
by SIMPLEX TECHNOLOGY SOLUTIONS PTY LTD
Free
💼 Business
(0)
16
Simplex
Simplex
Simplex
by ACRI
Free
🔧 Utilities
(0)
17
SimpleX Maintec
SimpleX Maintec
SimpleX Maintec
by SIMPLEX TECHNOLOGY SOLUTIONS PTY LTD
Free
💼 Business
(0)
18
SimplexLP
SimplexLP
SimplexLP
Linear optimization made easy!
$3.99

This app simplifies linear optimization problems with an objective function and constraints. It offers a graphical representation for problems with two variables, making it an ideal learning tool for students and teachers of the Simplex algorithm.

Solves maximization and minimization problemsHandles unlimited variables and constraintsSupports ≤, ≥, and = inequalities
📚 Education
(1)
paid
19
Simplex Nodal
Simplex Nodal
Simplex Nodal
by Simplex Nodal Limited
Free

Explore electricity markets by building and solving your own models. This app visually demonstrates complex concepts like locational marginal pricing, line losses, and the simplex algorithm. Learn through interactive examples and detailed step-by-step operations.

Build and solve electricity market modelsVisualize simplex algorithm workingsExplore locational marginal pricing
📚 Education
(0)
free
20
Keet - Private Encrypted Chat
Keet - Private Encrypted Chat
Keet - Private Encrypted Chat
Secure Messenger, No Tracking
Free

Connect directly with others using a peer-to-peer messenger. Your messages, files, and calls are encrypted and shared only between devices, ensuring complete privacy and control without corporate servers or data mining.

Peer-to-peer direct messagingEnd-to-end encrypted callsDirect file sharing
🌐 Social Networking
(105)
free

Related searches