Comparison

mdMessage vs Tarsier

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

Head to head
About

mdMessage

Securely message healthcare professionals and colleagues with this HIPAA-compliant application. Share unlimited messages, photos, and audio notes across all your devices. Enjoy fast, secure communication with advanced privacy features.

Highlights
  • HIPAA compliant secure messaging
  • Unlimited messages, photos, and audio notes
  • Syncs across all devices (desktop, tablet, phone)
  • Message deletion from devices and browsers
  • Photo sharing without saving to camera roll
  • Large group chats and identifiable patient chats
Features
Read full description

Message securely with MD Message for Healthcare. MD Message™ seamlessly syncs across all of your devices and can be used on desktops, tablets and phone alike. You can send an unlimited amount of messages, photos, and audio notes. Built for the enterprise, MD Message™ truly is the #1 app for HIPAA compliant secure messaging for healthcare information. Message anyone you work with, message with any colleagues or peers from around the country. This is the first messaging app that is secure, HIPAA compliant, and open to the entire medical community. Invite your colleagues, peers, assistants, nurses, all securely, all for free. We pride ourselves on the focus of security and simplicity. Why Switch to MD Message™ FAST: MD Message™ is the fastest secure HIPAA compliant application on the market. It uses a distributed infrastructure with data centers positioned around the country to connect you to the fastest and closet server SECURE: We made it our mission to provide the best security and have provided our users secure features. Delete your message from your device or others. Share photos that do not store in your camera roll. Ability to wipe your entire message tread from any web browser. GROUP CHAT & SHARING: With MD Message, you can form large group chats with dozens of members. You can create individual Patient chats that are easily identifiable in your threads. You can add anyone to your contacts in MD Message from peers, colleagues, family and friends. 100% FREE & NO ADS. MD Message™ is free PRIVACY: We take your privacy seriously and NO THIRD PARTY will ever have access to your data. SUPPORT: For real-time support please go to New Chat - MD Message Support - and text us, ask a question or provide feedback via our feedback tool. PREMIUM: If you would like a premium installation that is private to your organization, please contact us at sales@mdtech.com or text us a new chat.

About

Tarsier

This secure messaging app offers a private and decentralized communication experience. It prioritizes user privacy by requiring only a nickname and employing end-to-end encryption. Enjoy unlimited group chats and open-source flexibility across multiple devices.

Highlights
  • End-to-end encryption
  • Decentralized architecture
  • Nickname registration
  • Unlimited group chat
  • Open source
  • Multi-platform support
Features
Read full description

Imagine a world where you can message anyone without being forced to install the same app, Imagine a world where you can host your own communication and still be part of a huge network. This will be brought to you by Tarsier Secure Chat, which is powered by DIM. DIM - an open source project that provides the protocol and system architecture. which is designed for the next generation Internet that is coming. DIM network could serve as a social network, in which users can send messages or digital assets freely. Besides that, DIM can serve the Internet of Things as well. Allowing software to communicate autonomously. Although other platforms are owned and operated by a single corporation, who has full control over everything, DIM network is decentralized, and there is no one server, company, or person running it. Anyone can join and run their own services on DIM network. But, how does this work? When someone joins DIM network with their servers, they are called Service Providers. Since DIM network is open, a Service Provider can have its own set of services, while complying with DIM Protocol. User identification is generated and verified using a cryptographically algorithm, and no longer authenticated by a single corporation. Because of this, Service Providers cannot monetize the user’s privacy or data, they must compete by providing better services, and a better ecosystem. This means that all the Service Providers share the same potential user base. And users could choose the Service Provider that fits their needs at anytime. Nowadays, the internet users place greater emphasis on protecting their privacy, many people are concerned that their private information may be illegally used. I hope this app can build a more safety social network to allow who don 't want to provide too much information to the man-in-the-middle, can still keep in touch with their friends freely. Hope this application can bring you more convenience. Enjoy it! # Tarsier - Secure Chat Your private chat space, secure, reliable, and under your control. ## App Introduction In an age of information overload, protecting your privacy is more important than ever. Tarsier is a privacy-focused social app that lets you share everything with your friends without worrying about information leaks. Its unique decentralized design puts your data in your own hands; we don't collect or store any of your personal information. All you need is a nickname to start a private chat. ## Key Features - Absolutely Secure - Advanced end-to-end encryption ensures every message is visible only to you and your friends. A decentralized architecture and zero-trust forwarding nodes further safeguard your data and prevent information leaks. - Ultimate Privacy - Register with just a nickname, no personal information required, leaving you in complete control of your identity. - Unlimited Group Chat - Create large groups with unlimited members and chat without interruption. - Free and Open - Completely open source, allowing for customization and the ability to build private nodes. Open APIs allow third-party developers to create practical tools like real-time translation, information aggregation, and AI assistants, continuously improving your communication experience. - Multi-Platform Support - Enjoy secure and seamless communication on all your devices, wherever you are. ## Why choose Tarsier? Because your privacy is paramount. We don't collect your personal information or store your chat history; we focus solely on providing you with a secure and reliable private chat space. With Tarsier, you can express yourself freely and communicate freely. Whether sharing private photos with family, discussing sensitive topics with friends, or discussing business secrets with colleagues, you can do so with peace of mind. **Download Tarsier now and experience unprecedented security and freedom!**

Screenshots

mdMessage4 screens
Tarsier4 screens

Verdict

The call

The clearest difference is update cadence: Tarsier at monthly against mdMessage's every 4 months. Tarsier also leads on ratings volume (6 vs 1). On price, rating, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for mdMessage against 5.0 for Tarsier. That said, the two scores are not equally well evidenced: Tarsier has 6 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

mdMessage ships an update every 4 months, Tarsier monthly. The most recent releases landed on September 25, 2026 and September 28, 2026 respectively.

Scorecard2 real differences · 8 level
mdMessage versus Tarsier: the parameters behind the verdict, then further details
ParametermdMessageTarsier
PriceFreeFree
Rating5.0 (1 ratings)5.0 (6 ratings)
Positive reviews—100.0% of reviews
Number of ratings16 — better
Update frequencyEvery 4 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size21 MB28 MB
Age rating12+17+
DeveloperMedical Design Technologies, LLC奇 莫

Customer experience

mdMessage

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Tarsier

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

mdMessage

No in-app purchases

None

Tarsier

No in-app purchases

Questions

Is mdMessage free?
mdMessage is free to download, with no in-app purchases.
Is Tarsier free?
Tarsier is free to download, with no in-app purchases.
Which has better reviews, mdMessage or Tarsier?
mdMessage and Tarsier are both rated 5.0 out of 5 on the App Store, from 1 and 6 ratings respectively.
Do mdMessage or Tarsier have ads?
Neither mdMessage nor Tarsier shows ads.
Which is updated more often, mdMessage or Tarsier?
mdMessage ships an update every 4 months, and Tarsier monthly. Most recently, mdMessage was updated on September 25, 2026 and Tarsier on September 28, 2026.

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