Comparison

Delta Chat vs Berty Messenger

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

Head to head
About

Delta Chat

This decentralized messenger offers private, secure, and reliable instant messaging. It allows for easy setup on multiple devices and supports multiple chat profiles without requiring a phone number. Enjoy end-to-end encryption and the flexibility to run it with your own email or server.

Highlights
  • Decentralized instant messaging
  • Private onboarding without phone number
  • End-to-end encryption
  • Multiple chat profiles
  • Works on multiple devices
  • Self-hosted option
Features
Read full description

Delta Chat is a reliable decentralized instant messenger that is easy and fun to use for friends, family, groups and organizations. Delta Chat is developed by a dedicated FOSS contributor community that jointly releases refinements and new features several times a year, across many stores and platforms world-wide. Features at a glance: • Private. Instant on-boarding without a phone number or other private data. • Friends & Family: Only chat with people you know. Unknown users cannot message or follow you without mutual consent. • Flexible. Supports multiple chat profiles and is easy to setup on multiple devices. • Reliable. Works under bad and adversarial network conditions. • Secure. Audited End-to-End encryption safe against network and server attacks. • Sovereign. Can be run with your own e-mail address or server. • FOSS. Fully Open Source/Free Software, built on Internet Standards.

About

Berty Messenger

This app offers secure, end-to-end encrypted messaging without central servers. It allows communication even without an internet connection, ensuring anonymity and protecting user metadata from surveillance.

Highlights
  • End-to-end encrypted messaging
  • 100% decentralized P2P network
  • Completely anonymous user profiles
  • Metadata protection
  • Offline communication via Bluetooth
  • Group chats and media sharing
  • Voice message sharing
Features
Read full description

Berty makes privacy the easy option. Berty is an encrypted and offline peer-to-peer messenger with NO central server. Connect with or without an internet connection, message for free, and avoid surveillance and censorship. DISCLAIMER: Berty is fresh off the development line and hasn’t been audited yet. Please keep this in mind when exchanging data. END-TO-END ENCRYPTED MESSAGING In some countries, even a lol or a like can get you sent to jail. Berty is end-to-end encrypted - not even our developers could access your data, let alone corporations or governments. 100% DECENTRALIZED Just like blockchain technologies, Berty doesn’t pass your data through central servers - the place where internet service providers, hackers, and governments can intercept your data. Instead, Berty’s network is distributed, based on P2P direct messaging. COMPLETELY ANONYMOUS Berty couldn’t care less about who you are. You don’t need to provide your real name, an email, or a date of birth. You don’t even need a SIM card! PROTECT YOUR METADATA You might not know what metadata is, but WhatsApp, Facebook Messenger, and WeChat all collect it. This data can reveal a lot about you - so you’ll be glad to hear Berty is a messaging app alternative that collects as little metadata as humanly possible. COMMUNICATE WITHOUT TRADITIONAL NETWORKS Berty is made to work in the most challenging network conditions in the solar system. If governments, hackers, or natural disasters shut down cellular or internet networks, users can still make vital instant communications over Berty’s proximity Bluetooth feature. JOIN GROUP CHATS Berty is a full-featured instant messaging app. Create groups, chat securely, and share media with friends, family, and colleagues. SHARE VOICE MESSAGES Instantly send encrypted voice memos and audio files on Berty’s decentralized network. FREE FOREVER Privacy is a right for everyone, so Berty doesn’t profit from keeping you safe online. Created by an NGO, Berty will always be free and relies on the generous community to fuel development. TOGGLE BETWEEN ACCOUNTS Create different accounts to split your messaging identities by work, school, family - however, you want to categorize your messages! The Berty messaging app, built on the Berty Protocol, is designed, developed, and deployed by the French non-profit NGO, Berty Technologies. But Berty isn’t just decentralized in terms of its architecture - it’s also owned by the community, not a corporation interested in profits. The progress of Berty relies on developers testing and feeding back on our open source code, generous funding from funds and individual donors, and online and offline advocacy in the community. Documentation on Berty: https://berty.tech/docs Source Code: https://github.com/berty Join Berty’s Discord: Follow Berty on Twitter: @berty

Screenshots

Delta Chat4 screens
Berty Messenger4 screens

Verdict

The call

The clearest difference is rating: Delta Chat at 4.5 against Berty Messenger's 3.0. Delta Chat also leads on review sentiment (61% vs 33%) and ratings volume (122 vs 22). Berty Messenger's advantage is iOS requirement (12.0 vs 15.6). On price, update cadence, 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

Delta Chat holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: Delta Chat has 122 ratings behind it against 22, so its average is the more settled of the two. Written reviews point the same way: 61% of Delta Chat's written reviews are positive against 33% of Berty Messenger's.

UpkeepUpdate frequency

Delta Chat ships an update every 3 weeks, Berty Messenger every 2 months. The most recent releases landed on September 24, 2026 and August 21, 2026 respectively.

Scorecard4 real differences · 6 level
Delta Chat versus Berty Messenger: the parameters behind the verdict, then further details
ParameterDelta ChatBerty Messenger
PriceFreeFree
Rating4.5 (122 ratings) — better3.0 (22 ratings)
Positive reviews61.2% of reviews — better33.3% of reviews
Number of ratings122 — better22
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size60 MB167 MB
Age rating4+4+
DevelopermerlinuxBerty Technologies

Customer experience

Delta Chat

All ratings122 ratings
Positive87.7%
Neutral3.3%
Negative9.0%
Written reviews129 reviews
Positive61.2%
Neutral8.5%
Negative30.2%

Berty Messenger

All ratings22 ratings
Positive40.9%
Neutral18.2%
Negative40.9%
Written reviews27 reviews
Positive33.3%
Neutral33.3%
Negative33.3%

In-app purchases

None

Delta Chat

No in-app purchases

None

Berty Messenger

No in-app purchases

Questions

Is Delta Chat free?
Delta Chat is free to download, with no in-app purchases.
Is Berty Messenger free?
Berty Messenger is free to download, with no in-app purchases.
Which has better reviews, Delta Chat or Berty Messenger?
Delta Chat is rated higher. Delta Chat averages 4.5 out of 5 from 122 ratings, while Berty Messenger averages 3.0 from 22 ratings.
Do Delta Chat or Berty Messenger have ads?
Neither Delta Chat nor Berty Messenger shows ads.
Which is updated more often, Delta Chat or Berty Messenger?
Delta Chat ships an update every 3 weeks, and Berty Messenger every 2 months. Most recently, Delta Chat was updated on September 24, 2026 and Berty Messenger on August 21, 2026.

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