Comparison

Berty Messenger vs OfflineHarmony Bluetooth Chat

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

Head to head
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

About

OfflineHarmony Bluetooth Chat

Connect with people nearby using Bluetooth, no internet required. Share text messages, voice notes, and even engage in video calls directly between devices. Ideal for situations with limited or no internet access.

Highlights
  • Offline messaging
  • Bluetooth video chat
  • Voice messages
  • Nearby group chat
  • Peer-to-peer privacy
  • Fast setup
  • Battery efficient
Features
Read full description

Chat, talk, and video call with people nearby — no internet, no router, no accounts. OfflineHarmony lets you message, send voice notes, and video chat with people around you using direct device‑to‑device connections over Bluetooth and peer‑to‑peer Wi‑Fi. No cellular data, no internet, and no Wi‑Fi network required. On a plane, at a school or workplace with blocked internet, traveling abroad, at a crowded event, or in an emergency — OfflineHarmony keeps you connected. KEY FEATURES Offline Messaging — Send and receive texts with no internet or cellular data. Live Video Chat — Real‑time video with nearby people over a direct connection. Voice Messages — Record and send voice notes, with adjustable playback speed. Nearby Group Chat — Connect with several people at once. Scan to Join — The host shows a QR code; others scan to hop in instantly. Private by Design — Messages go straight between devices. No servers store your chats, and no account or sign‑up is required. Encrypted Connections — Data is encrypted directly between devices. Safety Tools — Block or report anyone, right from the chat. Fast Setup — Open the app, find people nearby, and start talking in seconds. OFFLINEHARMONY PLUS — an optional one‑time purchase, no subscription ever. Removes ads and unlocks 5 color themes, 6 custom app icons, faster voice playback, and instant QR joining. Everything you need to chat stays free. PERFECT FOR Flights and travel • Schools and campuses with blocked internet • Festivals, concerts, and conventions • Camping and the outdoors • Emergencies • Cruises and ships • Stadiums and crowded events WHY OFFLINEHARMONY Most chat apps stop working the moment you lose internet. OfflineHarmony doesn't. Text, voice, video, and group chat — all completely offline, all directly between nearby devices. Available in English, Spanish, French, German, Russian, Ukrainian, Korean, Simplified Chinese, and Cantonese. Download OfflineHarmony and stay connected anywhere.

Screenshots

Berty Messenger4 screens
OfflineHarmony Bluetooth Chat4 screens

Verdict

The call

The clearest difference is rating: OfflineHarmony Bluetooth Chat at 5.0 against Berty Messenger's 3.1. OfflineHarmony Bluetooth Chat also leads on update cadence (weekly vs every 2 months). Berty Messenger's advantage is in-app purchases (none vs 1) and ratings volume (23 vs 3). On price, ads and monetization model 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. OfflineHarmony Bluetooth Chat sells 1 one-off in-app purchase. Berty Messenger asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OfflineHarmony Bluetooth Chat holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: Berty Messenger has 23 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Berty Messenger ships an update every 2 months, OfflineHarmony Bluetooth Chat weekly. The most recent releases landed on October 24, 2026 and September 22, 2026 respectively.

Scorecard6 real differences · 4 level
Berty Messenger versus OfflineHarmony Bluetooth Chat: the parameters behind the verdict, then further details
ParameterBerty MessengerOfflineHarmony Bluetooth Chat
PriceFreeFree
Rating3.1 (23 ratings)5.0 (3 ratings) — better
Positive reviews30.0% of reviews—
Number of ratings23 — better3
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better16.0
Further details — not scored
Size167 MB23 MB
Age rating4+4+
DeveloperBerty TechnologiesLimeLime Labs LLC

Customer experience

Berty Messenger

All ratings23 ratings
Positive43.5%
Neutral17.4%
Negative39.1%
Written reviews30 reviews
Positive30.0%
Neutral33.3%
Negative36.7%

OfflineHarmony Bluetooth Chat

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Berty Messenger

No in-app purchases

1 purchases

OfflineHarmony Bluetooth Chat

One-time1
  • OfflineHarmony Plus$1.99

Questions

Is Berty Messenger free?
Berty Messenger is free to download, with no in-app purchases.
Is OfflineHarmony Bluetooth Chat free?
OfflineHarmony Bluetooth Chat is free to download, with in-app purchases available.
Which has better reviews, Berty Messenger or OfflineHarmony Bluetooth Chat?
OfflineHarmony Bluetooth Chat is rated higher. Berty Messenger averages 3.1 out of 5 from 23 ratings, while OfflineHarmony Bluetooth Chat averages 5.0 from 3 ratings.
Do Berty Messenger or OfflineHarmony Bluetooth Chat have ads?
Neither Berty Messenger nor OfflineHarmony Bluetooth Chat shows ads.
Which is updated more often, Berty Messenger or OfflineHarmony Bluetooth Chat?
Berty Messenger ships an update every 2 months, and OfflineHarmony Bluetooth Chat weekly. Most recently, Berty Messenger was updated on October 24, 2026 and OfflineHarmony Bluetooth Chat on September 22, 2026.

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