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OSHI: Offline Messenger

OSHI: Offline Messenger

Private chat · no internet

2 ratings
6 reviews
🔧 Utilities
🌐 Social Networking
Free

Details

  • Released
  • Updated

Features

Background Location Access

Developer

HUGO ANATOLE PAUL MORICEAU
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OSHI: Offline Messenger video #1 for iPhone
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OSHI: Offline Messenger screenshot #6 for iPhone
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OSHI: Offline Messenger screenshot #8 for iPhone
OSHI: Offline Messenger screenshot #9 for iPhone
OSHI: Offline Messenger screenshot #10 for iPhone
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About

This app enables private chat and calls without an internet connection, using Bluetooth and Wi-Fi mesh technology. It allows users to communicate and share content even in areas with no signal, with end-to-end encryption for one-to-one conversations.

✓Works offline via Bluetooth/Wi-Fi mesh
✓End-to-end encrypted one-to-one chats and calls
✓No phone number or SIM required
✓On-device AI assistant
✓Voice and video calls
✓Group chats and media sharing
✓Self-destructing media
Show original description

What's New in OSHI

1.0.43

September 7, 2026

Fixed a freeze that could force-close the app while a message arrived, and two crashes at the start and end of calls. Long conversations now open much faster.

More

Events

Read more about Blackout Ready
Event EndedSpecial Event

Blackout Ready

Stay in touch when networks go down

Jul 15, 2026 — Jul 29, 2026

Read More

Read more about Signal-Free Festival
Event EndedSpecial Event

Signal-Free Festival

Stay with your crew when there's no signal

Jul 12, 2026 — Jul 26, 2026

Read More

Read more about Your Keys, Your Messages
Event EndedSpecial Event

Your Keys, Your Messages

A privacy reset: see how OSHI keeps every message end-to-end encrypted.

Jul 8, 2026 — Jul 22, 2026

Read More

See All

User reviews

Most RecentHighest RatedLowest Rated

Amazing

Enfin une vrai confidentialité
JeleldiJeleldi

Response from developer

Hey @Jeleldi ! "Enfin une vraie confidentialité", c'est exactement la phrase qu'on rêvait de lire. Vos messages restent chiffrés et rien qu'à vous, comme ça doit l'être. Merci d'être là !

Audio doesn’t work

Tried video call and the audio was very weak and eventually just stopped with weird noises (but still low volume).
OOC17OOC17

Response from developer

Hey @OOC17, sorry the video call audio let you down, weak sound cutting into weird noises is definitely not the experience we want. We'd really like to track this down with you: could you drop us a note at contact@oshi-messenger.com with your device model? We're on it.

Не устанавливайте.

Не работает, даже с VPN и без интернета😂 Тогда зачем русский язык добавлять?
Lok171067Lok171067

Response from developer

Привет, @Lok171067! Извините за впечатление. Небольшая деталь: OSHI работает офлайн через Bluetooth-меш, то есть рядом нужен ещё один пользователь с приложением, VPN тут ни при чём. Напишите нам на contact@oshi-messenger.com, поможем всё настроить и русский язык оставим при вас. 🙏

Genial

Nickel les messages
Marademara23Marademara23

Response from developer

Hey @Marademara23 ! "Nickel", on prend, c'est le meilleur des compliments. Merci pour les 5 étoiles, on garde le cap pour que ça le reste. 🙌

The best survivalist all

It only gets better
Anon_survivalistAnon_survivalist

Response from developer

Hey @Anon_survivalist! "It only gets better" is basically our roadmap in four words. Glad OSHI made it into your survival kit, right next to the water and the duct tape. Stay safe out there!

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FAQ

How does OSHI work without internet?

OSHI utilizes a Bluetooth and Wi-Fi mesh network to connect devices directly. Messages can hop from phone to phone, extending the range even without a cellular or Wi-Fi internet connection. This allows for communication with people nearby.

What is the range of the OSHI offline mesh?

The offline mesh has a short range, typically around 100 meters in open spaces and less through walls, provided both phones have OSHI open. The range can extend further if other nearby users also have OSHI open to relay messages.

Is my communication secure with OSHI?

One-to-one chats and calls are end-to-end encrypted using X3DH and Double Ratchet protocols, meaning only you and the recipient can read your messages. Your encryption keys remain on your device.

Can I make calls with OSHI?

Yes, OSHI supports both voice and video calls. These calls are also end-to-end encrypted for private one-to-one conversations.

Does OSHI require a phone number or email?

No, OSHI does not require a phone number, SIM card, or email address to use. It is designed for private communication without needing personal identification.

What kind of content can I share with OSHI?

You can share voice notes, photos, files, and live location through OSHI. It also features self-destructing 'view once' media for added privacy.

What is the on-device AI assistant in OSHI?

OSHI includes an AI assistant that runs entirely on your iPhone. Your prompts and its responses stay on your device, ensuring privacy, though its responses should be fact-checked.

What devices does OSHI support?

OSHI is available on Mac, Apple Watch, iPhone, and iPad, allowing for cross-platform communication and usage.