OSHI: Offline Messenger

OSHI: Offline Messenger

Private chat · no internet

2 ratings
7 reviews
Free

Details

Released
November 4, 2025
Updated
September 7, 2026

Features

Background Location Access

OSHI: Offline Messenger video #1 for iPhone
OSHI: Offline Messenger screenshot #2 for iPhone
OSHI: Offline Messenger screenshot #3 for iPhone
OSHI: Offline Messenger screenshot #4 for iPhone
OSHI: Offline Messenger screenshot #5 for iPhone
OSHI: Offline Messenger screenshot #6 for iPhone
OSHI: Offline Messenger screenshot #7 for iPhone
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

Blackout Ready

Stay in touch when networks go down

Jul 15, 2026 — Jul 29, 2026

Read more about Signal-Free Festival

Signal-Free Festival

Stay with your crew when there's no signal

Jul 12, 2026 — Jul 26, 2026

Read more about Your Keys, Your Messages

Your Keys, Your Messages

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

Jul 8, 2026 — Jul 22, 2026

User reviews

Belle application mais pas mal de bugs

Belle application complète mais pas mal de bugs concernant l’application comme le manque de fluidité à travers l’interface et les notifications excessives alors que je n’ai rien reçu. Hâte à la prochaine mise à jour !

Response from developer

Merci 💪💪 et merci surtout pour les deux détails précis, ce sont eux qui ont permis de trouver la cause. Les notifications alors que rien n’est arrivé : c’était un vrai bug, pas une impression. Quand un message chiffré n’arrivait pas à s’ouvrir du premier coup, la notification partait quand même et rien ne la retirait ensuite. Vous étiez donc prévenu d’un message qui ne s’affichait jamais. Le manque de fluidité venait du même endroit : tant que ce message restait bloqué, l’app réessayait de l’ouvrir toutes les cinq secondes sur le fil qui dessine l’interface. D’où ces accrocs sans raison visible. Les deux sont corrigés : plus de notification s’il n’y a rien à afficher, et les relances sont espacées et sorties du chemin d’affichage. C’est dans la prochaine mise à jour. Merci d’avoir pris le temps d’être précis, c’est ce qui rend un retour exploitable.

Amazing

Enfin une vrai confidentialité

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).

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?

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

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. 🙌

Developer apps

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.