Communication
Two-way inbox
Every SMS you send and receive in one place, with delivery status on each message. Filter by direction and phone number; it refreshes every 15 seconds.
Everything you need to send and receive SMS from your own phone.
A two-way inbox, campaigns, webhooks, an API and a human-sounding AI auto-reply — with no per-message fee.
CommunicationAICampaignsInfrastructureDevelopersContactsTeamSecurity
AI
AI auto-reply (your own Gemini key)
Paste your free Gemini API key and incoming SMS get a reply drafted in your voice. Tone, do-not-say list, working hours, examples of your writing and a confidence threshold for auto-send.
Campaigns
Personalised campaigns
Up to 10,000 recipients per campaign, from pasted numbers or contact tags. {{first_name}}-style variables, scheduling, pause, resume and cancel. Opted-out contacts are skipped automatically.
Campaigns
Scheduled sends
Schedule a single message through the API with scheduled_for, or a whole campaign from the portal. Paused campaigns keep their place in the queue.
Infrastructure
Multiple phones and SIMs
Pair as many Android phones as you like; each sends from its own number. Pin a SIM slot per phone, or set a default SIM and per-prefix rules in the app.
Infrastructure
Safe sending pace
Each phone sends at most 6 SMS a minute and 25 per 30 minutes by default — under Android's own limit — so an unattended phone never stalls. Extra messages wait in the queue.
Developers
Signed webhooks with retries
HMAC-SHA256 signed deliveries for received, sent, delivered, failed and AI-draft events. Five automatic retries over six hours and a delivery log per endpoint.
Developers
REST API and test mode
A JSON REST API with API keys, idempotent sends and cursor pagination. New workspaces start in test mode, where delivery is simulated and nothing leaves your phone.
Contacts
Contacts and opt-outs
Contacts with tags and custom fields, CSV import, and automatic STOP / START handling. Texting STOP AI turns off AI replies for just that person.
Contacts
Templates
Save the messages you send most, with variables, and start a campaign or a new message from any of them.
Team
Team members
Invite teammates as owners or members. Everyone works in the same workspace with the same phones, contacts and inbox.
Security
Privacy by default
Message text is removed from our database 30 minutes after it settles and the record after 24 hours. API keys are stored as hashes and AI keys encrypted.
Coming soon
Not available yet — follow progress on the roadmap.
- Fallback to a paid SMS provider when a phone is offline
- End-to-end encrypted message bodies
- One-click Zapier, Make and n8n apps
- Single sign-on (SAML / OIDC)
- White-label portal
See it in action
Free during early access. Bring your own Android phone and — if you want — your own Gemini key.
Get started