Plans for Everyone
Coming Soon
From Japan, unmatched in the world.
PRIVACY IS NOT A FEATURE. IT'S BY DESIGN.
Independent messenger taking on the three giants
A startup, from Japan
All Premium features are free through September 30, 2026, with unlimited plan switching during the trial.
Premium is free through September 30, 2026, with unlimited switching between Essential and Premium during the trial. On October 1, trial Premium accounts automatically return to Essential; active paid subscriptions remain Premium.
Download on the App Store
GET IT ON Google PlayFrequent Updates Ahead
Arc is in active development with frequent updates. Core messaging features are fully functional, while advanced features like Tracker are being rolled out progressively. Your feedback shapes what we build next.
Essential
Coming Soon
- ✓Signal Protocol E2EE (PQXDH)
- ✓Sealed Sender — Coming Soon
- ✓Key Sync — Coming Soon
- ✓Mesh Network (BLE)
- ✓Essential: default 1 day; manual dial 00:01–23:59 (hours and minutes only)
- ✓1 device
- ✓File transfer up to 3GB
- ✓Ad-supported
Premium
Paid subscription with an ad-free experience.
- ✓Everything in Essential
- ✓Ad-free experience.
- ✓Premium: default 7 days; manual dial 1 second–7 days
- ✓Up to 3 devices
- ✓Remote device logout
- ✓Server Cleanup: 2× daily (00:00 / 12:00 JST)
Intelligence
Invite-only beta + AI integration — Invite-only beta. Planned price at general release: US$250/year (2 months free).
- ✓Everything in Premium
- ✓Intelligence: default 7 days; manual dial 1 second–7 days
- ✓Up to 3 devices
- ✓Server Cleanup: Event-driven at expiry + every-5-minute safety net
- ✓Priority support
Feature Comparison
| Feature | Essential | Premium | Intelligence |
|---|---|---|---|
| E2EE (Signal Protocol) | Full | Full | Full |
| PQXDH (Post-Quantum) | Coming Soon | Coming Soon | Coming Soon |
| Sealed Sender | Coming Soon | Coming Soon | Coming Soon |
| Key Sync | Coming Soon | Coming Soon | Coming Soon |
| Mesh Network | Full | Full | Full |
| File Transfer | 3GB | 3GB | 3GB |
| Devices | 1 | 3 | 3 |
| IGF Range | Manual timer: hours and minutes only (default 1 day) | Manual timer: 1 second to 7 days (default 7 days) | Manual timer: 1 second to 7 days (default 7 days) |
| IGF Toggle | Always ON | ON/OFF | ON/OFF |
| Server Cleanup | Every 48 hours (00:00 JST) | 2× daily (00:00 / 12:00 JST) | Event-driven at expiry + every-5-minute safety net |
| Remote Logout | — | Yes | Yes |
| Like Notifications | Not available | Bulk ON/OFF | Per-user / Per-group |
| Hide Online Status | — | — | Yes |
| Badges | — | 5 badges | 10 badges |
| Price | Free | $8/mo | US$25/month (planned) |
Plan badges can be selected only while that exact plan is active. Permanently earned supporter and event badges remain available on every plan and can be hidden at any time.
Plans for Everyone
Security for Everyone — Coming Soon