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02 — Collect

Anywhere your respondents are — even offline

Web, PWA, native iOS/Android, QR, SMS, WhatsApp, email, AI phone calls, kiosks, enumerator mode. Data syncs the moment a connection returns.

See all channels

Offline-first PWA

Respondents load once; the app keeps working through tunnels, camps, and blackouts. Delta sync with CRDT merges reconciles on reconnect.
  • Service Worker + IndexedDB persistence
  • Signed .survona package export (USB/LAN)
  • Encrypted local store (AES-256)
  • Automatic background sync

Native iOS + Android

React Native + Expo apps for enumerators, kiosks, and field teams. Camera, GPS, biometrics, Bluetooth peripherals.
  • MDM-ready enumerator mode
  • Kiosk mode with auto-reset
  • Face/finger biometric unlock
  • Bluetooth scale / sensor support

AI phone + voice

GPT-5 Realtime Voice + Whisper-3 call respondents in 40+ languages. Full transcript + sentiment attached to each response.
  • Inbound + outbound calling
  • Interruption + back-channel handling
  • Per-question voice tone control
  • PCI/PII redaction on transcripts

WhatsApp, SMS, email, QR

Reach respondents on the channel they already use. Each channel maps to the same questionnaire with channel-aware rendering.
  • WhatsApp Business API + templates
  • SMS via Twilio / MSG91 / regional SMPP
  • One-click share + QR kiosk mode
  • Email with magic-link resumption