Is replay a separate SDK?

No. Replay runs on the same @scalebun/react-native installation as analytics and monitoring, so you can jump from an event or crash to the session that produced it.

Features · Session Replay SDK

Session Replay SDK

The ScaleBun SDK records session replays on React Native and in the browser — form inputs masked and passwords blanked by default, with sampling you control and DOM reconstruction that survives the crash that killed the tab. For the strategic overview of how replay ties into analytics and monitoring, see Session Replay & Experience Analytics on the platform.

Read the session replay docs Session replay on the web Talk to the team

Capabilities

What session replay sdk gives you

Session replay with touch tracking, screen timeline, and privacy masking by default — on React Native and in the browser.

Masking you control, with the risky fields already covered
Typed form inputs are always masked and passwords always blanked, whatever else you configure. Beyond that you decide: mask all visible text, mask by CSS selector, or tag any element with data-scalebun-mask. Strict mode adds heuristic redaction of emails, card numbers and SSNs to whatever text is captured.
- Inputs always masked
- Selector masking
- Strict PII redaction
Record what is worth recording
Four modes — off, onError, sampled and always — with a per-session rate. The decision is deterministic from the session id using the same hash the backend uses, so the server re-derives it instead of trusting the client. A session that is not sampled installs nothing at all.
- onError mode
- Deterministic sampling
- No cost when unsampled
Survives the crash that killed the tab
With persistBuffer enabled the pre-roll is mirrored to IndexedDB, so a crash that takes the tab down still yields the moments leading up to it on the next load. A clean, error-free close discards it.
- IndexedDB pre-roll
- Crash-safe
One timeline, browser and app
DOM reconstruction in the browser — including cross-origin iframes — and touch tracking with a screen timeline on React Native. Both land on the same user timeline as the errors and events around them.
- DOM replay
- Cross-origin iframes
- Touch tracking

The SDK

Built as one lightweight SDK, not five disconnected tools.

One install brings the whole platform online, with the plumbing — queueing, batching, retries, and masking — handled for you.

One installation
OTA bundle updates
One identity layer
One event schema
Offline queueing
Batching & retrying
Privacy controls
Masking by default
iOS · Android · RN
Server-side APIs
Webhooks
Data export

App.tsx

# one install brings the whole platform
npm install @scalebun/react-native

import ScaleBun from '@scalebun/react-native';

ScaleBun.init({
  appId: "app_xxxxx",
  environment: "production",
  ota: {
    enabled: true,
    checkOnLaunch: true,
  },
  privacy: {
    maskText: true,
    blockSensitiveScreens: true
  }
});

FAQ