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Softlaunch is built around local evaluation. Your SDKs don’t call an API for every flag check — they hold a snapshot of your configuration and evaluate flags in-process. This keeps evaluations instant and your app fast.

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The flow

1

Configure

You define flags, environments, and targeting rules in the dashboard.
2

Compile

Softlaunch compiles each environment’s configuration into a compact snapshot whenever it changes.
3

Distribute

The snapshot is served from a global CDN, cached close to your users.
4

Evaluate

Your SDK loads the snapshot once and evaluates flags locally — no network round trip per flag.
5

Update

When configuration changes, connected SDKs receive the new snapshot in real time and re-evaluate.

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Why it’s built this way

Fast

Flags are evaluated in-process. A flag check is a local function call, not a network request.

Reliable

Configuration is served from a CDN and cached in the SDK, so evaluation keeps working even through network blips.

Real-time

Changes propagate to connected SDKs immediately, without polling.

Private

Configuration for public clients is obfuscated, so your targeting logic isn’t exposed in the browser.

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Data isolation

Each organization’s data lives in its own isolated, database-per-tenant store. Your flags, environments, and configuration are never colocated with another organization’s data.
Because evaluation happens locally against a cached snapshot, the user attributes you pass to an SDK stay in your application. Softlaunch evaluates flags without those attributes leaving your environment.