Glossary

These are the terms Voidhash uses in Studio, the SDKs and these docs. Each links to the page that explains it.

A–C

A/B test: An experiment that splits the people reaching a paywall location between two or more paywalls and compares their results. See Feature flags and A/B tests.

API key: A credential that identifies your project to Voidhash, either publishable or secret. See API keys.

Attributes: Properties you store on a person, such as a plan name or a survey answer. See People and identity.

Automation: A no-code flow in Studio that reacts to what people do, for example by sending a push notification. See Automations.

Billing retry: The period after a subscription renewal fails, while the store keeps trying to charge the person. See Subscription lifecycle.

Bot: An AI assistant inside Studio that answers from your project's data and acts through tools. See Bots.

Build: A compiled version of a paywall, made from its design in Studio. A build reaches your app only once you deploy it. See Build and deploy.

Churn: Paid subscriptions that end. The churn rate is the share of paid subscriptions active at the start of a period that ended during it. See Metric definitions.

CLI: The voidhash command-line tool for managing projects, paywalls, keys and data from a terminal or script. See CLI.

Custom component: A paywall component you write in code and publish to a registry for your project or team. See Custom components.

D–F

Deploy: Making a paywall build the live one, so apps receive it. You can roll back to an earlier build. See Build and deploy.

Development mode: An SDK option that lets debug builds buy from a simulated store with the test publishable key. See Development mode.

Distinct ID: The ID Voidhash knows a person by. It is anonymous until your app calls identify with your own user ID. See People and identity.

Entitlement: A person's current access to a perk, and the subscription or purchase that gave it. See Products and perks.

Environment: Where a purchase or event belongs: production, sandbox (store sandbox) or test (simulated purchases and test modes). See Environments.

Event: Anything recorded for analytics, such as a screen view or a purchase. Built-in event names start with $. See Events.

Feature flag: A switch or variant your app reads at runtime to turn features on for some people. See Feature flags and A/B tests.

Flow: The SDKs' term for anything designed in Studio that they present: a paywall or an onboarding flow. See Paywalls in your app.

Flow result: What presentFlow returns when a flow ends: purchased, restored, finished (with the name of its finish action), closed or failed. See Paywalls in your app.

G–O

Grace period: Time after a failed renewal during which the person keeps access while the store retries the charge. See Subscription lifecycle.

Location: Short for paywall location: a stable slug in your app, such as onboarding, where a paywall appears. See Paywalls in your app.

MCP server: Voidhash's Model Context Protocol endpoint, which lets AI agents work with your projects. See MCP server.

MRR: Monthly recurring revenue: what your active subscriptions bring in per month. See Metric definitions.

Notice: A message to your team members, in Studio's inbox and by email, such as a fired analytics alert. See Notices.

Observer mode: Running Voidhash alongside your existing purchase code: the SDK reports purchases without making them. See Observer mode.

Offer: A discounted way to buy a product, such as an App Store promotional offer or a Google Play developer offer. See Products and perks.

Onboarding flow: A multi-screen flow designed in Studio that continues after a purchase. See Onboarding flows.

Organization: The API's name for a team.

P–R

Paid access sharing: The project setting that decides who keeps access when someone restores a purchase another account made. See Project settings.

Payment provider: Anything that takes payments and reports them to Voidhash: the App Store, Google Play, Stripe or a payment source. Set them up under Settings → Payment providers. See Payment providers (Help center).

Payment source: A billing system other than the stores and Stripe that reports payments to Voidhash. A provider endpoint is the handler on your server that Voidhash calls for it. See Payment sources.

Paywall: A screen, or a series of screens, designed in Studio that sells your products. See Paywalls in your app.

Perk: A capability a product unlocks, such as premium, checked by its slug in your app and on your server. See Products and perks.

Person: An end user of your app or website, as Studio's People page lists them. See People and identity.

Placement: A paywall assigned to a location. Changing a location's placement changes what apps show there without a release. See Paywall locations.

Product: Something a person buys: a subscription, a one-time purchase or a consumable. See Products and perks.

Project: One app or product inside a team. It owns its keys, products, perks, paywalls, people and data. See Teams, projects and environments.

Publishable key: The key you ship in apps and websites (vh_pk_…, or vh_pk_test_… for test). It only reaches the SDK endpoints, for one person at a time. See API keys.

RTDN: Real-time developer notifications: the messages Google Play sends Voidhash when a purchase changes. See Connect Google Play (Help center).

S–Z

Scope: One permission a secret key holds, such as project:analytics:read. Studio groups scopes into None, Read and Write per resource. See Access levels.

Secret key: A key for your servers (vh_sk_…, or vh_sk_test_… for test), with the access you choose. Never ship it in an app. See API keys.

Server notification: A message the App Store sends Voidhash when a purchase changes, such as a renewal or refund. See Connect the App Store (Help center).

Simulated purchase: A free purchase made in development mode, recorded in the test environment. See Development mode.

Store product: The App Store, Google Play, Stripe or payment-source item that a Voidhash product is mapped to. See Products and perks.

Studio: The Voidhash web dashboard. See How Voidhash works.

Subscriber: A person with an active subscription.

Subscription status: Whether a subscription is active or canceled. The SDKs and Studio's People page show more detailed statuses derived from it. See Statuses.

Team: Your company's account in Voidhash. It holds projects and members. See Teams, projects and environments and Members and roles.

VoidQL: Voidhash's read-only query language for project analytics, run from the API, an AI agent or Studio's Query page. See Query analytics with VoidQL.

Webhook: An HTTP request Voidhash sends to your server when something changes, such as a renewal. See Webhook delivery.

Next steps

• See how Voidhash works
• Follow the quickstart