Glossary — Voidhash Docs

Short definitions of the terms Studio and this help center use. Developers have their own, more technical glossary (developer docs).

A–E

A/B test

Shows different paywalls to different people at random and measures which converts better. See A/B tests.

Ad click ID

A code an ad network adds to a link when someone clicks an ad, such as Meta's fbclid or Google's gclid. It tells Voidhash which ad a visit came from. Nobody has to add it by hand.

Build

A frozen copy of a paywall's design, ready for apps. Deploying a build makes it live. See Build and deploy.

Component

A ready-made building block for paywalls, such as a plan picker or a countdown, written by developers. See Paywall components.

An ad shown to the same people so often that fewer of them click it. Studio flags it when an ad's frequency (how many times each person saw it) is high and its click-through rate has dropped over recent days.

Distinct ID

The ID a person's app or website uses for them: the user ID once they sign in, or a random ID before that. A person can have several.

Environment

Which data you look at: Production (real purchases), Sandbox (store test purchases) or Test (simulated purchases). See Switch environments.

Event

Something a person did that the app recorded, such as opening a screen, or that Voidhash recorded, such as a purchase.

F–O

Feature flag

A switch that turns a feature on for some people without an app release. See Feature flags.

Hook rate and hold rate

How well a video ad keeps attention. Hook rate is the share of impressions watched for at least 3 seconds. Hold rate is the share of those 3-second views that went on to 15 seconds or the end (Meta's ThruPlays).

Learning phase

The first days of a new or changed ad set, while Meta works out whom to show it to; results swing more meanwhile. An ad set shows Learning limited when it gets too few results to finish learning: Meta wants about 50 in 7 days. Studio shows the progress, such as Learning 31/50.

Location

A named place in your app that can show a paywall, such as onboarding. See Paywall locations.

MCP server

The way AI assistants, such as Claude or Cursor, connect to Voidhash to read your data and act for you. See Your account.

P–R

.p8 key

The private key file Apple gives you when you create a push notification key in your Apple developer account; its name ends in .p8. Apple lets you download it only once. See Push notifications.

Payment source

Your own billing system, such as a website checkout, that reports its sales to Voidhash next to the App Store, Google Play and Stripe. Set up by developers.

Perk

Something your app unlocks for a person, such as premium. Developers call it an entitlement. A person has a perk only through a purchase. See Set up products and perks.

Placement

Showing a particular paywall at a location.

Pro rata

In proportion to what you use. Usage past an allowance is charged for the exact amount over it, not in whole blocks. See Billing.

Product

What people buy, such as a monthly plan. It's linked to the matching store item and unlocks perks.

Project

One app or product in Studio, with its own data, paywalls and settings. A team can have several.

ROAS

Return on ad spend: revenue ÷ what the ads cost. 150% means every dollar spent brought back $1.50. Meta reports its own ROAS; Voidhash's True ROAS counts each person's revenue once. See Ads reports.

S–Z

SDK

The code library developers add to your app or website so it can talk to Voidhash.

Slug

A short, fixed name made of lowercase letters, numbers, hyphens and sometimes underscores, such as new-checkout. Apps use slugs to refer to things, so most can't change once created.

Team

Your company's account in Voidhash. It holds your projects and members. The developer docs call it an organization, and so do a few Studio screens, such as Components, the invitation dialog and the Single sign-on and Directory sync settings. Both words mean the same thing.

Touch

A moment Voidhash learns where a person came from, such as an ad click. See Ad measurement.

Tracking domain

A web address on your own website, such as t.example.com, that your website sends its analytics through, so fewer visits are lost to ad blockers. See Manage projects and teams.

UTM parameters

Labels added to the end of a link that name where a visit came from, such as ?utm_source=newsletter&utm_campaign=spring. Ad platforms and email tools can add them for you.

Voidhash Cloud

Voidhash hosted by us. Some features, such as billing and the Query page, exist only there. A self-hosted Studio runs on your own servers.

Webhook

A message Voidhash sends to your own server when something happens, such as a purchase. Set up by developers.

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