Apple Search Ads Glossary: The Terms You Actually Need to Know

If you've spent any time inside Apple Search Ads, you've probably hit a wall of acronyms — CPT, TTR, SKAdNetwork — and wondered if you need a decoder ring just to read your own dashboard.

This Apple Search Ads glossary is here to fix that, without turning it into homework. We picked the terms that actually come up when you're running Apple Search Ads campaigns for a mobile app or game, and explained each one the way we'd explain it to a new teammate: plainly, with the "why it matters" included. No 200-term wall of jargon to scroll through — just what you need to read your own campaigns and talk shop with confidence.

Apple Search Ads basics

Apple Search Ads (ASA) — Apple's own advertising platform for the App Store. It lets developers bid to have their app appear at the top of search results (and a few other spots) when someone searches a related term.

Search Tab — The placement at the very top of App Store search results, right above the organic listings. The most common, and most competitive, place advertisers bid.

Today Tab — A placement on the App Store's browse/discovery page rather than tied to a specific search. Good for building broader visibility, not just capturing demand that already exists.

Ad Group — A set of keywords, bids, and targeting that live under one campaign. Most advertisers split ad groups by theme (like "brand terms" vs. "competitor terms") to control bids separately.

Search Match — Apple's automatic keyword-matching feature. Instead of bidding on specific keywords, Apple decides which searches your ad shows for, based on your app's metadata. Great for finding new keyword ideas, less great if you want tight control over spend.

Keyword — The search term you're bidding on — "exact match" (only that phrase) or "broad match" (that phrase plus close variations).

Product Page — The App Store listing your ad sends people to: the screenshots, description, and reviews that make (or lose) the download.

Costs & bidding

CPT (Cost Per Tap) — What you actually pay each time someone taps your ad. Set by an auction, not a flat rate, so it moves with competition for that keyword.

CPA (Cost Per Acquisition) — What it costs, on average, to get one install or one of whatever action you're optimizing for. Usually the number that tells you if a campaign is actually working.

CPI (Cost Per Install) — A close cousin of CPA, focused specifically on installs. Some teams use CPI and CPA interchangeably; others reserve CPA for in-app events further down the funnel.

CPM (Cost Per Mille) — Cost per 1,000 impressions. Less common in Apple Search Ads than CPT, but useful for comparing efficiency across channels.

ROAS (Return on Ad Spend) — Revenue generated for every dollar spent on ads, usually shown as a ratio (a 3x ROAS means $3 back for every $1 spent). The metric that ultimately decides whether a campaign is worth scaling.

Bid Cap — The maximum you're willing to pay per tap for a given keyword. Too low and you lose the auction; too high and you overpay for clicks that don't convert.

Pay-for-Performance — A pricing model where the fee is tied to results — like a share of spend or revenue generated — instead of a flat monthly retainer regardless of how the campaign performs.

Performance & metrics

TTR (Tap-Through Rate) — The percentage of people who see your ad and tap it. A low TTR usually points to weak creative or a mismatch between your keyword and what people expect to find.

CVR (Conversion Rate) — The percentage of people who tap your ad and then actually install (or complete whatever action you're tracking). Where TTR measures interest, CVR measures follow-through.

DAU (Daily Active Users) — How many unique people open your app on a given day. A quick pulse check on engagement.

MAU (Monthly Active Users) — The same idea as DAU, over a 30-day window. Useful for spotting whether your user base is actually growing or just churning and refilling.

LTV (Lifetime Value) — The total revenue you can expect from a user over the time they stay active in your app. The number that should ultimately justify what you're willing to spend to acquire them.

Retention Rate — The percentage of users who come back to your app after a set period (day 1, day 7, day 30 are common checkpoints). A strong signal of whether the app itself delivers on what the ad promised.

Attribution — Figuring out which ad, keyword, or channel actually drove an install or an action, so you know where credit (and future budget) belongs.

Creative & store presence

ASO (App Store Optimization) — Improving your app's visibility and conversion rate within the App Store itself — title, keywords, screenshots, ratings — separate from (but closely tied to) paid campaigns.

Custom Product Pages — Variants of your App Store listing you can build for different audiences or campaigns, each with its own screenshots and messaging, then link specific ads to the version that fits best.

Creative Sets — Groups of custom screenshots and previews you can rotate into your Search Tab or Today Tab ads, so your creative matches the specific ad group or audience it's targeting.

App Store Creative Assets — The screenshots, preview videos, and icon that make up your listing. They do double duty — they're what convinces someone to download after they've already tapped your ad.

Automation & strategy

SKAdNetwork — Apple's privacy-focused framework for measuring ad performance without tracking individual users. It's why a lot of attribution today comes back as aggregated, delayed data rather than a real-time, user-level report.

UA Engine — Shorthand for the technology (often AI-driven) that manages bidding and optimization across user acquisition campaigns — adjusting bids, budgets, and targeting continuously rather than requiring someone to do it manually every day.

Full-Service Management — An arrangement where an agency or partner handles the entire campaign lifecycle — strategy, setup, daily optimization, reporting — rather than just handing you a tool to run yourself.

Discovery Campaigns — Apple Search Ads campaigns built around Search Match, designed to surface new, relevant keywords you might not have thought to bid on yourself.

Search Results Ads — The formal name for ads that appear in the Search Tab, as opposed to Today Tab placements. The format most people picture when they think "Apple Search Ads."

The takeaway

None of this is complicated once you've seen it in context — it just takes running a few campaigns before the acronyms stop feeling like a foreign language. If a term comes up that isn't here, or you want a second set of eyes on what your numbers are actually saying, that's the kind of thing we spend our days on. Keep an eye on The Signal for more of this as new Apple Ads features roll out.