CTR (Click-Through Rate)

Click-through rate (CTR) is the percentage of ad impressions that resulted in a click. Formula: CTR = (clicks ÷ impressions) × 100. A 2% CTR means 2 out of every 100 impressions led to a click. CTR is the headline engagement metric for mobile ads — a creativeGlossaryAd CreativeThe visual and audio content of an ad — video, image, copy, sound. The single most important variable in modern mobile UA, lifting IPM and lowering effective CPI.-quality signal that ad networks consume directly into their bidding algorithms.

Typical CTR benchmarks by mobile ad formatGlossaryAd UnitA specific ad placement or format inside an app — banner, interstitial, rewarded video, native, app-open, or offerwall — the container an ad renders in and the unit... (2026 anchors, US iOS):

• BannerGlossaryBanner AdA small persistent ad shown at the top or bottom of the app screen — the lowest-attention and lowest-eCPM mobile ad format, but high in impression volume. ads: 0.5-2%. Lowest CTR — banners are persistent, low-attention.
• Native ads: 1-4%. Higher than banner due to native UI integration.
• InterstitialGlossaryInterstitial AdA full-screen ad format shown between app sessions, level transitions, or natural break points. Forced-view (unlike rewarded video), so timing and frequency are crit... static: 2-6%. Full-screen attention but no opt-in.
• Interstitial video: 3-8%. Higher engagement than static.
• Rewarded videoGlossaryRewarded VideoA video ad format that users opt-into voluntarily in exchange for an in-app reward (currency, lives, extra content). The highest-eCPM mobile ad format because the us...: 6-15% (or higher). Opt-in attention drives strong CTR.
• PlayableGlossaryPlayable AdAn interactive ad format that lets users play a 15-60 second mini-experience demonstrating the app — typically 2-5× higher IPM than video ads but more expensive to p... ads: 5-15%. Interactive pre-install engagement.

Geo and category vary the numbers — emerging market CTRs trend lower (less ad spendGlossaryAd SpendThe total dollar amount deployed into paid user acquisition over a defined period — the input variable that drives all UA volume., lower-quality inventory), and category-specific creative resonance varies widely.

Why CTR matters for both publisher and advertiser

• For advertisers: higher CTR creative wins more impressions at the same bid (ad networks bid more for high-CTR creatives because expected revenue per impressionGlossaryAd ImpressionA single instance of an ad being served to a user — the atomic unit of ad inventory. What counts as "served" vs "viewable" vs "verified" matters enormously for pricing. is higher). High CTR is one of the central UAGlossaryPaid UA (Paid User Acquisition)Mobile app user acquisition via paid advertising channels — Meta, TikTok, Google, AppLovin, ironSource, and other ad networks. optimization metrics — see [[ipmGlossaryInstalls Per Mille (IPM)The number of installs generated per 1,000 ad impressions — a creative-quality metric ad networks use to decide which ads to show more often.]] for the install-conversion-per-impression metric.
• For publishers: higher CTR ads pay more per impression (advertisers bid more for high-CTR placements). Publisher inventory with consistently high CTR clears higher eCPMs.

The two sides of the marketplace are coupled — CTR is one of the highest-leverage metrics in the entire mobile ad ecosystem.

Improving CTR — the creative levers

• Hook in first 3 seconds — for video, the first 3 seconds determine continuation, which determines CTR opportunity at the end.
• Clear value proposition — generic feature dumps perform worse than specific outcome promises.
• Visual contrast / motion — eye-catching creatives (within platform guidelines) lift CTR.
• Audience-creative match — high-CTR creative for audience A may be low-CTR for audience B. Test per audience.
• CTA clarity — "Install Free" vs "Learn More" vs "Get the App" — small text changes can move CTR 10-30%.
• Format match to platform — TikTok-native creative on TikTok, Meta-native on Meta. Cross-platform copy-paste underperforms.