Headway is the biggest App Store advertiser in EU microlearning apps. It ran 2,145 ad records across 18 countries in the last year, nearly five times what a rival like Deepstash spent. But volume is not the interesting part. The interesting part is that Headway's ad rotation reads like a product changelog. For most of the winter its widest English creative sold two features by name, "Shorts" and "Roleplay," then on 22 June 2026 it switched that line off and went back to plain book summaries. You can read the pivot straight off the public data, without a single word from Headway.
Everything below comes from Apple's public Ad Repository, the transparency dataset the EU Digital Services Act requires. It shows every App Store ad an advertiser ran, where, in what language, and for how long. Data window ends 21 July 2026.
The wide English line was a feature ad, and it just changed
Headway's most-run English creative was "Shorts・Book Summaries・Roleplay," live 197 days across 14 EU countries from December 2025. Read what it is doing: it names three product surfaces, book summaries plus two newer ones, short-form video and AI roleplay. That is a company advertising what it just shipped, using ad copy as a launch channel for features.
Then it stopped. The "Shorts・Book Summaries・Roleplay" line was last recorded on 22 June 2026, and a new wide English line took its place: "Book Summaries・Learn Everyday," started 20 June 2026 across 13 countries and still running. Headway spent half a year leading with Shorts and Roleplay, then pulled the features out of its widest ad and went back to the core promise. Maybe the feature copy converted worse. Maybe the roadmap moved on. Either way, the switch is dated and public, and a competitor watching this board saw Headway's positioning change the week it happened.
Its single longest survivor is in German, and it sells something else
Headway's longest still-live creative is not an English book-summary line at all. It is "Hörbücher & Allgemeinbildung" (audiobooks and general knowledge), a German line running 309 days across Austria and Germany, still recorded on 20 July 2026. In German-speaking markets Headway never advertised Shorts or Roleplay. It led with audiobooks and the payoff, general knowledge, and that line has outlasted every English creative it runs.
So Headway is running two different stories in two markets. English-speaking storefronts get the feature-forward, fast-rotating copy. German storefronts get a stable audiobook line that has quietly become the app's longest-proven ad. That is a deliberate split, and it is visible only because the repository tags each creative's language and country.
France gets a third variant, "Listen, Read, Remember, Repeat," 136 days and still live, aimed only at the French storefront. Portugal ran "Aprenda algo novo todo dia" (learn something new every day) for 110 days before it stopped in December 2025. Headway is not translating one master ad. It is running a different lead per market and letting each prove out on its own clock.
Where the money goes
Every Headway record on this board ran in App Store search results, the slot after a typed query. No Today tab, no browse placement at scale. For a microlearning app that fits: people search "book summaries," "audiobooks," "microlearning," or a rival's name when they decide they want to read more without reading more. Headway buys that moment of intent, in the searcher's language, and tests hard on the English side while holding steady on the German one.
What a founder can take from this
Three things transfer to a smaller app.
Your competitor's ad rotation is a roadmap you can read for free. Headway told the market it shipped Shorts and Roleplay, then told the market it was de-emphasizing them, all through dated ad copy. Pull a rival's ads and sort by first-seen date, and you get their feature timeline and their positioning changes without any leaks.
Test features in copy, but keep a stable core line running underneath. Headway rotated its English feature ad fast, which is fine, but its longest-proven creative is the plainest one: audiobooks and general knowledge in German, left on for ten months. Novelty ads are for testing. The line that names your core promise is the one you leave running.
Localize the positioning, not the wording. Headway did not translate one ad into five languages. Germany got audiobooks, France got a memory hook, English markets got features. Decide what each market actually responds to, then write the lead for that market, and let the data tell you which one to keep.
See any advertiser's ads yourself
See how long your competitors' App Store ads have really run, free, no account, in about a minute. Type an app, get its live ads ranked by how long each has stayed up, with the first-seen date on every creative.
Method note: figures are computed from Apple's public Ad Repository (DSA Article 39), across 25 EU storefronts, data window ending 21 July 2026. Record counts are what the repository reports for the advertiser; per-country slices return the most recent records, so the analyzed sample can be smaller than the repository total. "Days running" is the span from a creative's first to last recorded impression, and "over 1 year" is Apple's own 365+ marker. "Still live" means the creative appears in the 20 July 2026 data, the last impression date in this window. Translations are literal glosses, not Headway's own wording. Longevity is a proxy for performance, not a measured conversion rate. We invented no numbers beyond what the repository reports.