The bottom line
Ads earn more and annoy less when they appear at natural pauses and users choose to watch them. That makes the user, the app maker and the advertiser all win.
Key takeaways
- Ads that users accept instead of dodge pay off for everyone. 0:53
- The user finds the app clean and is the one asking to see the ad.
- The advertiser gets real engagement, not a pop-up closed in a hurry.
- Video ads that offer a reward earn more than banners. 4:38
- Merge shows 173 coins won, then offers to double them for a video ad.
- Duolingo offers a video ad to refill health, which keeps the user learning.
- The best moment to offer an ad is right after the user finishes something. 5:17
- After a lesson, a level or a puzzle, the user feels good and is more willing to watch.
- Young suggests Duolingo move its health offer from before a lesson to after it.
- Interstitials work when they explain themselves and offer a way out. 2:43
- Duolingo's line this ad helps keep education free makes a free app's ads feel fair.
- A link to go ad free turns the same screen into a premium upsell, and Duolingo skips banners to stay clean.
- Wording and layout should be tested to see what gets the most engagement. 3:57
- Duolingo appears to test two interstitials, one with "go ad free" and one with only a close button.
- Young's untested hunches: say "double up your coins" and show a fuller progress bar.
It's very clean, it's not getting convoluted with banner ads and making your app ugly, so it's giving users a great user experience while still earning you more ad revenue.
Steve Young, App Masters
Chapter summaries
0:00 Duolingo as a model for clean ads
A clean app can carry ads without feeling cluttered, and the style fits almost any kind of app.
- The Duolingo approach works for games, productivity and language apps alike. 2:15
- Steve is learning Spanish on it, so he can watch Narcos without subtitles.
- He calls it a very popular app that fits ads into a very clean design.
- He admits his Spanish is still only about three basic phrases.
- He picked it because the idea carries over to any app type.
- The ad appears right after a lesson ends. 2:33
- It is a quick, short interstitial shown once he is done swiping.
- Nothing in the app has to be bought, so he is happy to look at it.
- His reaction: I'm getting a lot out of this app and I don't mind you showing me this.
- The premium link matters because Duolingo eventually wants users to pay.
3:52 Format variations and video ads
Small changes to the screen and the ad type give an app more ways to earn.
- The second interstitial swaps the upsell for a plain close option. 3:57
- It shows only the promotion and a "no thanks" button.
- Closing the first version means reaching for the top of the screen.
- Steve suggests a next variation that offers both "go ad free" and "no thanks".
- He says he doesn't know whether it works for them.
- Video ads beat banners on earnings. 4:38
- Duolingo offers one just before a lesson starts, to begin with more health.
- Banners are fine, but video ads earn a lot more.
- Each wrong answer costs health, and at zero the user can't keep learning.
- The offer protects the lesson if the user makes mistakes.
5:42 Offer the reward when the user has just finished
A rewarded video ad works best right after a win or a loss, when the user is ready to stop and happy to take the offer.
- Duolingo's health refill should come after the lesson, not before it. 5:46
- Before a lesson the user wants to start, so the offer gets little engagement.
- After a lesson the user wants a break anyway, so watching an ad is easy.
- Young would reword it to something like watch an ad to refill your health before your next lesson.
- He would still keep the banner before the lesson, since it is not getting much engagement there anyway.
- His view: after a lesson the user is way more willing to watch an ad.
- Merge makes its offer the moment a hard puzzle ends in a loss. 7:13
- The user has just gone through a grueling puzzle and can't continue, so more coins are welcome.
- The offer is one clear step: tap yes, watch a video ad, and the coins double.
- Young would play down the X so the yes button stands out.
- The same offer shows up in many games, and he argues every game should use it after each level or puzzle.
- Merge has stayed in the top charts for a while.
In the growth library
Steve P. Young, Host and founder, App Masters (app marketing agency and academy). Shows how to add ads to an app without making it ugly, using examples from Duolingo and Merge. The core idea is to offer ads at moments when users are happy to opt in, so users, you and advertisers all win.
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App Masters · The whole library, and ask it anything