Engagement you can defend
Each format needs a set action before it counts as engaged: 40% of a card scratched, a swipe to card 2, a turn past 90 degrees. Taps in the first 0.7 seconds are ignored.
Interactive formats by Radian
Scratch cards, wheels, swipes, quizzes and calculators that run inside the apps your audience already uses. We build them and run them next to your video and banner, and every format counts the same four events.

Why interactive
An impression says the ad was there. A scratch, a spin or an answer says someone chose to spend time with it. Tangent is built around that choice, and counts it.
Why “Tangent”. A tangent touches a circle at exactly one point. Every format here is built around one point too: the moment a thumb meets the ad.
Each format needs a set action before it counts as engaged: 40% of a card scratched, a swipe to card 2, a turn past 90 degrees. Taps in the first 0.7 seconds are ignored.
UPI cashback cards, festive wheels, product swipes. No learning curve, so the first second goes to the brand.
Tangent runs on the same IO as your Radian video and banner, with production included. Its impressions sit on the same Radian dashboard, and its spend is billed at your IO CPM.
Formats
12 formats in three families. Filter by what you need, then play any format on the demo phone. Demo brands are fictional.
Make it yours
Every format is a template. Type a brand name, pick a colour, and the ad rebuilds itself as you type. A new brand is a setting, not a rebuild.
A preview with a demo offer. Same template, same tracking, same checks; only the settings changed.
Reporting
Every ad on this page counts the same four events a campaign unit does: on screen, engaged, completed and click. Play any of them and watch your own visit add up below.
Counted in your browser only. Nothing is sent or stored.
Impressions on the Radian dashboard as the campaign runs, by app and city. Spend at your IO CPM, in your report.
Engaged and completed come from the unit’s event pixels, and clicks are one count we agree with you before launch. They join your report once confirmed for your campaign.
Brand-safety and invalid-traffic filters on every impression.
Your account team walks you through what worked, every week.
How it works
You bring the brand. We build each format in one to two working days per size from your final assets (finance reviews and 360 shoots take longer), you sign it off, and it goes live with your Radian plan.
Tell us the objective, audience and cities. We suggest the format that fits.
We build the ad from your logo, copy, images and offer, full screen and in-feed where the format allows.
You play it on your own phone and sign it off before anything goes live.
It runs inside the apps picked for your brief, alongside your video and banner, with a weekly read of what worked.
On your phone
Scan the code to open each ad full screen on your phone. Open each ad full screen on this phone. Play it the way your audience would, and see what it counts.
Play every format full screen
Questions
Short answers. Ask us for the full spec sheet when you brief.
Inside the mobile apps picked for your brief, from Radian’s in-app supply: entertainment, cricket, news, casual games and regional apps. Full screen between moments, or in-feed alongside content. The same ads also run on mobile web.
Your logo, colours, copy, product images and links. For scratch cards, wheels and catch games, the offer and its terms as well.
Often, yes. The 12 formats are ready to run. A new mechanic is scoped with your brief and built on the same engine, so it counts the same four events; its build and lead time are quoted with the brief.
On CPM, on the same IO as your Radian video and banner. Production is included with any Radian IO. Standalone buys have a minimum spend, and there is no long-term lock-in. Rates shared against a brief.
Each format has its own rule, such as 40% of a scratch card scratched or a swipe to card 2. Taps in the first 0.7 seconds are ignored. The spec sheet lists the rule for every format.
Impressions are live on the Radian dashboard, and spend is billed at the CPM on your IO. Engaged and completed come from the unit’s event pixels, and clicks are one count we agree with you before launch; they join your report once confirmed on your campaign’s live traffic. Your account team reads the results with you every week.
Yes. Your own pixels can fire on the same four events. Any two trackers differ a little; we bill on platform impressions and look into any gap above 10% with you.
Mostly. In-feed ads fit standard 300x250 slots, and full-screen ads run where apps show full-screen ads; we confirm full-screen availability for each brief. Where a slot can’t take interactive ads, the unit’s static version can run as a banner, reported separately.
They have to be. Every scratch card, wheel slot and catch-game reward is an offer your brand honours, with its terms on the unit and the full terms on your offer page. A static version shows a reward only when every viewer can claim it.
Yes. A pilot of up to four weeks runs Tangent next to its own static version at the same size, on the same apps, cities and dates, until the static line has the visits we agree before launch. Each ad carries its own UTM tag, so you compare visits in your own analytics, and cost per visit against each line’s spend. We call a result only when the gap is bigger than chance would give; otherwise the read says too close to call. Engaged, completed and click numbers come in once event reporting is confirmed on your campaign’s live traffic.
Next step
Four taps and it is written. Send it on WhatsApp, or copy it and send it to the contact below.
Point your phone camera at the code. The ad opens full screen.