Every install tells you how they want to lose it. The plan never says it back.
A new user taps “With Intermittent Fasting”, sets 07:00 and 18:00 on your meal-time wheels and picks Summer. The plan shows calories, water and steps. The PLUS screen gives a different date from the plan, and its X opens a discount wheel. Here is a first launch that answers all three, in your design, at your prices.
We installed Fastic, answered every question, then rebuilt the screens that should answer back.
Adapty powers subscriptions for 30,000+ apps, so we see what moves purchases across the market. Nearly 500 apps build their paywalls and onboarding in Adapty Flow Builder, and millions of dollars in subscription revenue pass through it every month. For Fastic we looked for the gap between what the app already knows about a new user and what it shows them.
1Your design, not ours
Your #1D1D1D, the #252525 answer cards with the green selected ring, the green Continue with its navy label, the orange progress dashes, the bear, your meal-time wheels and your PLUS cards. Only what the screens say changes.
2Your prices, as published
€2.34, €1.60 and €3.05 a week for 3, 12 and 1 month, with your own 23% and 48% off, exactly as your PLUS screen shows them. No invented trial, no new discount, no timer.
3You may have tested some of this
We cannot see your experiment history. Tell us what you already ran and we will go deeper on the rest.
Three promises in your ads. One first launch for all of them.
The Meta Ad Library shows Fastic ads running in German, English, French and Italian. They make three different promises: the AI food scanner, fasting instead of exercise, and real before-and-afters. Each install then meets the same 60+ screens and the same plan.
Adapty can pick the flow at first open from the campaign the install came from, through the attribution you already run. Each ad gets its own first screens and its own plan wording the same day, with no app release.
Ranked by what we would test first.
Tap any of them to open that screen on all three phones.
Five ideas, one plan that sounds like them.
Every answer used on the screen where they pay
Each change runs as its own A/B test against today’s flow, judged on revenue per install for each ad and each answer to “How do you want to reach your feel-good goal?”.
One date, and the plan you call Most popular
The PLUS headline takes the plan’s date and the occasion, and 12 Months starts selected. Built in Flow Builder, live without an app release.
One plan template, three ways
Fasting, tracking or both. The plan card, the loader lines, the PLUS rows and the review change with that one answer.
Judge each ad on revenue, not installs
Adapty reports purchases and revenue per install for each campaign and each answer, so Meta spend follows the promise that pays.
Impact ranges are Adapty’s expected effect from teardowns and A/B tests across subscription apps, not measured lift for Fastic. Screens, copy, the bear, the meal-time wheels, the loader reviews, the PLUS rows and the transformation photo come from the Fastic iOS app as recorded on 11 November 2026 (EU storefront: €2.34, €1.60 and €3.05 a week). The 4.7 rating from 131,129 ratings, the 1, 3 and 12-month Fastic PLUS plans and the three quoted reviews (IchEinfachUnverbesserlich8, Oberhausen123, BenDAce) come from the German App Store listing, read on 11 November 2026. The ads are from the Meta Ad Library: library IDs 1593778215810757 (DE, from 23 Aug 2026), 1148936827532062 (EN, from 5 Nov 2026) and 1423454026056521 (FR, from 28 Oct 2026). Derived numbers: the pace of 0.5 kg a week is your own plan’s 13.1 kg over 26 weeks; the 13-hour fast is 24 h minus the 07:00–18:00 eating window; each “weeks before” line is the plan’s goal date subtracted from the occasion date the user picked.
