Case studies
Subida AI case studies: six projects and the numbers they left behind
Six projects where we were responsible for customer acquisition: over 500K Mentorist users acquired through Facebook Ads, around 1,000 copies of “Cisza w świecie dziecka” sold in the first month, 350 pre-orders for Silne Dziecko, profitable scaling of Neurony Szaleją's digital product sales, and user acquisition with web2app funnels for the English Series and Lighthouse apps.
Every write-up follows the same structure: the context, what we actually did, and what the result was. No "increased engagement" and no charts without axes. Where we don't have a number we can show in the data, we describe the outcome instead of inventing a metric.
Written by Grzegorz Świerad, founder of Subida AI.
Case studies
Mentorist
B2C app · Facebook Ads · funnel optimisation
500K+users acquired through Facebook Ads- Context
- A flagship B2C startup we worked on for several years, in the highly competitive self-development app market — a market where you bid for the same user against brands with budgets many times larger.
- What we did
- Optimising every stage of the user journey — from the first ad creative, through the landing page, to the end of the sales funnel. Quizzes, reworked messaging, systematic analysis of competitors' strategies and more than 500 A/B experiments to separate what really lifts conversion from what merely looks good.
- Result
- Over 500K users acquired through Facebook Ads and funnel optimisation — mostly via ads on Facebook.
Neurony Szaleją
Digital products · growth partnership · custom sales pages
Digital product sales scaled while staying profitable — practically every new digital product was sold online at a profit.
- Context
- A digital brand whose audience wasn't naturally inclined to buy digital products at first. We came in as a growth partner, with the goal of building a repeatable sales system rather than just switching on ads.
- What we did
- We started with Facebook Ads and then took over the sales pages: we designed and built dedicated pages ourselves so we could test different sales approaches precisely and learn faster. Today the project runs on a mix of our creatives and the brand founder's own.
Silne Dziecko (Kamil Kajak)
Book · pre-sale · custom funnel and store
350pre-orders, or 500 copies sold- Context
- Kamil came to us looking for someone to set up online sales from scratch — he had no prior experience in this area. The project started with no sales history and no funnel in place.
- What we did
- We took responsibility for practically the whole funnel: the store page design, most of the creatives, and a series of experiments to find which sales approach delivered results fastest. Instead of copying off-the-shelf templates, we built a custom setup designed for rapid testing and quick iteration.
- Result
- 350 pre-orders, which came to 500 copies of the book sold — before the product had even reached customers.
Cisza w świecie dziecka
Digital product · ad-driven launch
~1,000copies sold in the first month- Context
- A digital product for parents, brought to market with a launch driven by Facebook ads.
- What we did
- Running the ad campaign around the launch: messaging built around a specific problem the audience has, and creatives tested while the campaign was live.
- Result
- Around 1,000 copies sold in the first month.
English Series App
Mobile app · user acquisition · web2app funnel
User acquisition from ads built on a web2app funnel and analytics, which we used to test new versions of the funnel and shift budget to where conversion was strongest.
- Context
- An iOS app for learning English from TV series and films, aimed at intermediate and advanced learners. Before you watch, it shows the harder vocabulary that will come up and lets you practise it.
- What we did
- Ad campaigns and creatives, messaging that explains how the app differs from ordinary flashcards, a web2app funnel from the ad, through a web page, to install and subscription, and analytics showing at which step users drop off.
Lighthouse
Subscription app · campaigns · web2app funnel · CRO
A web2app funnel and analytics that let decisions about new funnel and creative versions rest on data rather than gut feeling.
- Context
- A life-tracker app: weekly summaries of mood and areas of life, daily challenges, and charts showing what actually affects how you feel. A subscription model (Lighthouse PLUS) in a category where it's easy to over-promise.
- What we did
- Ad campaigns and creatives, a web2app funnel from the ad, through a web page, to install and subscription purchase, analytics measuring every step, and A/B tests of successive funnel versions.
Numbers that recur across our projects
The projects above are specific brands and specific launches. Below is what we see on average in campaigns run on our system — first signals usually appear within 7–14 days, and a measurable impact on campaign economics after about 60 days.
- average drop in CPA in the first 60 days
- -30%average drop in CPA in the first 60 days
- ROAS increase after rolling out AI creatives
- +150%ROAS increase after rolling out AI creatives
- more creatives tested on the same budget
- 10xmore creatives tested on the same budget
Common questions about these projects
Want to see a number like this for your brand?
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