All mentors

Samet Durgun

Call me Growth Therapist: growth and marketing consultant, co-founder of Subtext (subtext.it)

Berlin, Germany (+01:00 UTC) English, German, Turkishfrom Berlin, Germany
Usually responds in 9 hours
Free
Price per hour
30 min
Time Blocks Available
4.98
66 reviews / 86 sessions
Tue
13
Next availability

Bio

Most app growth problems are diagnosis problems. Teams keep buying more tactics when they can't see what's actually broken underneath. I've worked in mobile growth since 2013, first at Wooga, Zalando, and Coup, then independently. I run paid user acquisition for subscription apps and mobile games, and I spend most of my time finding the real reason the numbers won't move. When I open an account, I start with three things: where your budget lands across your ad sets, what your tracking reports back, and whether your creative gets tested or just churned out. Most of the damage hides in one of those. I've worked on apps that scaled to millions in revenue. I've also worked on plenty that shut down. I can usually tell early which way an app is heading, and what to change while there's still room to change it. Bring your ad account to the session. I'll go through it with you and tell you what I see. You'll leave with a few specific things to change this week, not a long audit you'll file and forget. More info: Growththerapist.com I also run my own consumer subscription app. Subtext is an AI writing assistant and tone checker, on iOS, Android and web, past 100,000 downloads. Every pricing test, paywall change and creative iteration I recommend, I have run on my own P&L first. Subtext: subtext.it

Expertise

  • Bootstrapping

    Helping startups scale efficiently by leveraging high-ROI, low-cost marketing strategies that drive user acquisition, retention, and monetization without huge budgets.

  • Building a team

    Hiring, structuring, and scaling growth and marketing teams from the ground up, fostering collaboration between UA, creatives, data, and product teams.

  • Conversion rate optimisation

    Optimizing paywalls, onboarding flows, pricing models, and user journeys to increase conversions, retention, and revenue while reducing churn for subscription and gaming apps.

  • Go to market strategy

    Developing scalable, data-driven GTM strategies that align user acquisition, positioning, and monetization to help apps enter new markets and grow profitably.

  • Growth marketing

    I've worked with apps that have scaled to 1,000,000s DAU (daily active users) and 1,000,000s of MRR (monthly recurring revenue). I've also worked with many apps that shut down. I'd love to tell you what differentiates a huge success from others.

  • Influencer Marketing

    Leveraging UGC, creators, and influencers at any scale to drive authentic engagement, conversions, and brand trust through paid collabs and Spark Ads.

  • Marketing automation

    Implementing AI-powered and rule-based automation for paid UA for Meta, Apple Search Ads, TikTok, and lifecycle marketing to improve efficiency, personalization, and revenue.

  • Product launches

    Executing high-impact launch strategies for apps with paid, organic, and influencer marketing to ensure early traction, retention, and scalable market entry.

  • Product market fit

    Refining positioning, messaging, and audience targeting to validate demand, reduce churn, and scale products with sustainable, profitable growth for apps.

  • Technology and tools

    Selecting, implementing, and optimizing growth stacks, AI-driven tools, ad platforms, and analytics to enhance campaign performance and marketing efficiency.

Toolkit

  • RevenueCat logo

    RevenueCat

    Optimizing subscription monetization using RevenueCat for paywall testing, cohort analysis, LTV modeling, and seamless in-app purchase tracking.

  • TikTok Ads logo

    TikTok Ads

    Scaling app growth with UGC, Spark Ads, and creator partnerships to drive high-impact engagement, installs, and conversions while adapting to TikTok’s algorithm.

  • Google Ads logo

    Google Ads

    I've been running Google Ads since I started there as an intern. Since then, I managed campaigns for tens of different apps with up to 7-digit monthly spends. My specialty lies in App Campaigns.

  • Meta Ads logo

    Meta Ads

    I've been running mobile marketing campaigns since Facebook invented it. I've been running campaigns for apps from day 1 until they spend millions a month.

Industries

  • Mobile Apps

    I have 10 years of experience in non-gaming and gaming apps: Organic and paid growth, acquisition, retention, paywall, reporting, tracking, and creatives.

  • App Marketing

    I have 10 years of experience in non-gaming and gaming apps: Organic and paid growth, acquisition, retention, paywall, reporting, tracking, and creatives.

  • App Discovery

    Helping apps increase visibility and installs through paid UA, ASO, influencer marketing, and algorithm-driven distribution across app stores and social platforms.

  • Digital Marketing

    Building data-driven, ROI-focused marketing strategies across paid UA, organic growth, influencer marketing, and automation to scale apps and digital products.

  • Social Media Advertising

    Running high-ROI ad campaigns for apps across Meta, TikTok, Apple Search Ads, leveraging AI, UGC, and creative testing to drive scalable user growth.

  • Social Media Marketing

    Growing brands and apps through organic content, paid ads, influencer collaborations, and UGC, optimizing engagement and conversions across platforms.

Experience

  • Subtext AI

    Co-Founder
    •subtext.it

    Co-founder of Subtext (subtext.it), an AI writing assistant and tone checker for personal and work messages. iOS, Android and web, 17+ languages, 100,000+ downloads, 4.9 on the App Store. I run product and growth end to end: positioning, onboarding and paywall design, subscription monetization, ASO, paid UA on Meta, TikTok and Apple Search Ads, creator partnerships, retention and the SEO programme behind the site. Every pricing test and LTV model here runs on my own P&L before I recommend it to a client.

    Mobile apps

  • Business of Apps

    App Leader
    •businessofapps.com

    Contributing app growth and user acquisition insights to the Business of Apps community as a selected App Leader.

  • Growth Therapist

    Fractional Head of UA & CMO for apps and games
    •growththerapist.com

    Fractional Head of UA and CMO for subscription apps and mobile games. I read the account first and set the CPA ceiling from unit economics before spending. Paid UA (Meta, Google, TikTok, Apple Search Ads), signal engineering (SKAN 4, CAPI, pLTV, value optimization) and creative systems. Selected results: Mellon (Videa AI, Cleaner Pure) - built the paid marketing function from scratch, D0 ROAS 20% to 43% weekly record, spend scaled past $200K/month, seven-figure monthly portfolio revenue. Salto Games (Horse Racing Solitaire) - D0 ROAS doubled from 8-12% to 17-23%, blended CPI from £9.43 to £5.38 in one month, day-one payer conversion +50%. EatBetter - blended ROAS 70% to 230% in two months, $10K to $180K MRR. MetaBit Games - 100% ROAS by day 28 in the US.

  • EatBetter App

    Growth Consultant (Freelance)
    •eatbetter.app

    Blended ROAS from 70% to 230% in two months, growing revenue from $10K to $180K MRR.

    Mobile apps

  • Salto Games

    Fractional Head of UA
    •salto.games

    Fractional UA lead for Horse Racing Solitaire through soft launch and scale. D0 ROAS doubled from 8-12% to 17-23% with value optimization, blended CPI from £9.43 to £5.38 in one month, day-one payer conversion up 50%.

    Gaming

  • ShopBack

    Creative Strategist (Freelance)
    •corporate.shopback.com

    Established clear visibility on OM creative performance. Introduced video analysis and production tools for scalable creative work.

    E-Commerce

  • Deutsche Telekom

    Mobile Marketing Manager (Freelance)

    Worked with multiple Deutsche Telekom apps. Built influencer-to-paid workflows and an internal creative testing process, and trained the team to run user acquisition independently.

  • Revel Games

    User Acquisition Consultant (Freelance)
    •revel.gs

    Consulted on paid user acquisition strategy and campaign scaling for mobile games.

    Gaming

  • OneClimate

    User Acquisition Freelancer
    •oneclimate.com

    Ran paid user acquisition campaigns for the OneClimate app.

    sustainability

  • Customlytics GmbH

    Sr. Performance Marketing Manager

    Customlytics is a full-service app marketing agency and consultancy based in Berlin that offers consultation and support for mobile strategy, analytics, ASO integration, business intelligence, analytics, and media buying.

  • Bosch

    Sr. Performance Marketing Manager

    COUP Mobility is a company offering an eScooter sharing service that is headquartered in Berlin, Germany.

  • Zalando

    Sr. Performance Marketing Manager
    •zalando.com

    Zalando.com is a leading European online platform for fashion and lifestyle products, offering a wide assortment of products from more than 7,000 brands to customers in 25 countries. The company was founded in Berlin in 2008 and has since grown to become one of Europe's largest online fashion and lifestyle retailers.

    B2CE-Commerce

  • Wooga

    Mobile Marketing Manager
    •wooga.com

    Wooga is a leading mobile game developer, and during my time, the company launched more than 20 mobile games; few became global successes. My primary responsibilities in this 3-year experience were - Running growth experimentation with calculated risks - Operating campaigns for growth, retention, and awareness keeping in mind key factors such as the lifecycle of games, seasonality, costs, and competition. - Leading and inspiring advertising partners and explore new ones. - Participating in planning new app launches (ad networks & creative selection, budgets distribution) - Reporting to C-levels of 7-digit-$ marketing activity and performance (ROI, CPI and CPA, volumes, trends) Some of the apps I worked with: - Pearl’s Peril: Hidden Objects ($215K MRR) - Jelly Splash: Fun Puzzle Game ($70K MRR)

    Gaming

My best written content

Made within Glyfada