GTM Sauce

Starter Story · 2025-11-17

Our app flopped, so we rebuilt it and hit $30K MRR

Eyal and Yahli Hazan launched PropGPT, a sports betting analytics app, in the 2024 NFL season with influencer marketing: 45% install-to-trial but 13% trial-to-paid, stuck at $1-2K MRR. Realizing users wanted ready-made picks, they paused marketing and rebuilt for 4 months. After an April 15 relaunch and an NBA Playoffs push, conversion to paid passed 50% and MRR peaked at $40K 2.5 months later; now ~$30K/month, 40K+ downloads, 3,000+ payers, ~$3.30 per download, ~50% margins.

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5 tactics

PropGPT · B2C · sports betting picks app

Trial-to-paid went from 13% to 50%+; MRR $1.7K to $40K peak in 2.5 months

The first version made users go through sportsbooks, input their own bets and check whether each was good. Realized users just wanted to be given the right picks ('the answers to the test'). Shut down all marketing and spent four months on engineering and design only, rebuilding from scratch around pre-analyzed daily picks from their ML models. Relaunched April 15.

Workedproduct-activationfeature-development
Starter Story · 2025-11-17

PropGPT · B2C · sports betting picks app

Spotted 45% trial starts vs 13% paying; led to the rebuild

Used PostHog analytics, Superwall paywall data and user conversations to find behavior that didn't match the app's design. High install-to-trial (45%) with low trial-to-paid (13%) meant users wanted the promise but the product experience disappointed. Also: track onboarding drop-off to find screens that don't sell, and track feature clicks to find the most compelling value proposition to use in marketing.

Workedanalytics-attributionproduct-activation
Starter Story · 2025-11-17

PropGPT · B2C · sports betting picks app

~20 downloads/day and 5-10 trials/day, but stuck at $1-2K MRR

At first launch (mid NFL season), drawing on experience with other successful app founders, spent a few thousand dollars on influencer marketing to measure how many downloads the money bought.

Mixedinfluencer
Starter Story · 2025-11-17

PropGPT · B2C · sports betting picks app

Conversion to paid 50%+; $40K MRR peak 2.5 months later

About a month after the April 15 relaunch, went all in on marketing again timed to the NBA Playoffs; marketing now runs about $10K/month.

Workedinfluencerpr-launch
Starter Story · 2025-11-17

PropGPT · B2C · sports betting picks app

The ~70th video got 600K views; revenue run-rate jumped ~$8K to $38K in 3 days

Scaled with influencer marketing because followers engage deeply and convert when someone they admire uses the product; kept publishing videos (around 70 by the time one broke out) for the chance of a viral hit.

Workedinfluencerorganic-short-video
Starter Story · 2025-11-17

Numbers mentioned

WhoMetricValueContextWhen
PropGPTrevenueUSD 30K/month
approximate
1:29
PropGPTdownloads40K downloads
approximate
Over 40,0001:29
PropGPTpaying users3,000 customers
approximate
Over 3,000 paying customers1:29
PropGPTconversion rate48%Install -> trial, current1:29
PropGPTarpuUSD 3.3per download
approximate
Revenue per download1:29
PropGPTtime to milestone5 months
approximate
Time to build the first version2:02
PropGPTmarketing spenda few thousand dollars
approximate
Initial influencer marketing test at first launch3:04
PropGPTdownloads20 downloads/day
approximate
First version, from influencer marketing3:24
PropGPTtrial starts5–10 trials/day
approximate
First version3:24
PropGPTmrrUSD 1,000–2,000
approximate
Plateau with the first version despite influencer marketing3:34
PropGPTconversion rate45%
approximate
Install -> trial, first version6:55
PropGPTconversion rate13%
approximate
Trial -> paid, first version6:55
PropGPTtime to milestone4 months
approximate
Rebuild period with all marketing paused3:58
PropGPTmrrUSD 1,700At relaunch, after months of no marketing3:58
PropGPTdownloads15 downloads/day
approximate
At relaunch, no marketing3:58
PropGPTconversion rate50%
approximate
Conversion to paid (likely trial -> paid) after the rebuild, during the NBA Playoffs push; over 50%, up from 13%3:58
PropGPTmrrUSD 40K
approximate
Peak MRR3:58
PropGPTdownloads2,000 downloads/day
approximate
Peak single day3:58
PropGPTtime to milestone10 weeks
approximate
Relaunch to $30K MRR0:32
PropGPTviews600K viewsper video
approximate
Roughly the 70th influencer video ever published7:36
PropGPTarr+USD 38K
approximate
From ~8K to ~38K in about three days after one viral video (stated as ARR; may mean MRR)7:36
PropGPTmarketing spendUSD 10K/month
approximate
8:44
PropGPTcostUSD 0.2per conversionSuperwall fee per conversion8:44
PropGPTcost1%
approximate
RevenueCat fee as % of revenue8:44
PropGPTcostUSD 100/month
approximate
Real-time sports data APIs8:44
PropGPTcostUSD 10/month
approximate
Neon database8:44
PropGPTcostUSD 20/month
approximate
LLM costs8:44
PropGPTmargin50%
approximate
Overall margin after marketing and costs8:44