Grifin

Grifin

Buy Stock Where You Shop

Coming soonLaunches Monday, Nov 9 · in 7 days

Finance

What is Grifin?

It's simple: Spend with the businesses you use every day and Grifin automatically invests $1 in those companies for you, each time you spend there. Fun, human investing.

How it works: Each time you spend at over 3,000+ publicly-traded companies and subsidiaries, Grifin automatically withdraws $1 from your bank and invests that $1 in that company's stock. Each week, your dollars are added up and invested to buy your stock!

Personalized and on your terms: Set a custom weekly investment limit, pause for a week at a time, adjust your appetite for risk anytime, invest more than $1 per transaction, "block" any company you don't want to invest in, and many more customization features.

With Grifin, you can finally feel confident enough to start investing for the first time. Grifin makes investing fun, with full, unlimited access from as little as $5/mo - cancel anytime.

Once you're set up, just keep living your life as you normally do. As you shop/spend, Grifin will automatically invest $1 with each purchase you make.

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Publisher

Joined Oct 2026

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FounderPlaybooks.

What other founders did to grow.

2722 dispatches from hundreds of founders, pulled from the week's best podcasts.

Shipping
the biggest wins we found were always like the third or fourth swing at something because you ship something you realize it doesn't work and if you move on immediately then unless you were completely off base it doesn't work

Your Biggest Product Wins Come On The Third Or Fourth Attempt At The Same Problem

Dan's repeated experience at Codeacademy: the first and second attempt at any meaningful product problem rarely land. Engineers need time to learn the codebase area; designers need to internalize the nuances; the team needs to build intuition. The teams that win are the ones that stay focused on a problem long enough to take three or four shots — and look for 'signs of life' in test variants rather than declaring failure and moving on.

Distribution
We learned Spark, which is just whitelisting on TikTok but taking the coach's organic content and turning that into an ad and pointing that in a direction that we set. That was explosive very quickly for us.

Spark Ads — whitelisting organic coach content as an ad — was explosive for Ladder

TikTok's Spark Ads let you take an organic post from a creator's account, boost it with paid budget, and control the CTA destination. For Ladder, this bridged the organic-to-paid gap: proven organic content became the ad creative, so social proof (real follower counts, organic engagement) was visible to paid audiences. This hybrid format outperformed brand-produced ads because TikTok's algorithm treats Spark Ads like organic posts.

There's a play for whatever you're stuck on.

Read all 2722 playbooks