Reach your next phase of growth.
We bring the proven strategies and systems from working across dozens of consumer subscription products, and put them to work to reach your growth goals with speed and confidence.
Selected clients



Michael Berliner
Founder of Otter Growth Advisory. Michael led product growth at MasterClass through its pandemic-era boom and built PLG at Calm from the ground up. Now he works hands-on with founders and product teams to find their next phase.
How we help
Growth Strategy & Roadmap
Where growth is coming from, where it's leaking, and what will move the needle.
User Acquisition
Build, optimize, and scale the right channels for your business.
Conversion & Product Optimization
Where the funnel underperforms and why, then prioritized experiments.
Activation & Retention
The early behaviors that predict whether a user sticks or churns.
Pricing & Packaging
Willingness-to-pay research and plan structure that grows revenue.
Team Building & Mentorship
Assess the growth team and fill the capability gaps that matter.
Fractional CPO / CMO
Embed with your leadership team as a hands-on product and growth lead.
Case studies
What clients say
You saved us a good one to two months of iterating on process and tooling, because you supplied the whole package. Here is the growth experimentation team package. Let's apply it and start shipping. That was the biggest key value I could point to and say: yes, this was worth the money and the investment.
Michael led our conversion and pricing growth teams for several years. He is truly an artist in this domain, with incredible intuition on what is going to work and relentless execution on fast iterative experimentation to prove hypotheses quickly.
A lot of people work with consultants, and when the consultant is gone they feel like they have nothing left. This is money spent that endures.
I love that he focused on ROI and came in opinionated with priorities for the company. Michael's super flexible. He added value at every level of the engagement. And I would work with him again.
We brought Michael onboard before our Series A to lead our growth efforts, particularly around testing and experimentation. Since then we have tripled our headcount and 20x'ed our user base with millions of subscribers.
Michael is a doer more than a talker. Especially in marketing, people talk a lot and don't do a lot.
I think you're a badass. I think you add a ton of value. I feel like I've learned a lot from you in the last year.
Resources
Latest thinking
The paywall audit: three levers, and the five things people get wrong
The paywall is your highest-leverage surface for LTV:CAC and it runs on three levers, not one: how well it converts, where it sits relative to value, and the LTV of the plan people end up on. The five things I see missed most, each with its source.
Paywall optimization: six changes that lift conversion without touching price
Six paywall changes that lift conversion without touching price, each with a named source and a real effect size, plus the order to run them in. Framing and the default go first: cheapest to ship, and they move the plan mix.
Subscription app benchmarks: the two funnel shapes your numbers reveal
Give me eight of your numbers and the shape of the problem usually declares itself. Top of funnel, monetization, or retention. Here are the two shapes I see most, why a blended median hides both, and how to build the column you should actually be compared against.
Growth notes, in your inbox
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