The Product Manager's Best-Kept Secret

Professor Arpdau's web-based tools help you predict and unlock customer lifetime value.

Janin chart and Bondy curve
Game Analytics book cover

I Wrote the Book on Mobile App Analytics


Literally. This website is a collection of (mostly free) easy-to-use analytics and monetization tools developed by me, Russell Ovans. I wrote the book Game Analytics. Many of the concepts I describe in my book are provided here as a subscription-free service.

If you've read my book - thank you! If not, relax: we've got you covered.



It's as easy as 1-2-3-4


No account creation is required.

None of your company data is ever stored on our servers.

See our Terms of Use and Privacy Policy for details.

1. Retention Curve Creator

Knowing your retention curve's formula is the first step in projecting revenue. Plug in your observed D1, D3, and D7 retention values and get your model. Play around with various scenarios. It's free!


Start Here

2. LTV Predictor

How much revenue is each user expected to generate in their first n days? Now that we know your retention curve, enter your app's ARPDAU to predict LTV for new installs. Free to use!


Try It

3. DAU Predictor

How many daily active users (DAU) will you end up with? Let us predict your DAU. We are better, faster, and cheaper than your spreadsheet method. And it's free to use!


Check It Out

4. Geographical Pricing

Generate Google Play CSVs to bulk change your Android IAP prices and increase global monetization via Big Mac Index pricing. Works in seconds. Save time, convert more users.


Start Pricing

Customer service agents are standing by!

Customer support is available for our paid services. Send us an email. Be sure to include a screenshot of any error messages and attach any relevant files. If we can't fix it, we'll explain why and give you an immediate refund.