Download Model Update, 11 April 2018

April, 6 2018

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Date live in Priori Data: April 11th, 2018

Model(s) updated: Downloads, DAUs, MAUs, ARPDAU

Platform(s) affected: iOS

What did the update do? 

For this release we re-fit the download model on historical data provided from additional publisher partners. 

As a result the MAPE (Median Absolute Percentage Error) improved in all countries, and in most categories.

Top 10 Countries in terms of App Level Download Accuracy Gains

% Improvement in Median Absolute Percentage Error, November 2017 - January 2018

Impact on usage estimates

Since our DAU, MAU and ARPDAU estimates are strongly dependent on the downloads predictions, we expect this update to have a positive impact on our DAU, MAU and ARPDAU estimates too.


Overall, better models means better accuracy. It's important to note that the changes in our estimates might affect some apps, publishers, and categories more dramatically than others. If you have questions about how a specific subset of our platform has been impacted, please contact us (

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