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Store Extensions
IAP Promo integration
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IAP Promo


IAP Promo allows developers to easily promote micro-transactions. Use it to target different players with unique purchase opportunities at various points in the game.

Example IAP Promo showcase
Example IAP Promo showcase


Your game must use Unity version 5.4+, and enable the following services:

Note: Unity recommends using the latest Unity IAP SDK (1.2+) and Unity Ads SDK (2.3+) for access to the latest features. Using older versions of the SDKs may cause initialization errors.

IAP Promo compoments

There are three major components of an IAP Promo, all of which have their own articles:

Placements trigger fill requests, whereby the feature searches associated Promotions for targeted Products to show the player. Players can make in-app purchases directly from the resulting interstitial ad.

High-level overview of the IAP Promo fill request process
High-level overview of the IAP Promo fill request process

Maximizing revenue with machine learning

IAP Promo eliminates the need for traditional A/B testing methods. Its machine learning software leverages the aggregated data in Unity’s network, looks for data patterns, then feeds them into a model to improve your game. This enables personalized offers, even for brand new players. This completely automated service works around the clock.

How it works

When a Placement makes a request, the system looks at all available Products that are eligible to display. It then applies business criteria filtering (for example, geographic or OS targeting), and uses data science to select the best Product for a user given the remaining options. The model considers many data points to inform its choice, such as device characteristics and player session behavior. We define the best offer as the Product that maximizes lifetime value (LTV).

Getting started

To leverage IAP Promo’s machine learning feature, simply add multiple Products to a Promotion, and let Unity do the work.

Consider for example a Promotion that targets players when they complete a level:

  • When the player completes a level, the game calls an ‘EndLevel’ Placement. The Placement’s fill request returns a list of three possible Products:
    • A $1.99 currency bundle with a 10% bonus
    • A $2.99 currency bundle with a 10% bonus
    • A $4.99 currency bundle with a 10% bonus
  • The system finds that the player meets targeting criteria for all three offers.
  • The algorithm determines which currency bundle best maximizes the player’s LTV(Lifetime Value) The estimated value of an average player over their lifetime with your application or game. More info
    See in Glossary
    , and displays that offer.

We recommend supplying at least three price points per Promotion (low, medium, and high), with appropriately commensurate payouts. As with any data-driven model, the more data points available, the more effective it is. There is no limit to the number of Products you can add to a Promotion; you may even choose to provide a Product for each price tier in the game’s app store.

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Store Extensions
IAP Promo integration