Your pricing model shapes your growth strategy. If you pick the wrong one, you could burn the budget on the wrong users. However, if you pick the right one, you can scale profitably with confidence.
This is the 8th installment in Gamelight’s Growth Guides, a practical content series designed to help UA managers, growth marketers, and mobile teams master the fundamentals of app growth.
In this guide, we’ll break down the most common user acquisition pricing models, what they mean, and when to use them:
CPI (Cost Per Install)
CPA (Cost Per Action)
Hybrid models
Rewarded models
Offerwalls
And that’s not all: we’ll wrap up with a quick decision framework so you can pick the right model for your app’s stage, goals, and budget.
CPI (Cost Per Install)
What it is
You pay each time someone installs your app after seeing your ad. This is the most common UA pricing model for mobile apps.
Example:
If you buy 1,000 installs at $2 CPI, you’ll spend $2,000.
When it works best
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Soft launches, to quickly test markets and creatives
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Games or apps with clear monetization funnels
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When you want predictable install volume
While CPI remains one of the simplest entry points into user acquisition, its biggest limitation is how it treats every install the same. It measures volume, not value, and that can make optimization tricky.
Joep Van Duinen, Head of Developer Partnerships at Poki, explains why UA teams need to think beyond installs when relying on CPI:
CPA (Cost Per Action)
What it is
You pay only when a user completes a specific post-install action, such as:
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Completing a tutorial
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Reaching a level
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Making a purchase
Example:
If you pay $10 per purchase and get 100 purchases, you spend $1,000, regardless of how many installs happen.
When it works best
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When quality is more important than volume
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Apps where install alone isn’t enough
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Retargeting campaigns
Hybrid Models
What it is
A combination of CPI and CPA. You might pay a base CPI plus a bonus for completing a specific action, or use a sliding scale based on quality.
Example:
$1 per install + $5 if the user reaches level 5.
When it works best
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When you want both volume and quality
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Mid to late-stage scaling
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Working with partners who can optimize for both installs and actions
This balance between scale and quality is exactly why hybrid models have become more popular among mature UA teams.
As Antonina Belova, Growth & Partnerships Manager at GenieLabs, puts it:
Rewarded Models
As Antonina Belova, Growth & Partnerships Manager at GenieLabs, puts it:
What it is
Users receive a reward, like in-game currency, for installing and engaging with your app.
Example:
Install and open App X to earn 50 coins.
When it works best
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Casual games or apps with a broad appeal
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Emerging markets where rewards boost installs
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Boosting early store rankings
Offerwalls
What it is
A type of rewarded UA where users can choose from a list of “offers” (for example, install an app, reach a level, subscribe) to earn in-game rewards.
When it works best
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Apps with economies that support big in-game rewards
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Campaigns that can track deep-funnel events
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Diversifying UA mix beyond traditional ads
From Acquisition to Value:
Why Pricing Models Don’t Stop at Install
Choosing the right pricing model isn’t just about how you acquire users, but how those users behave and generate value after they enter your app. Different models often bring in different types of users, which means your monetization approach needs to adapt accordingly.
As Ivona Pinjak, Senior Ad Monetization Manager at GameBiz Consulting, explains:
Ultimately, the real impact of any pricing model is measured not at install, but in how much value those users generate over time.
Which Model Is Right for You?
If you want…
Volume & speed: Start with CPI
Quality over quantity: Go with CPA
Both volume & quality: Test Hybrid Models
Quick boosts in rankings: Use Rewarded Models
Deep engagement incentives: Try Offerwalls
Pro tip: Most successful UA strategies use a mix of these models, adjusting the balance based on campaign goals, market performance, and seasonal shifts.
Bringing It All Together
Your pricing model isn’t just a payment method: it’s a growth mechanism. CPI gives you speed, CPA gives you precision, hybrids give you balance, and rewarded channels give you scale. Offerwalls add flexibility and engagement depth.
At Gamelight, we’ve seen how effective rewarded models can be when they’re aligned with user intent and supported by strong segmentation. When integrated thoughtfully into a broader UA strategy, rewarded campaigns can drive both scale and meaningful post-install engagement without compromising on quality.
