How MAS Helped ActFirst Improve its ARPDAU by 48%

ActFirst Games, the studio behind the hit RPG Obsidian Knights (available on iOS and Android), connected with Yodo1 through a former client who joined their team and recommended trying MAS. While ActFirst previously had a self-managed mediation setup, the team decided to test MAS to explore untapped monetization potential through automation and optimization of their strategy.

The Challenge: Boost Revenue With No Extra Weight or ANRs

Beyond ad revenue uplift, ActFirst had two non-negotiable requirements:

• Minimize app size. Large SDKs can significantly increase app size, reducing organic visibility and ultimately hurting install rates—something ActFirst wanted to avoid.
• Keep ANRs under Google Play’s bad behaviour threshold. Google penalizes apps if more than 0.47% of daily users experience ANRs (App Not Responding errors). This is especially risky when multiple SDKs are integrated.

The Solution: Geo-Optimized Network Setup + Smart ANR Control

To meet ActFirst’s goals, we implemented MAS with two key strategies:

• Geo-targeted network selection with size in mind. Instead of a one-size-fits-all SDK stack, we chose ad networks based on the regions that mattered most for Obsidian Knights — Russia, the USA, and South Korea. For example, in Russia, we initially prioritized Unity Ads over heavier SDKs like BIGO or Mintegral, helping to keep the app size lean without compromising revenue potential.
• Device-aware ad serving to reduce ANRs. One of MAS’s unique features is its ability to dynamically adjust ad serving based on device specifications. On low-end devices with limited RAM or CPU power, MAS can disable or defer ads to avoid app freezes — a common cause of ANRs. This proactive control happens remotely, requiring no additional work from ActFirst’s developers .

Together, these features let ActFirst monetize smarter, without sacrificing technical performance.

The Result: 48% ARPDAU Uplift with No Trade-Offs

ActFirst’s original monetization setup used AdMob mediation with Unity SDK. Yodo1 implemented a new formula under MAS umbrella : AppLovin mediation with AdMob and Unity.

We rolled MAS out in three phases:

• Phase 1: 10% MAS roll-out focused on monitoring ANRs. The selected configuration stayed well within Google Play’s ANR threshold.
• Phase 2: 50% MAS and 50% original setup, allowing for A/B testing. The results spoke for themselves — MAS outperformed the original setup by 26% in overall ARPDAU.
  • In Russia, ActFirst’s top market, MAS brought an 23% ARPDAU uplift.
  • In the USA, the second key region, the uplift reached 30%.
• Phase 3: 100% MAS roll-out across the full audience is now live. Together with ActFirst, Yodo1 decided to keep the phase 2 network set without additional tweaks. The results speak for themselves — overall ARPDAU increased by a significant 48%.

What comes next?

In the coming months, Yodo1 will support ActFirst in adding three more ad networks — Bidmachine, Moloco, and Mintegral — to further scale revenue uplift, while staying true to the original goal: keep app size small and ANRs low.

If you're also looking to boost ad revenue but feel that market solutions lack the customization you need — and managing it in-house doesn’t fully capture all revenue opportunities — it’s time to get in touch with Yodo1. We have build MAS to deliver the flexibility you need without adding pressure to your team — so you can focus on your game while we optimize for scale and revenue.

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