Cost Per Trial = Total GAC Spend / Trial Starts. Cost Per Subscriber = Total GAC Spend / Paid Conversions. ROAS = Revenue from GAC Users / Total GAC Spend. For example: $10,000 / 1,125 subscribers = $8.89 cost per subscriber. If annual plan = $59.99: ROAS = (1,125 x $59.99) / $10,000 = 6.75x.
Always optimize for in-app events (like trial start or subscription purchase) rather than installs. Install-optimized campaigns attract low-quality users who never convert. Event-optimized campaigns cost more per install but deliver users who are far more likely to subscribe. Feed your subscription events from Botsi to Google for best results.
Provide the maximum: up to 5 text headlines, 5 descriptions, 20 images, and 20 videos. More creative gives Google's ML more combinations to test, leading to better performance. Refresh creative every 4-6 weeks to combat ad fatigue. Video assets, especially short (15-30 second) demos, tend to drive the best subscription conversion rates.
Set up server-to-server conversion tracking by sending subscription events from Botsi to Google Ads. This allows GAC to optimize for high-value users, not just installers. Track cost per subscriber and ROAS by campaign, not just CPI. Use Google's conversion value reporting to see which campaigns drive the most lifetime revenue.
Incorporating game-like elements—such as points, streaks, badges, or level progress—into the app experience to increase user motivation, engagement, and long-term retention. Gamification is often used to reinforce daily habits or reward subscription milestones.
Google's official framework for handling in-app purchases and subscriptions on Android devices. It provides APIs for managing trials, renewals, grace periods, and refunds, and is required for processing payments through Google Play.
A limited time window following a failed renewal attempt during which a subscriber retains premium access while payment retries occur. Grace periods help reduce involuntary churn and provide a softer billing experience for users with temporary payment issues.
The total subscription income earned before deducting app store platform fees, refunds, or taxes. Gross revenue provides a top-line view of monetization performance and is often contrasted with net revenue for financial analysis.
A compounding system where actions from existing users (like referrals, content sharing, or community engagement) lead to new user acquisition, which in turn fuels more engagement and further growth. Growth loops are more sustainable than linear acquisition models and often enhance LTV over time.
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