Critical Moments
Mobile App Growth SDK: revenue, notifications, ratings, target, and more
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Critical Moments is an open-source mobile growth SDK for smart notifications, in-app messaging, feature flags and paywall timing.
- for
- Mobile app developers who want to boost conversion, retention and ratings.
- pricing
- open source
- license
- MIT
- 0.9.9v0.9.9 CriticalMoments Release2 years ago
- appcore-v0.9.9Appcore v0.9.9 Library Release2 years ago
- 0.9.8v0.9.8 CriticalMoments Release2 years ago
Key features
- Smart Notifications — Deliver notifications at the moment users are most likely to engage.
- In-App Messaging — Show rich, native in-app messages without updating the app.
- Smart Feature Flags — Adapt feature flags based on over 100 live device conditions.
- Paywall Timing — Trigger paywalls at optimal moments based on user behavior.
- App Rating Prompts — Prompt users to rate the app at the best time to improve ratings.
- Remote Bug Alerts — Target affected users with urgent announcements or fixes without a new release.
Use cases
- Increase conversion by targeting users with timely purchase nudges
- Reduce churn through context-aware push notifications
- Boost app store ratings with optimal rating prompts
- Optimize revenue by showing paywalls at high-intent moments
- Deploy critical bug notices instantly without app updates
Critical Moments vs alternatives
 Critical Moments |  InstaDiv : in-app survey & messaging for mobile apps |  Corbado | |
|---|---|---|---|
| Best for | Targeted growth automation for mobile apps | In-app survey & messaging | Passkey authentication |
| Pricing | Open source | Free | Free |
| DevHunt upvotes | 1 | 2 | 73 |
| Launched | May 2025 | Jan 2024 | Mar 2024 |
- Critical Moments vs InstaDiv : in-app survey & messaging for mobile apps: Focuses on in-app surveys and messaging rather than full growth automation
- Critical Moments vs Corbado: Provides authentication rather than growth tools
Critical Moments FAQ
What does Critical Moments do?+
It provides an SDK that lets mobile apps send smart notifications, in-app messages, feature-flag controls and paywall triggers based on real-time user conditions.
How is the SDK integrated?+
Integration is described as fast and easy; developers add the open-source SDK to their app and configure conditions for each growth tool.
Can I show messages without releasing a new app version?+
Yes, the in-app messaging and remote bug alert features work without updating the app, using cloud-based logic.
Does Critical Moments support feature flags?+
Yes, it offers smart feature flags that adapt based on over 100 device and user conditions, configurable from the cloud.
Is the SDK free to use?+
The SDK is open source, so it can be used without licensing fees.
Summarized by DevHunt from criticalmoments.io · Sep 28, 2026. Details may change; check the official site.
