--- title: "PIN Keeper (Credit Cards) — App Overview" url: https://marlvel.ai/intel-report/business/pin-keeper-credit-cards category: Business developer: Hippo Games AM platforms: android rating: 4.3 (203 ratings) pricing: freemium report_level: overview generated: 2026-04-19 last_verified: "2026-04-19T12:08:19.307Z" --- > **Key Insight:** PIN Keeper provides a transparent, open-source approach to PIN storage with a focus on encryption and memory security. | Metric | Value | |--------|-------| | Category | Business | | Rating | 4.3 ★ (203) | | Pricing | freemium | | Platforms | Android | | Latest Version (Android) | 2.01 | | Developer | Hippo Games AM | ## What is PIN Keeper (Credit Cards)? PIN Keeper is a security-focused utility designed for storing sensitive PIN numbers using AES encryption. The app distinguishes itself through an open-source codebase and runtime memory protection, offering both free and premium tiers for data management. ## Key Features - **Security Architecture**: Utilizes AES encryption and secure memory protection at runtime to safeguard stored data. - **Access Control**: Secures the application interface using a 4x4 pattern key. - **Data Management**: Provides up to 5 storage slots in the free version, with an option to expand to 31 slots via premium. - **Cross-Platform Sync**: Enables synchronization across multiple devices as a premium feature. ## Who is it for? Users seeking a secure, localized, and open-source solution for managing multiple PIN codes. ## Links - [Google Play](https://play.google.com/store/apps/details?id=com.PinKeeper&hl=en&gl=us) - [Full Intelligence Report](https://marlvel.ai/intel-report/business/pin-keeper-credit-cards) --- *This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/business/pin-keeper-credit-cards).* *Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*