Master Key Manager

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Everyone
50+
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Everyone
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About this app

Master Key Manager is the professional locksmith's digital toolkit - built by a locksmith with 40 years of experience.

MASTER KEY SYSTEMS MADE SIMPLE
Create complete master key systems in minutes, not hours. Our algorithm automatically generates all valid change keys while eliminating MACS violations. Support for 5, 6, and 7-pin systems across 10 major manufacturers: Schlage, Kwikset, Corbin Russwin, Sargent, Yale, Best, Arrow, Weiser, Dexter, and Weslock.

DIGITAL WORKBOOK

Say goodbye to paper bitting charts. Your entire master key system lives in the cloud - accessible from anywhere. Track which keys are available, in use, or used. Assign keys to doors with blind codes for customer security.

YOUR DATA, YOUR VAULT

Your master key systems are stored in your own private vault. Only you and your employees have access - no one else. Not even us.

CONTROL KEY RECOVERY

Lost a control key? Recover it in seconds. Supports Best A2 SFIC cores, Corbin Russwin System 70 LFIC cores, and Sargent LFIC cores.

PINNING CALCULATOR

Calculate pin stacks instantly for any cylinder. Plus, get the correct pinning for SFIC and LFIC cores in seconds - with exact pin sizes. No more manual math or looking up cut depths.

QR CODE TRACKING

Two types of QR codes keep you organized:

Door QR Codes - Permanent. Stays with that building and door for life. Scan it anytime to see the current key assignment, history, and door details.

Key QR Codes - Tied to a specific change key. When a door gets rekeyed, the old key's QR code retires along with the old change and blind code. The new key gets a fresh QR code.

Perfect for property management and building walks. Know exactly which key goes where without flipping through paperwork.

PROFESSIONAL REPORTS

Generate PDF reports for your customers. Door schedules, key lists, and system summaries ready to print or email.

CLOUD-BASED & SECURE

Your data syncs across devices in real-time. Device management prevents unauthorized access.

SUPPORTED MANUFACTURERS

Schlage, Kwikset, Corbin Russwin, Sargent, Yale, Best, Arrow, Weiser, Dexter, Weslock (plus Baldwin, Emtek, and Defiant which share pinning specs)
Updated on
Feb 12, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Financial info and 4 others
Data is encrypted in transit
You can request that data be deleted

What’s new

Constants Support — Master key systems now support up to 3 constant positions. Constant positions maintain master key values across all pages while rotating positions calculate normally.
Legacy System Import Improvements — Importing legacy systems no longer requires date input, making it faster and easier to bring your existing systems into the app.
UI Enhancements — Improved workbook headers, page counts, and pinning grid layout for a better experience on all screen sizes.
Content rating
Everyone
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App support

About the developer
Master Key Manager LLC
Jerry@MasterKeyManager.com
17556 E Crestline Ave Centennial, CO 80015-2509 United States
+1 303-910-7287