Locked - Stay Certain

Ever walked away… and felt the urge to check again?
Locked - Stay Certain helps you mark doors, windows, appliances, and other important items so you always know they’re secure when leaving home. 

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Designed to Reduce Second-Guessing

Whether your mind is playing tricks on you…
or you truly forgot something…

Locked gives you a simple, organized space to confirm what’s locked and what’s not.

No more:
• Re-checking doors
• Walking back home
• Wondering if the stove is off
• Asking your partner to verify
Just log it once - and move on.

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Everything in One Place

• Track doors, windows, garage, car, stove, or custom items
• Share locks with your partner or family
• Add photo & video notes for extra reassurance
• Set lock reminders before leaving
• Customize your app with premium themes
• Use mindfulness mode to reduce overthinking

Your home. Your rules. Your certainty.

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Stay Certain Together

With Share Mode, everyone stays on the same page.

Know who locked what and when - in real time.

Perfect for:
• Couples
• Families
• Roommates
• Frequent travelers

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Built for Peace of Mind


Locked isn’t just a checklist app. It’s a certainty system.

Created from a simple need: to turn a moment of doubt into a moment of certainty.

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Who Is Locked - Stay Certain For?


• People who double-check locks/items
• Anyone who forgets the stove sometimes
• Busy professionals leaving in a rush
• Families managing multiple entry points
• Anyone who values home security and mental clarity

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Distraction free

No ads, no noise - designed for clarity.

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Download Locked - Stay Certain today and leave home with confidence.

Privacy Policy:
https://lockedstaycertain.com/privacy-policy

Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/