Family of Five, One Smart Lock: Real-World Review After 90 Days

Life Without Keys? Yes, Please.

With three kids, two working parents, and a constant flow of guests and deliveries, our front door used to be a source of daily stress.

Lost keys. Locked-out kids. Forgotten spares — we’ve been through it all.

But after 90 days with the Lockin Palm Vein Smart Lock, everything changed:

• Mom uses her palm to unlock — it’s fast, touch-free, and grocery-bag friendly.
• Dad prefers the fingerprint scanner — quick, reliable, no fuss.
• Our teen daughter has her own PIN code, set via the app.
• The younger two use a smartphone with the Lockin app, with parent-controlled access.
• And Grandpa? He uses his palm too — surprisingly easy, even for someone not tech-savvy.

Real-World Security, Built for Families

We weren’t just looking for convenience — we wanted peace of mind. Lockin delivered:

• Palm vein recognition identifies people by their internal vein patterns — more secure than fingerprints, and it works for kids, elders, and messy hands.
• We get real-time alerts whenever the door is unlocked — no matter where we are.
• Temporary guest codes for the cleaner and dog walker expire automatically.

A Note for Families with Elders at Home

While researching, we came across a Reddit post that hit home:

“My elderly mother-in-law is moving in. We want a smart lock with app control — but she needs to use a key. No keypads or touchscreens. She’s not good with tech. We just want to know the door’s locked without confusing her.”

We get it. That was one of our concerns too.

With Lockin, a minimalist design comes with an equally smooth user experience.

There’s no need to enter codes or touch the screen — just raise your palm and the door opens.

Even our grandpa uses it confidently — no app, no steps to remember, no learning curve.

15-Minute Install. Quick Setup Using Common Tools

We expected a DIY headache, but installation was fast and smooth.

Lockin fit right into our existing deadbolt holes — One Person, One Screwdriver.

The app guided us through setup step by step.

Even our 8-year-old figured it out in a day.

Battery Anxiety? Gone.

In three months, we’ve only charged the lock once — seriously.

Lockin also supports an optional solar panel, which we plan to add.

It’s a truly hands-off power option powered by sunlight.

No cables, no stress, no maintenance.

👉Get the smart lock + solar panel bundle here.

Why Lockin Works for Real Families

Smart, secure, and made for everyone.

• Venokey™ Palm Vein Recognition

Unlike traditional biometrics, Lockin’s Venokey™ tech scans beneath your skin to recognize unique vein patterns.

It’s fast (0.17s), hygienic, and accurate (99.9%), even for sweaty hands, aging skin, or tricky fingerprints. Just wave your hand — done.

• App Control & Real-Time Alerts

Check lock status anytime, from anywhere. Lock and unlock remotely.

Enable auto-lock and get notified when someone enters — peace of mind at your fingertips.

• Optional Solar Power

Add a solar panel (sold separately) to power your lock with sunlight.

No more recharging, no wiring, and zero effort.

• Easy DIY Setup

Installs in under 15 minutes using standard deadbolt holes.

Simple installation with just a few tools—no hardwiring or hiring required.

• Elder-Friendly & Kid-Friendly

Designed with simplicity in mind.

Kids can unlock via app or fingerprint, and elders just need to raise a hand — no screens, no codes, no confusion.

• Works with Smart Home (Matter Compatible)

Lockin supports Matter for integration with your home ecosystem.

Pair it with lights, cameras, and voice assistants like Alexa or Google Home to automate your entryway.

• Privacy First

All biometric data is stored and processed locally on the device.

Nothing is sent to the cloud — your data stays home, safe and private.