Did I lock? vs Lock Up Reminder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Did I lock?
This utility helps alleviate the anxiety of forgetting to lock your door. Simply tap the app after securing your home, and a history log will confirm your action, saving you a trip back to check.
- Log door locking actions
- Check history of locks
- Reduce post-departure anxiety
- Simple one-tap logging
- Confirmation of secured doors
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If you often think "Did I lock the door?" after you leave home, this app can be a help for your feeling of uncertainty! Here is how it works: - it is very simple "Lock the door then Tap the app"- For example, fifteen minutes after you leave the house, if you start to think "Did I lock the door?". Rather than run back home to check, simply look at your "Lock Checker" app. The check history you made in the app when you locked the door confirms it's done. If there is no check-history, you better go back. "Lock Checker" just saved your day from disaster! No need to check or re-check from today. No worries at all!
Lock Up Reminder
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Lock Up Reminder is the simple way to stop wondering "did I lock the door?" halfway down the street. Add the things you always forget to check — the front door, garage, car, mailbox, gate, whatever matters to you — and check their status with a single tap. Each one gets its own physical, satisfying toggle: a rotary deadbolt for locks, a rocker switch for lights and appliances, a swinging door for anything that opens and closes, and a security shield for anything armed or disarmed. HOW IT WORKS • Add a reminder for anything you check before leaving — a door, a garage, a car, even the stove • Pick the state type that fits: Locked/Unlocked, On/Off, Open/Closed, or Armed/Disarmed • Tap to toggle, and see its status at a glance from the Reminders screen • Optionally require you to be near the location before you can mark something checked, so you can't just tap it from the couch Lock Up Reminder doesn't connect to your locks, cameras, or any smart home hardware — it's not trying to control anything. It's just a fast, dead-simple way to build the habit of checking, so you can leave the house with a clear head.
Screenshots
Verdict
The clearest difference is in-app purchases: Did I lock? at none against Lock Up Reminder's 1. Did I lock? also leads on iOS requirement (11.0 vs 17.0). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Lock Up Reminder sells 1 one-off in-app purchase. Did I lock? asks for nothing beyond the download.
| Parameter | Did I lock? | Lock Up Reminder |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 6 weeks | — |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Yusaku Hatakenaka | Terabyte Development LLC |
In-app purchases
Did I lock?
No in-app purchases
Lock Up Reminder
- Premium Supporter$1.99









