# Did I lock? — Go out without worries!

> Utility app to log door locking actions and reduce worry. (iPhone/iPad app by Yusaku Hatakenaka.)

- Source: https://appshunter.io/ios/app/did-i-lock/id1282374259 (this page in markdown: same URL + `.md`)
- Developer: [Yusaku Hatakenaka](https://appshunter.io/developer/1282374258)
- Category: Utilities, Productivity
- Price: Free
- Rating: 5.00/5 from 5 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 12 MB
- Languages: American English, Japanese
- Released: 2017-09-27
- Data updated: 2026-06-04
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/did-i-lock/id1282374259/reviews.md

## What is Did I lock??

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!

## Key features

- Log door locking actions
- Check history of locks
- Reduce post-departure anxiety
- Simple one-tap logging
- Confirmation of secured doors

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/did-i-lock/id1282374259/reviews.md

### 5/5 — Great app with more potential!

*2021-08-22*

I would like to check multiple things in one app (not many apps that each check one things).

Checking I’ve locked the door is very helpful but please consider:
- Oven
- Hair iron/straightener
- Set the alarm
- Unplugged the TV/computer
- Lock the car/bicycle

Maybe you can add an ‘open’ option so users can add anything they want to check.

### 5/5 — Nice!

*2018-06-18*

Good app! I wish there was a paid version with more features and no ads.

## Frequently asked questions about Did I lock?

### Does Did I lock? have ads?

Yes, Did I lock? contains advertisements. As it is a free application, ads are displayed to support its development and maintenance.

### How often is Did I lock? updated?

The latest version, 1.9.8, was released on December 12, 2020. While the app has not been updated recently, its core functionality remains stable for its intended purpose.

### What devices is Did I lock? available on?

Did I lock? is compatible with iPhone, iPad, and iPod devices. This ensures a wide range of Apple users can utilize its features.

### What is the age rating for Did I lock?

Did I lock? has an age rating of 4+. This indicates it is suitable for children and adults alike, with no mature content.

### Is Did I lock? free to download?

Yes, Did I lock? is available for free download. There are no upfront costs associated with acquiring the application.

### What do users think of Did I lock?

Did I lock? has received overwhelmingly positive feedback, holding a perfect 5.0-star rating from 5 reviews. This suggests a high level of user satisfaction with its utility.

### Can Did I lock? be used offline?

The core functionality of logging and checking your door's lock status does not require an internet connection. You can use Did I lock? to confirm your actions even without Wi-Fi or cellular data.

## Version history (last 5 releases)

### 1.9.8 — 2020-12-12

- Updated the icon.
- Added the "share locked location" button.

### 1.9.7 — 2020-10-13

Bug fixes and performance improvements.

### 1.9.6 — 2020-06-07

Minor update

### 1.9.5 — 2020-05-19

Bug fix

### 1.9.4 — 2020-01-21

- Dark mode added

## Apps similar to Did I lock?

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Baigal: Survival Toolkit](https://appshunter.io/ios/app/baigal-survival-toolkit/id6742563869) | — | Free | Utilities |
| [TCG Card Grading AI - Collecty](https://appshunter.io/ios/app/tcg-card-grading-ai-collecty/id6754278575) | 5.0 (3) | Free | Utilities |
| [MonoIog](https://appshunter.io/ios/app/monoiog/id6452193887) | 5.0 (2) | Free | Utilities |
| [RemLock - no more door stress!](https://appshunter.io/ios/app/remlock-no-more-door-stress/id1599940275) | 4.0 (3) | Free | Utilities |
| [Web Forensics Instant](https://appshunter.io/ios/app/web-forensics-instant/id6497873698) | 5.0 (1) | Free | Utilities |
| [Did I lock it?](https://appshunter.io/ios/app/did-i-lock-it/id6751820916) | 5.0 (1) | $0.99 | Utilities |

## More apps by Yusaku Hatakenaka

- [Tap Dojo](https://appshunter.io/ios/app/tap-dojo/id1411411744)
- [Sound Loop](https://appshunter.io/ios/app/sound-loop/id1420064497)

All apps by Yusaku Hatakenaka: https://appshunter.io/developer/1282374258

## Related topics

[did i lock it](https://appshunter.io/ios/topics/did-i-lock-it) · [yusaku hatakenaka](https://appshunter.io/ios/topics/yusaku-hatakenaka)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-04.*