# bitlock vs お知らせコンタクト

The clearest difference is ads: bitlock at none against お知らせコンタクト's shown. お知らせコンタクト's advantage is update cadence (daily vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

bitlock ships an update monthly, お知らせコンタクト daily. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | bitlock | お知らせコンタクト |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 85.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Daily** |
| Monetization | Free | — |
| Size | 15 MB | 27 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bitkey, inc.](https://appshunter.io/developer/1434010636) | [Furugaki Tomiyuki](https://appshunter.io/developer/1875683438) |

## What reviewers say

### bitlock

[App page](https://appshunter.io/ios/app/bitlock/id1434010637)

Securely manage your home keys using your smartphone. Grant temporary access to friends and family by sending digital tickets. Control and monitor your smart lock device remotely.

**Highlights:** Unlock/lock smart lock via Bluetooth, Share temporary access tickets, Request access tickets, Manage smart lock devices, Add administrators, Receive unlock/lock notifications

**Features:** Vision Pro support

**In-app purchases:** none


### お知らせコンタクト

[App page](https://appshunter.io/ios/app/id6760299938)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is bitlock free?

bitlock is free to download, with no in-app purchases.

### Is お知らせコンタクト free?

お知らせコンタクト is free to download, with no in-app purchases.

### Do bitlock or お知らせコンタクト have ads?

お知らせコンタクト shows ads; bitlock does not.

### Which is updated more often, bitlock or お知らせコンタクト?

bitlock ships an update monthly, and お知らせコンタクト daily. Most recently, bitlock was updated on October 1, 2026 and お知らせコンタクト on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*