NinjaLock vs Smart Hello
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NinjaLock
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[NinjaLock Summary] This application provided by Linough Ltd. can be used for the “NinjaLock” smart lock device. Through the application, NinjaLock can be operated and its settings adjusted. [Preparations before use] To use the application, the smart lock device “NinjaLock” by Linough Ltd. is required. 【NinjaLock main features】 ▼Use your smartphone as a key! By attaching NinjaLock to the inside of your door (the thumb turn part of your lock), your existing smartphone can replace your key. ▼Invite your friends! By entering the telephone number of your friends on the “invitation” screen, you can transfer opening rights to other people. The opening rights can be set to specific time slots. ▼Various convenient features ! You can set various convenient features through the app, such as auto-lock function of the key after a specific time period, and the history of opening/closing.. [Price] Free [Note] This application requires Internet access. Please make sure to have a solid signal. Continued use of GPS running in the background can dramatically decrease battery life.
Smart Hello
Receive facility announcements via push notifications, manage reservations, and display your membership card. Check your application details on your personal page.
- Push notifications for announcements
- In-app reservation management
- Digital membership card
- Personal information viewing
- Cancel reservations
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【Smart Helloの主な機能】 ■お知らせ機能 施設からのお知らせをプッシュ通知でお知らせします。 ■予約機能 予約が必要な施設様の場合はアプリからご自身で予約の登録・キャンセルを行なっていただくことができます。 ■会員証機能 施設様へご来場するために必要な会員証をアプリ上で表示します。 ■マイページ機能 ご自身の申込情報をご確認いただけます。
Screenshots
Verdict
NinjaLock and Smart Hello are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 19, 2026 and September 21, 2026 respectively.
| Parameter | NinjaLock | Smart Hello |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 10.0% of reviews |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 8 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Linough Inc. | 株式会社システム ディ |
In-app purchases
NinjaLock
No in-app purchases
Smart Hello
No in-app purchases









