Comparison

NinjaLock vs Qrio Lock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

NinjaLock

Features
Read full description

[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.

About

Qrio Lock

This smart lock offers hands-free unlocking by automatically detecting your approach. It also features auto-locking when the door is closed and allows for easy key sharing with family and friends. Remote operation and notifications are available with an optional hub.

Highlights
  • Hands-free unlocking
  • Auto lock
  • Easy key sharing
  • No installation required
  • Remote operation with hub
  • Notifications
Features
Read full description

※ Available on iOS 14.0 or later. ※ Using Apple Watch requires watchOS 8.0 or later. ※ Please note that Qrio Smart Lock (Q-SL1) account can not be used. ◇ Hands-free unlocking There is no need to take out your smartphone. Just approach the door, Qrio Lock automatically unlock the key. ◇ Auto lock If you forget to lock the key when you go out, the new auto lock will be locked the door by detected the door has been closed. ◇ Support various doors and installation construction is unnecessary We are pursuing a design that fits to various door locks for the living environment in Japan. There is no need for key replacement or drilling. It can be installed safely in a rental house too. ◇ More freedom in the key-free lifestyle. Qrio Lock is family-friendly Qrio Lock is very convenient because you can create a key and share it easily with your family or acquaintances. With Qrio Lock, you can use it to suit your lifestyle. ◇ Security with remote operation and notification function By linking with Qrio Hub, you can operate Qrio Lock and receive notifications on your smartphone on the go. ※ "Hands-free unlocking" may consume the battery of the smartphone than usual because it uses GPS in the background.

Screenshots

NinjaLock4 screens
Qrio Lock3 screens

Verdict

The call

NinjaLock and Qrio Lock 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

NinjaLock ships an update every 2 months, Qrio Lock every 6 weeks. The most recent releases landed on September 19, 2026 and September 22, 2026 respectively.

ScorecardNo meaningful differences
NinjaLock versus Qrio Lock: the parameters behind the verdict, then further details
ParameterNinjaLockQrio Lock
PriceFreeFree
Rating—2.7 (3 ratings) — better
Positive reviews—12.7% of reviews
Number of ratings—3 — better
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS15.014.0 — better
Further details — not scored
Size8 MB103 MB
Age rating4+4+
DeveloperLinough Inc.Sony Network Communications Inc.

In-app purchases

None

NinjaLock

No in-app purchases

None

Qrio Lock

No in-app purchases

Questions

Is NinjaLock free?
NinjaLock is free to download, with no in-app purchases.
Is Qrio Lock free?
Qrio Lock is free to download, with no in-app purchases.
Do NinjaLock or Qrio Lock have ads?
Neither NinjaLock nor Qrio Lock shows ads.
Which is updated more often, NinjaLock or Qrio Lock?
NinjaLock ships an update every 2 months, and Qrio Lock every 6 weeks. Most recently, NinjaLock was updated on September 19, 2026 and Qrio Lock on September 22, 2026.

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