KCK QR reader vs ScanRelay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KCK QR reader
Read full descriptionHide full description
【登下校管理】 ・登校を登録する 保護者が持参した児童のQRコードを読み取る事で、登校を登録します。 ・下校を登録する 登校と同様の手順で、下校を登録します。 【児童写真登録】 ・児童の写真を登録する 児童のQRコードを読み取り後、写真撮影してアップロードする事が出来ます。 アップロードする前に画像の確認や拡大、トリミングを行う事が出来ます。
ScanRelay
Read full descriptionHide full description
スキャンしたデータを瞬時にあなたのサーバーへ。 Webhookでリアルタイムデータ集約を実現します。
Screenshots
Verdict
The clearest difference is update cadence: ScanRelay at every 3 weeks against KCK QR reader's every 38 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
KCK QR reader ships an update every 38 months, ScanRelay every 3 weeks. The most recent releases landed on September 8, 2026 and May 19, 2026 respectively.
| Parameter | KCK QR reader | ScanRelay |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 38 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 3 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | CRITERIA Co.,Ltd. | Guncy Inc. |
In-app purchases
KCK QR reader
No in-app purchases
ScanRelay
No in-app purchases
Questions
Is KCK QR reader free?
Is ScanRelay free?
Do KCK QR reader or ScanRelay have ads?
Which is updated more often, KCK QR reader or ScanRelay?
Other comparisons
