Client Kit vs HENNGE Lock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Client Kit
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Client Kit is a network tool for use with the IIJ GIO Remote Access Service. This tool provides an additional authentication factor for VPN connections. Client Authentication - Client authentication is one component of two-factor authentication. It uses not only the username and password but also the unique information of the connected iPhone/iPad for authentication. - When you tap the Authenticate button, the device sends its unique information to the VPN server. The VPN server verifies whether the device information matches the information registered in advance. If the information matches, communication through the VPN server is permitted. - If no device information has been registered on the VPN server, it can be registered automatically by this tool. One Time Password - A one-time password is a password that can be used only once. - You can use the one-time password for VPN authentication when you subscribe to the Matrix Authentication option. - The one-time password is obtained from the displayed random number table using predefined locations. You must accept the license agreement below. https://www.iij.ad.jp/svcsol/agreement/pdf/GAM010.pdf
HENNGE Lock
This app offers One Time Password generation for secure second-factor authentication on compatible websites and services. It also provides enhanced security for specific cloud services, ensuring a smooth and protected login process.
- One Time Password (OTP) generation
- Second Factor Authentication (2FA)
- Secure login for compatible services
- Enhanced security for HENNGE One
- Seamless authentication experience
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HENNGE Lock provides standard Second Factor Authentication using One Time Passwords for any compatible website and service, as well as enhanced Second Factor Authentication for HENNGE One services for a seamless, secure login experience.
Screenshots
Verdict
The clearest difference is update cadence: HENNGE Lock at every 2 months against Client Kit's every 22 months. Client Kit's advantage is iOS requirement (15.6 vs 17.6). 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.
Client Kit ships an update every 22 months, HENNGE Lock every 2 months. The most recent releases landed on October 8, 2026 and September 23, 2026 respectively.
| Parameter | Client Kit | HENNGE Lock |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (4 ratings) — better |
| Positive reviews | — | 16.7% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 22 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 15.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 4 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Internet Initiative Japan, Inc. | HENNGE K.K. |
In-app purchases
Client Kit
No in-app purchases
HENNGE Lock
No in-app purchases
