Hidden msg vs Sentrylink
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hidden msg
Securely send and receive hidden files within iMessage. Protect your sensitive data with Touch ID/Face ID authentication. Customize the visible placeholder image for unauthorized viewers.
- Send and receive hidden files in iMessage
- Touch ID/Face ID protection
- Customizable placeholder image
- Secure storage on Apple servers
- iCloud account required
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Don't be afraid anymore that someone sees your exchanged files in iMessage. Hidden msg for iMessage allows you to send and receive hidden files. It is also protected by Touch ID / face ID ;) • You choose the picture that will appear for all unconcerned/unauthorized persons. • You choose the file that will be visible only for the concerned/authorized person. • If Touch ID / Face ID is configured, no one can see the hidden file except the concerned/ authorized person. PS : Because of the importance of your privacy, all your files are stored on Apple's servers in order to ensure security and reliability. Therefore, it is necessary to have an iCloud account.
Sentrylink
This app allows you to remotely open your front door, view live video and audio of visitors, and share temporary door codes. You can also review unlock logs and communicate with guests via video call.
- Remote door unlocking
- Live video and audio feed
- Shareable temporary door codes
- Unlock log history
- Video calls with visitors
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Sentrylink is a smart video intercom solution. Doordeer app is an important tool for: - Remote open front door by swiping on mobile screen of this app. - Live video and audio to check the front door. - Share doorcode to guests who can use it to open front door in the specified period. - Search all unlock logs from cloud storage and playback. - Receive call message and start video-talk with the visitor in front of doordeer panel.
Screenshots
Verdict
The clearest difference is update cadence: Hidden msg at every 3 months against Sentrylink's every 16 months. Hidden msg also leads on iOS requirement (10.0 vs 12.0). Sentrylink's advantage is review sentiment (33% vs 14%). On price, ads, in-app purchases and monetization model 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.
Hidden msg ships an update every 3 months, Sentrylink every 16 months. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.
| Parameter | Hidden msg | Sentrylink |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (6 ratings) — better | — |
| Positive reviews | 14.3% of reviews | 33.3% of reviews — better |
| Number of ratings | 6 — better | — |
| Update frequency | Every 3 months — better | Every 16 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 4 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | Malek Radhouani | Langtao Digital Co., Ltd. |
Customer experience
Hidden msg
Sentrylink
In-app purchases
Hidden msg
No in-app purchases
Sentrylink
No in-app purchases
Questions
Is Hidden msg free?
Is Sentrylink free?
Do Hidden msg or Sentrylink have ads?
Which is updated more often, Hidden msg or Sentrylink?
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