Sentry Pass vs U
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sentry Pass
This app simplifies community entry management by allowing users to submit daily surveys and photos for visual validation. It issues scannable QR code passes that expire nightly and tracks visits with check-in/check-out functionality. Detailed reports provide insights into entries and allow for pass revocation.
- Daily surveys
- Photo submission for validation
- Programmable QR code passes
- Visit monitoring with check-in/out
- Detailed reports and notifications
- Pass revocation
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SENTRY (Safe Entry) is the easiest way to empower your community to fill out a survey. - It offers the following: - Daily Surveys Simple, daily surveys - Submit Photo Say cheese! Respondents submit a “selfie” photo for visual validation purposes. - SENTRY Pass Distribute daily passes Issue SENTRY passes that expire each night, with scannable, programmable QR codes. In the PunchAlert app or any web browser. Customize the colors, expiration times, and more. -Monitor Visits Check in with your Pass. Keep track of who is on property by enabling any scan of the SENTRY pass to check you in and out. No extra hardware required. Use any device’s camera app to do the scanning! - Reports and Notifications Review daily reports View detailed summary reports filtered by day, time, role, list, pass status, and check-in status. Drill down to evaluate successful or failed entries, and even revoke passes as necessary.
U
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U-manager is a tool app used to manage u-nas servers. It can automatically search u-nas servers in LAN, log in to NAS system, view server information, wake up devices with WOL, monitor the system in real time, manage users and user groups, raid, logical volume, shared folder, etc., and operate remote servers.
Screenshots
Verdict
The clearest difference is iOS requirement: U at 11.0 against Sentry Pass's 13.0. On price, update cadence, ads and in-app purchases 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.
Sentry Pass ships an update every 2 months, U every 5 weeks. Both last shipped on September 10, 2026.
| Parameter | Sentry Pass | U |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (7 ratings) — better | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 21 MB |
| Age rating | 4+ | 17+ |
| Developer | Punch Technologies, Inc. | Ningbo Wanyou Electronic Technology Co., Ltd. |
In-app purchases
Sentry Pass
No in-app purchases
U
No in-app purchases
