Sentry vs elumen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sentry
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Vending management system mobile app
elumen
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Introducing the elumen companion app, your one stop shop for configuring elumen smart products. Automatic discovery of nearby devices allows you to easily configure the test schedule for your self-test emergency lights, colour temperature of your battens, motion sensor settings, and much more!
Screenshots
Verdict
The clearest difference is update cadence: Sentry at every 5 days against elumen's every 3 weeks. 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.
Sentry ships an update every 5 days, elumen every 3 weeks. The most recent releases landed on September 17, 2026 and September 15, 2026 respectively.
| Parameter | Sentry | elumen |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 — better | 15.5 |
| Further details — not scored | ||
| Size | 48 MB | 72 MB |
| Age rating | 4+ | 4+ |
| Developer | General Retailing Technologies | WBS Technology |
In-app purchases
Sentry
No in-app purchases
elumen
No in-app purchases
