Spok Mobile vs UVDI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spok Mobile
This app facilitates critical messaging and alerting for professionals in healthcare, government, and public safety. It enables secure communication for urgent situations, with some features requiring a subscription to a supported system.
- Critical messaging
- Alerting
- Healthcare communication
- Government communication
- Public safety communication
- Secure messaging
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Spok Mobile™ is a critical messaging / alerting application for use in healthcare, government, and public safety environments. Some functionality requires a subscription / connection to a supported Spok system.
UVDI
Control and monitor a UV room sanitizing system remotely. This app uses Bluetooth to communicate with the device, allowing you to start, stop, and upload cleaning cycle data to the cloud for analysis. Maximize your investment in ultraviolet technology with smart data reporting.
- Remote cycle status and start-up
- Bluetooth Low Energy data download
- Cloud-based data reporting
- Background cycle tracking
- UVDI-360 Room Sanitizer System control
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The app helps control and monitor the cycle of the UVDI-360 Room Sanitizer System. The app also helps enable the usage of data transmission from the device to the cloud. Powerful ultraviolet technology together with smart data reporting ensures that you maximize your facility’s investment and get the efficacy you’re counting on. The iOS Device here uses as Central Device & UVDI-360 UV Device as Peripheral. We can command that Peripheral (UVDI-360 Device) start the cleaning cycle, stop cycle & Upload cycle info to cloud using the BLE Technology from the iOS Device (Central Device). Key Product Features . Allows for remote cycle status and start-up. . Uses Bluetooth Low Energy technology to automatically download data to the app. . Uses cellular/wifi to upload data to cloud-based reporting. . Uses background services of iOS to keep track of each cleaning cycle.
Screenshots
Verdict
The clearest difference is rating: UVDI at 3.7 against Spok Mobile's 1.6. UVDI also leads on monetization model (free vs subscription) and update cadence (weekly vs every 4 months). Spok Mobile's advantage is ratings volume (144 vs 3) and review sentiment (10% vs 0%). 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.
UVDI holds the better App Store score, 3.7 against 1.6. That said, the two scores are not equally well evidenced: Spok Mobile has 144 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 10% of Spok Mobile's written reviews are positive against 0% of UVDI's, so the app with the better star average is not the one people write more warmly about.
Spok Mobile ships an update every 4 months, UVDI weekly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Spok Mobile | UVDI |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (144 ratings) | 3.7 (3 ratings) — better |
| Positive reviews | 10.4% of reviews — better | 0.0% of reviews |
| Number of ratings | 144 — better | 3 |
| Update frequency | Every 4 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 12.4 — better |
| Further details — not scored | ||
| Size | 39 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Spok, Inc. | ULTRAVIOLET DEVICES INC. |
Customer experience
Spok Mobile
UVDI
Bugs and requests
Spok Mobile
Reported bugs
24 issues- App crashes on startup or when opening messages
- Push notifications fail to deliver unless app is open
- Audio settings revert to high volume automatically
- Status switcher disappeared after iOS updates
- Alerts continue after message is opened
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- Messages arrive hours or days late
- Null messages received with no information
- App logs out unexpectedly
- Badges show unread pages but app won't load them
- Registration errors during setup
- Login timeouts and unresponsive authentication
- Dark mode makes text unreadable
- Incompatible with iOS low battery mode
- Phone number links require multiple taps to work
- App breaks with iOS updates
- Messages disappear from history quickly
- Confirm receipt system broken on iOS
- App freezes during update process
- Incompatible with VPN connections
- CarPlay compatibility issues
- Notifications don't work with Focus mode enabled
- Message body doesn't display in notifications
- Slow app startup and message loading
- Pages received out of order or with wrong timestamps
Requested features
20 requests- Apple Watch support with message preview
- Customizable alert tones and volume control
- Ability to mute/silence pager independently from phone
- Copy and paste functionality within messages
- Search function for messages
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- Better message threading and group messaging
- On-call directory integration
- Character count display before sending
- Repeat notification alerts until acknowledged
- Message preview in notifications and lock screen
- Delete all messages button
- Better dark mode support
- Improved Focus mode integration
- Vibrate-only alert option
- Custom ringtone selection from iTunes store
- Message templates/canned responses
- Improved favorites list
- Better message history retention
- Multimedia support expansion
- One-time alert option instead of multiple alerts
UVDI
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Spok Mobile
No in-app purchases
UVDI
No in-app purchases
