Digivoice Mobile vs Rhombus Key
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Digivoice Mobile
This business communication tool offers a SIP softphone with HD voice and push notification support. It allows for free calling between app users, enhancing team collaboration.
- SIP softphone functionality
- Push notifications
- HD voice quality
- Free calling between users
- Digital voice service
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Digivoice's accompanying softphone to the Digivoice platform. A SIP softphone app that supports push notifications, HD voice, and more! • Free calling between app users
Rhombus Key
Securely unlock doors with your smartphone, eliminating the need for physical keys or badges. Enjoy fast, seamless access to buildings and save your most-used doors for quick navigation. Manage access across multiple locations with a single login.
- Secure mobile credentials
- Wave to unlock functionality
- Save favorite doors
- Multi-location access
- Centralized building management integration
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Wave Hello to Rhombus Key – to securely unlock doors straight from your Smartphone. Say goodbye to physical keys, keycards, and badges by using Rhombus Key for: - Fast and secure building access with mobile credentials. - Seamless badging by simply waving to unlock or by using your phone. - Quick navigation to your most-used doors by saving your favorites. - Multi-location access across all your doors with one login. This app is compatible with Rhombus Access Control – a modern approach to building management with centralized visibility and control, seamless remote access, and unlimited scalability.
Screenshots
Verdict
The clearest difference is update cadence: Rhombus Key at every 3 weeks against Digivoice Mobile's every 5 months. On price, rating, review sentiment and ratings volume 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.
Digivoice Mobile holds the better App Store score, 4.4 against 4.2. Both are backed by a comparable volume of ratings — 162 and 73 respectively. Written reviews split almost evenly too, at 75% and 74% positive.
Digivoice Mobile ships an update every 5 months, Rhombus Key every 3 weeks. The most recent releases landed on November 11, 2026 and November 12, 2026 respectively.
| Parameter | Digivoice Mobile | Rhombus Key |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (162 ratings) — better | 4.2 (73 ratings) |
| Positive reviews | 75.0% of reviews — better | 74.1% of reviews |
| Number of ratings | 162 — better | 73 |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 114 MB | 22 MB |
| Age rating | 17+ | 4+ |
| Developer | Digivoice LLC | Rhombus Systems, Inc. |
Customer experience
Digivoice Mobile
Rhombus Key
Bugs and requests
Digivoice Mobile
Not enough reviews yet to summarise bugs or requests.
Rhombus Key
Reported bugs
7 issues- App constantly bugs about having location on at all times
- Issues with giving access to non-admin accounts
- System will work working randomly
- App neither sends the magic code to login nor has a password reset feature
- Unable to activate account or log in
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- Barely works and destroys battery
- App checks location ALWAYS
Requested features
3 requests- Allow app to work with location settings set to While using the app
- Improve basic features and user experience
- Fix login and password reset issues
In-app purchases
Digivoice Mobile
No in-app purchases
Rhombus Key
No in-app purchases
Questions
Is Digivoice Mobile free?
Is Rhombus Key free?
Which has better reviews, Digivoice Mobile or Rhombus Key?
Do Digivoice Mobile or Rhombus Key have ads?
Which is updated more often, Digivoice Mobile or Rhombus Key?
Other comparisons
