RXO Chat vs DDadmin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RXO Chat
Connect your Ruby Calculator hardware to an iPhone or iPad. Exchange messages via Bluetooth or internet, and transfer notes for storage with the Ultimate Edition. Utilizes Apple's native Bluetooth Low Energy for seamless connectivity.
- Connect Ruby Calculator hardware
- Message exchange via Bluetooth
- Message exchange via Internet
- Transfer notes for storage
- Utilizes Bluetooth Low Energy
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RXO Chat allows users of the Ruby Calculator to connect their hardware to an Apple iPhone or iPad. Once connected, users will be able to exchange messages over a Bluetooth or Internet Connection. Additionally, with Ruby Calculator Ultimate Edition the user will be able to transfer up to 300000 words of notes to the calculator for storage. The app utilises Apples native Bluetooth Low Energy peripheral in conjunction with a BLE module on the Ruby Calculator to establish and maintain connectivity.
DDadmin
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DDadmin provides the following functions for the property manager to manage their community more convenient: - Answer Call - Unlock remote - Manage doors & gates - Check unlock events and playback ……
Screenshots
Verdict
The clearest difference is update cadence: RXO Chat at every 2 months against DDadmin's every 3 months. DDadmin's advantage is iOS requirement (12.0 vs 15.6). 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.
RXO Chat ships an update every 2 months, DDadmin every 3 months. The most recent releases landed on October 7, 2026 and September 29, 2026 respectively.
| Parameter | RXO Chat | DDadmin |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (7 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 87 MB |
| Age rating | 17+ | 4+ |
| Developer | Ruby Devices Pty Ltd | Langtao Digital Co., Ltd. |
In-app purchases
RXO Chat
No in-app purchases
DDadmin
No in-app purchases
