Lumo AI by Proton vs DMR User Database
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lumo AI by Proton
This AI assistant prioritizes your privacy, offering help with productivity, curiosity, and staying informed. Developed by the team behind trusted encrypted services, it ensures your data remains secure.
- Privacy-first AI assistant
- Boost productivity
- Satisfy curiosity
- Stay informed
- Secure data handling
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Lumo is a zero-access encrypted AI assistant that keeps every conversation private. Your data is never logged, shared, or used to train models. Your chats are yours, and yours alone. Built by Proton, the privacy brand trusted by over 100 million people and the team behind Proton Mail, VPN, Drive, and Pass. THOUGHTFUL HELP FOR ANY TASK Lumo handles everything from quick questions to more complex work. Choose Fast for quick answers or Thinking for multi-step reasoning. FAST, POWERFUL WEB SEARCH Get precise, real-time answers in seconds. Lumo cites live sources so you can verify facts, dig deeper, and stay current on news, events, financial data, and more. CREATE AND REFINE IMAGES AND FILES Work with images and files just by telling Lumo what you need, from generating and editing images to analyzing documents. Connect your Proton Drive account for seamless access to stored files. AI THAT EVOLVES OVER TIME Lumo gets better every time you use it. Memory retains context and preferences across sessions, and you can set tones and styles to get the exact Lumo experience you want. STAY PRODUCTIVE AND ORGANIZED Projects give you dedicated encrypted spaces for tasks that span multiple chats, files, and instructions, while Custom Lumos let you create assistants tailored for specific tasks. Switch between light and dark modes for a more comfortable experience throughout the day. GHOST MODE For conversations where you want maximum privacy, choose Ghost Mode. Chats are instantly deleted once you close them for greater peace of mind. PRIVACY YOU CAN VERIFY Lumo is founded on zero-access encryption with no server-side chat logs, and never uses your data for profit or model training. Like all Proton products, Lumo is built and hosted in Europe and is fully open-source. Lumo helps you stay productive, curious, and informed — without ever compromising your privacy. Start a confidential chat for free today. For more information, visit our website: https://lumo.proton.me/about Terms of service: https://lumo.proton.me/legal/terms Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Our open-source code base: https://github.com/ProtonLumo/ios-lumo
DMR User Database
This app serves as a comprehensive digital phonebook for the Digital Mobile Radio (DMR) community. It allows users to quickly search for Radio IDs, Callsigns, and other user details across multiple integrated databases. Ideal for ham radio operators, it facilitates connections and exploration within the digital radio world.
- Comprehensive search by ID, Callsign, Name, or Location
- Integrates multiple DMR databases
- View users per country
- Built-in logbook for radio contacts
- Database export for specific devices
- Interactive maps for repeaters
- Offline functionality
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As a Digital Mobile Radio (DMR) enthusiast, you understand the importance of having easy access to detailed contact information about other users in the network. The DMR User Database app is here to provide you with a comprehensive digital phonebook for the DMR community, making it easier to find Radio IDs, Callsigns and user details in just a few taps. Developed by PD2EMC, this app is designed specifically for Hamradio operators, with powerful features that help you connect, communicate, and stay informed in the world of digital radio. What is the DMR User Database App? The DMR User Database App acts as a digital phonebook, giving you quick access to contact details of thousands of DMR users worldwide. It integrates multiple databases such as RadioID, NXDN, Hamvoip, HamshackHotline, Dapnet, and Repeaters Database, allowing you to search for users by their Radio ID (Extension), Callsign, Name or even location. Whether you are looking for a new contact, repeaters in your area, or exploring the world of digital radio, this app has you covered. Key Features of DMR User Database App: Comprehensive Search Options: Search for DMR users in RadioID, NXDN, Hamvoip, HamshackHotline, Dapnet, and Repeaters Database by Callsign, Radio ID (Extension), Name, Location (City, State or Country) or lazy search thru all databases by Callsign. Users Per Country: View the number of users in each country and explore the global reach of the DMR network. Logbook: Keep track of your radio contacts and activities with the built-in logbook feature, designed to log your callsigns, timestamps, and notes. Database Export: Export databases for devices like Anytone and Voip Phones (available on Windows/macOS). Fox Hunting: Engage in exciting fox hunting activities by locating the first fox in the app. Interactive Maps: Discover nearby repeaters and hackerspaces with interactive maps. Offline Functionality: Enjoy full access to the user databases and most features even when you are offline, making it ideal for areas with limited connectivity. Why you should download the DMR User Database App? The DMR User Database app is your go-to tool for connecting with the global DMR community. Whether you're a new user looking for contacts or an experienced operator searching for repeaters or DMR IDs, this app makes it easy to find exactly what you need. With interactive maps, offline functionality and the ability to log your radio activity, you can stay connected to the DMR network and explore new radio experiences. Download the DMR User Database app today and keep the global DMR community at your fingertips!
Screenshots
Verdict
The clearest difference is rating: Lumo AI by Proton at 3.9 against DMR User Database's 2.0. Lumo AI by Proton also leads on update cadence (every 11 days vs every 3 months) and ratings volume (557 vs 2). DMR User Database's advantage is in-app purchases (none vs 2) and device support (4 vs 2). On price and ads 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. Lumo AI by Proton sells 2 in-app purchases, starting at $12.99 per month. DMR User Database asks for nothing beyond the download.
Lumo AI by Proton holds the better App Store score, 3.9 against 2.0. That said, the two scores are not equally well evidenced: Lumo AI by Proton has 557 ratings behind it against 2, so its average is the more settled of the two.
Lumo AI by Proton ships an update every 11 days, DMR User Database every 3 months. The most recent releases landed on October 30, 2026 and October 21, 2026 respectively.
| Parameter | Lumo AI by Proton | DMR User Database |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (557 ratings) — better | 2.0 (2 ratings) |
| Positive reviews | 45.9% of reviews | — |
| Number of ratings | 557 — better | 2 |
| Update frequency | Every 11 days — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 103 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Proton AG | Andreas Krenz |
Customer experience
Lumo AI by Proton
DMR User Database
Bugs and requests
Lumo AI by Proton
Reported bugs
2 issues- Slow sign-in page
- Lack of real-time data access
Requested features
5 requests- Dynamic Type support for adjustable font size
- Secure access to Proton Drive files
- Ghost mode to ensure no chat history is saved
- Intuitive history clearing option
- App mode
DMR User Database
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Lumo AI by Proton
- Lumo Plus (1 month)$12.991 Month
- Lumo Plus (12 months)$119.991 Year
DMR User Database
No in-app purchases
Questions
Is Lumo AI by Proton free?
Is DMR User Database free?
Which has better reviews, Lumo AI by Proton or DMR User Database?
Do Lumo AI by Proton or DMR User Database have ads?
Which is updated more often, Lumo AI by Proton or DMR User Database?
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