GroupFlow vs Lumo AI by Proton
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GroupFlow
This platform streamlines management for member-based organizations and clubs. It offers tools for member profiles, event scheduling, online payments, group communication, and a dedicated website. Designed for in-person communities, it keeps leaders and members connected.
- Member management with customizable profiles
- Event scheduling with RSVPs and ticket sales
- Online payments for dues and events
- Group messaging and announcements
- Dedicated organization website
- Mobile app for members
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GroupFlow is the all-in-one platform for member and event-based clubs and in-person organizations. If you run a hobby club, social group, professional association, or community organization, GroupFlow helps you manage everything in one place: • Member management with customizable profiles • Event scheduling with RSVPs and ticket sales • Online payments for dues and events • Group messaging and announcements • A dedicated website for your organization • A mobile app your members can use to stay connected Leaders can launch their own GroupFlow site and invite members to join. Members can access their group’s events, directory, and messages from the app. Built for private, interest-based communities that meet in person.
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
Screenshots
Verdict
The clearest difference is rating: GroupFlow at 5.0 against Lumo AI by Proton's 3.9. GroupFlow also leads on in-app purchases (none vs 2) and iOS requirement (15.1 vs 17.6). Lumo AI by Proton's advantage is ratings volume (557 vs 2) and update cadence (every 11 days vs monthly). On price, ads 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. Lumo AI by Proton sells 2 in-app purchases, starting at $12.99 per month. GroupFlow asks for nothing beyond the download.
GroupFlow holds the better App Store score, 5.0 against 3.9. 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.
GroupFlow ships an update monthly, Lumo AI by Proton every 11 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | GroupFlow | Lumo AI by Proton |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 3.9 (557 ratings) |
| Positive reviews | — | 45.9% of reviews |
| Number of ratings | 2 | 557 — better |
| Update frequency | Monthly | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 38 MB | 103 MB |
| Age rating | 4+ | 4+ |
| Developer | Moxley Data Inc | Proton AG |
Customer experience
GroupFlow
Lumo AI by Proton
Bugs and requests
GroupFlow
Not enough reviews yet to summarise bugs or 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
In-app purchases
GroupFlow
No in-app purchases
Lumo AI by Proton
- Lumo Plus (1 month)$12.991 Month
- Lumo Plus (12 months)$119.991 Year
Questions
Is GroupFlow free?
Is Lumo AI by Proton free?
Which has better reviews, GroupFlow or Lumo AI by Proton?
Do GroupFlow or Lumo AI by Proton have ads?
Which is updated more often, GroupFlow or Lumo AI by Proton?
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