Luminary AI vs Fabius
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Luminary AI
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Ask anything. Follow your curiosity. See what you discover. Luminary is an AI-powered Exploration and Understanding Engine where you can ask questions, explore concepts, analyze documents and images, and interact with information in one connected experience. Ask a question. Open a document. Analyze an image. Explore a concept. Instead of simply generating answers, Luminary transforms information into an interactive experience with explanations, images, videos, trusted sources, quizzes, and instantly explorable concepts, helping you understand information from every angle. Whether you're researching a purchase, following current events, comparing products, planning a trip, learning something new, analyzing a document, exploring a new idea, solving a problem, making a decision, or simply satisfying your curiosity, Luminary helps you discover more and understand better. Instead of jumping between search engines, AI chatbots, articles, videos, and countless browser tabs, Luminary brings everything together into one connected experience. With Luminary, you can: • Ask questions about anything. • Explore any concept with a single tap. • Understand complex topics through clear, interactive explanations. • Explore information from different angles and follow wherever your curiosity takes you. • Discover related ideas, connections, and new directions to explore. • Go from a simple question to deeper exploration, all in one connected experience. • Gain deeper insights into information, ideas, connections, and how you think and explore. • Explore through images, videos, trusted sources, and contextual analysis. • Upload PDFs, Word documents, presentations, images, and screenshots to explore and understand them. • Highlight any word, sentence, or paragraph to instantly analyze it in context. • Follow current events with summaries, timelines, context, and multiple perspectives. • Compare products, places, technologies, ideas, and more. • Reinforce your understanding with contextual, AI-generated quizzes. • Continue your conversations across your devices. Explore more. Understand better. Keep discovering. Website: https://useluminary.ai Terms of Use: https://useluminary.ai/terms Privacy Policy: https://useluminary.ai/privacy
Fabius
Design personalized AI agents with unique personalities, instructions, and tools. Upload documents and images to provide agents with specific knowledge for grounded answers. Collaborate with others in shared workspaces and connect to channels like Telegram.
- Custom AI agent design
- Personalized agent personalities
- Document and image knowledge integration
- Team collaboration with roles
- Telegram bot integration
- Private by design, no tracking
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Fabius lets you create your own AI agents and put them to work. DESIGN YOUR AGENTS Give each agent its own personality, instructions, model, and tools. A research assistant, a writing partner, a support bot — you decide what each one knows and what it is allowed to do. BRING YOUR KNOWLEDGE Upload documents and images, and your agents use them to give grounded, specific answers. WORK AS A TEAM Invite people to your workspace, give them a role, and choose who pays. CONNECT YOUR CHANNELS Link a Telegram bot and your agent answers there too. PRIVATE BY DESIGN No ads, no analytics, no tracking. Your conversations belong to you, and you can delete your account — and everything with it — anytime, right from Settings.
Screenshots
Verdict
The clearest difference is in-app purchases: Luminary AI at none against Fabius's 3. Fabius's advantage is update cadence (every 9 days vs every 3 weeks) and iOS requirement (16.4 vs 26.0). 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. Fabius sells 3 one-off in-app purchases. Luminary AI asks for nothing beyond the download.
Luminary AI ships an update every 3 weeks, Fabius every 9 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | Luminary AI | Fabius |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 85 MB | 69 MB |
| Age rating | 12+ | 12+ |
| Developer | Luminary AI | Subhi Mukbel |
In-app purchases
Luminary AI
No in-app purchases
Fabius
- 1,400 Credits$4.99
- 6,200 Credits$19.99
- 17,000 Credits$49.99









