Orbit vs Lumen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Orbit
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Meet Orbit — the assistant that keeps track of what you said you'd do. Orbit turns your calendar, reminders, notes, and messages into a single clear picture of your commitments. Your data stays on your device by default, and nothing is ever sent anywhere until you explicitly approve it. YOUR MORNING, MASTERED Every day starts with a personalized briefing. Orbit surfaces your meetings, reminders, and the commitments you've saved — summarized and ready to act on. No app-hopping, no information overload. Just what matters, right when you need it. ASK ANYTHING Orbit's conversational assistant understands the way you think and talk. Ask "What's on my plate today?" or "Do I have anything free on Friday afternoon?" Orbit connects the dots across your schedule, reminders, and personal memory to give you real answers. Before Orbit sends anything to an AI provider, it shows you exactly what will be sent and asks for your permission. You can revoke that permission at any time in Settings. CAPTURE ANY COMMITMENT Paste an email, a message thread, or a note, and Orbit pulls out the tasks, dates, and promises hiding inside it. Turn any of them into a real Calendar event or Reminder with one tap — you approve every action before it happens. INBOX TRIAGE (PREVIEW) Orbit includes an inbox triage workspace that sorts messages into Needs Reply, Commitments, Newsletters, and Noise. In this version it runs on clearly labeled sample messages so you can try the workflow. Direct Gmail and Outlook sync is planned for a future update. This feature is free for everyone. A MEMORY THAT KEEPS UP WITH YOU The Personal Memory Store keeps the commitments and context that matter to you, stored on your device. Search it, act on it, or delete any part of it whenever you want. PRIVACY YOU CAN INSPECT Your contacts are never uploaded to any server — Orbit reads them on-device only. The Privacy Dashboard shows you exactly what Orbit has stored and where it came from. The Undo Center lets you reverse actions Orbit took, including removing events and reminders it created. One tap erases everything Orbit knows and returns the app to a clean slate. BUILT FOR REAL LIFE Voice input lets you talk to Orbit naturally, hands-free. Native integration with Apple Calendar, Reminders, and Contacts means Orbit fits into your existing workflow without friction. PREMIUM SUBSCRIPTION Orbit is free to use, including inbox triage and 5 AI questions per day. Orbit Premium (Monthly or Yearly auto-renewable subscription) unlocks unlimited AI questions, a smarter AI model, the daily briefing, and unlimited importing. Payment will be charged to your Apple ID at confirmation of purchase. Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://xxxjayxxx.com/PrivacyPolicy Your day is waiting. Download Orbit and take control.
Lumen
This app acts as a browser that remembers what you read, building a personal knowledge base from engaged pages. It allows you to ask questions in plain English about your reading history, with answers generated by an on-device AI. All your data remains private and offline.
- On-device AI knowledge base
- Plain English questioning
- Automatic content organization
- Private and offline browsing
- Tracker blocking
- Source citation for answers
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Lumen is a browser with a memory. Most browsers forget the second you close a tab. Lumen does not. As you read, it quietly builds a personal knowledge base from the pages you actually engage with, and then lets you ask questions about any of it in plain English, answered by an AI model that runs entirely on your device. Nothing you read, nothing you ask, and nothing Lumen learns about you ever leaves your phone. WHAT IT DOES Lumen reads along with you. It distinguishes between pages you genuinely read and pages you opened and swiped away, and it extracts the meaningful content from the ones that stuck. That content gets summarized, embedded, and organized into a searchable knowledge base, all on-device. Later, when you want to find something, you do not have to dig through history or remember which tab it was in. You just ask: "What did I read about sourdough starters last week?" "Summarize that article about the new M-series chips." "What were the main arguments in that piece I read on Tuesday?" Every answer cites the pages it came from, so you can jump straight back to the source. AUTO-ORGANIZED Your reading sorts itself into a clean hierarchy: Topics, Websites, and Pages. Each level carries its own AI-generated summary, so you can scan what you have been learning at a glance. No tagging, no folders to maintain. Lumen handles it in the background. PRIVATE BY DEFAULT Lumen has no server. There is quite literally nothing to send. On-device LLM: a quantized Llama 3.2 model runs locally through Apple's MLX framework. Local SQLite storage: your reading history, summaries, and embeddings never leave the device. Built-in privacy: tracker blocking, third-party cookie blocking, and fingerprint resistance. Secure: HTTPS-only by default, with mixed-content blocking. No strings attached: no accounts, no sync, no telemetry, no ads. The AI weights download once on first launch (~700 MB). After that, everything works fully offline: browsing, reading, asking, answering. BUILT FOR iOS Lumen is written from scratch in Swift and SwiftUI, designed specifically for iPhone and iPad. It uses Apple's own frameworks wherever it can: NLEmbedding for semantic search, WKWebView for browsing, SQLite with FTS5 for full-text queries, and MLX Swift for on-device inference. Zero third-party trackers. Zero external services. WHO IT'S FOR While most browsers treat the web as a feed to scroll past, Lumen treats it as a library worth keeping. If you read a lot online and constantly think "I know I saw something about this recently but I cannot find it again," Lumen is for you. Researchers, students, writers, developers, and lifelong learners. You do not need to change how you browse. Browse normally, and Lumen takes care of the rest. REQUIREMENTS iOS 18 or later. iPhone with Apple Silicon recommended for the fastest on-device AI performance.
Screenshots
Verdict
The clearest difference is in-app purchases: Lumen at none against Orbit's 2. On price, update cadence, 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. Orbit sells 2 in-app purchases, starting at $4.99 per month. Lumen asks for nothing beyond the download.
Orbit ships an update every 3 weeks, Lumen every 2 weeks. The most recent releases landed on October 11, 2026 and October 14, 2026 respectively.
| Parameter | Orbit | Lumen |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 | 18.0 |
| Further details — not scored | ||
| Size | 12 MB | 28 MB |
| Age rating | 4+ | 17+ |
| Developer | XxxJAYxxX LLC | Daniel Kosukhin |
In-app purchases
Orbit
- Orbit Premium Monthly / Yearly$4.991 Month
- Orbit Premium Monthly / Yearly$29.991 Year
Lumen
No in-app purchases









