Swoopbox vs Lumen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Swoopbox
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Have you ever saved a link, image, or file for later, then had trouble finding it again? Save it instantly with one tap of the share button, then open it again right when you need it. Swoopbox helps you quickly save links, text, images, and files, then organize them so they are easy to find again. Web pages can be saved for offline access, so you can revisit them without an internet connection. Supported files such as images and PDFs can also be opened right inside the app. You can now add saved resources to the custom keyboard and use them directly in input fields across other apps. • Key Features 1. Save Content Fast - Save links, text, images, and files from anywhere with one tap of the share button - Add resources easily without switching apps - Choose a box while saving, or create a new box to organize it right away 2. Use Items from the Custom Keyboard - Add saved links, text, images, and files to the Swoopbox keyboard - Paste the resource you need directly into input fields in other websites or apps - Use filters by resource type and pinned items to reach favorites faster 3. Organize for Easy Access - Manage important resources with boxes, favorites, and pinned items - Find the link, image, or file you need quickly with search and filters - Add notes to each resource so you remember why you saved it 4. Save Pages and Files for Offline Viewing - Save web pages as they are (WebArchive / full-page capture) - Reopen saved pages without an internet connection - View supported files such as images and PDFs directly in the app 5. Recommendations and Reminders - Rediscover recent, popular, and recommended resources from Home - Get unread-resource alerts and daily or weekly summaries 6. Continue on Every Device - Sign in to automatically sync links, images, files, boxes, notes, and saved pages - Continue viewing your saved resources on any device • Contact Us - Email: millenniumrhino@gmail.com • Legal Terms of Use: https://www.swoopbox.com/terms Privacy Policy: https://www.swoopbox.com/privacy
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 Swoopbox's 2. Lumen also leads on ads (none vs shown). Swoopbox's advantage is update cadence (every 3 days vs every 2 weeks) and device support (3 vs 1). On price 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. Swoopbox sells 2 in-app purchases, starting at $1.99 per month. Lumen asks for nothing beyond the download.
Swoopbox ships an update every 3 days, Lumen every 2 weeks. The most recent releases landed on October 19, 2026 and October 14, 2026 respectively.
| Parameter | Swoopbox | 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 days — better | Every 2 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 117 MB | 28 MB |
| Age rating | 4+ | 17+ |
| Developer | Min Jae Lee | Daniel Kosukhin |
In-app purchases
Swoopbox
- Swoopbox Pro Monthly1 Month trial$1.991 Month
- Swoopbox Pro Yearly$19.991 Year
Lumen
No in-app purchases







