DG Crews vs Libellus One
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DG Crews
This app provides essential dangerous goods information for air transport professionals. It offers quick access to regulations, handling requirements, and emergency procedures for safe and compliant operations.
- Classification & Label Reference
- Lithium Batteries Guidance
- Segregation Rules
- Drill Code Search
- Emergency Checklists
- Dangerous Goods Permitted on Flights
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DG Crews 2026 is a professional Dangerous Goods operational reference for air transport, designed for flight crews, loadmasters, cabin crews, warehouse personnel, and cargo staff. It provides fast access to IATA DGR and ICAO Technical Instructions, including lithium batteries, labels, segregation, and handling requirements. Developed by an airline pilot with real-world operational experience, DG Crews focuses on speed, clarity, and regulatory accuracy for daily aviation operations. The app provides quick access to DG classifications, labels, segregation rules, drill codes, and emergency procedures, supporting safe and compliant air transportation. Operational Features Classification & Label Reference Select any Dangerous Goods class or division to instantly access: • Hazard labels and meanings • Handling labels • Loading and operational considerations All information is organized for fast consultation in operational environments. Lithium Batteries Clear guidance on lithium batteries as cargo and as baggage, covering one of the most critical and frequently updated areas of Dangerous Goods transport. Segregation Rules Quickly consult: • Segregation rules between Dangerous Goods • Segregation rules between Dangerous Goods and Special Cargo Designed to support safe loading and stowage decisions. Dangerous Goods Abbreviations Decode commonly used Dangerous Goods abbreviations to improve operational understanding and crew communication. Drill Code Search Search by Proper Shipping Name or UN number and instantly retrieve the applicable drill code. The database includes over 3,000 Dangerous Goods entries. Emergency Checklists Immediate access to: • In-flight Dangerous Goods emergency checklists • Ground spill procedures • Fire checklists for portable electronic devices Clear, concise, and usable when time matters. Dangerous Goods Permitted on Flights Access: • A direct web reference covering items permitted onboard aircraft • An in-app table with 100+ articles related to Dangerous Goods permitted on flights Subscription DG Crews 2026 is available through an annual in-app subscription, providing continued access to updates and reference content. Subscription Details • Price: $12.99 per year • Renewal: Automatically renews annually • Payment: Charged to your iTunes account at confirmation of purchase • Management: Subscriptions can be managed or auto-renewal disabled in iTunes Account Settings By subscribing, you agree to the Privacy Policy and Terms of Service. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Libellus One
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Bring your reading and your thinking together. Libellus One combines a local document library, PDF search and Workpapers on iPad and iPhone. BUILD YOUR LIBRARY Import files or whole folders with subfolders. Connect to iCloud, WebDAV or a web portal, or sign in to Google Drive to browse and download selected files and folders. Keep local copies organized and available offline. Give a document a Custom Name while retaining its original file name. FIND NAMES AND PASSAGES Search document names, custom names and readable PDF text. Search your whole Library or selected folders. Open a matching passage and continue searching inside the PDF. READ AND TAKE NOTES Use one compact toolbar across PDFs and Workpapers. Write with Apple Pencil or enable finger drawing, highlight, erase and add straight or serrated underlines. Place editable text boxes with font, size and color controls. Move or resize your text and return to navigation with the Hand tool. Edits save automatically, with session Undo and Redo. KEEP THE SOURCE Take a Note turns a selected passage into a source-linked Workpaper card. Tap its reference to return to the original. Readable text in PDF, TXT, DOCX and XLSX is supported. MAKE ROOM TO THINK Use Double Screen for two documents or a local video beside your reading. Arrange Workpapers beside or below documents. Adjust dividers, zoom, and move your toolbar to any corner. Navigate with thumbnails, outlines and bookmarks. CHOOSE YOUR WORKSPACE Place navigation on the left, right or bottom, with icons or labels. Keep navigation and document tabs visible or let them appear automatically when needed. Choose horizontal or vertical page turning and continuous or page-by-page reading. Reading mode adds a display-only warm paper tint. An English User Guide is included offline. Cloud connections require your own authorized account and internet access. Google Drive downloads are local copies, not automatic remote synchronization; provider access rules apply. Downloaded documents and Workpapers remain available on your device. PDF text search requires readable text; scanned or protected files may not be searchable. Apple Pencil requires a compatible iPad.
Screenshots
Verdict
The clearest difference is price: DG Crews at Free against Libellus One's $4.99. DG Crews also leads on iOS requirement (15.0 vs 18.0). Libellus One's advantage is in-app purchases (none vs 1) and update cadence (every 3 days vs every 5 months). On 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
DG Crews is free to download; Libellus One costs $4.99 up front. DG Crews sells 1 in-app purchase, starting at $12.99 per year. Libellus One asks for nothing beyond the download.
DG Crews ships an update every 5 months, Libellus One every 3 days. The most recent releases landed on November 4, 2026 and November 6, 2026 respectively.
| Parameter | DG Crews | Libellus One |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 37.5% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 5 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 63 MB | 9 MB |
| Age rating | 4+ | 17+ |
| Developer | Pedro Jose Villarroel Cuevas | SERHAN KAYMAKCI |
In-app purchases
DG Crews
- DGCrew Subscription$12.991 Year
Libellus One
No in-app purchases
Questions
Is DG Crews free?
Is Libellus One free?
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