Comparison

VR Models Manager vs Good PDF Notebook

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

VR Models Manager

Features
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“VR Models Manager" turns your device into a three-dimensional model viewer in virtual reality (on the screen of the device or using a VR VISOR) for the design, study, simulation and detailed observation of 3D models. Build one or more 3D models (with textures, using for example Blender, FingerCAD, Finger3D, etc...) and visualize them in virtual reality: use the screen of the device or use any VR VISOR to visualize the 3D model in CINEMA 3D mode, with the perception of the depth of the 3D model. Build a fantasy world: - populate the scene with one or more 3D models built by you - insert a background - insert the sky Interacting manually with the 3D model you can: - rotate the camera around the 3D model (by dragging a finger on the screen) -> rotate the 3D model around its vertical or lateral axes - move the camera to the right or left (by dragging two fingers on the screen) -> move left / right / up / down the 3D model - move the camera forward or backward (by dragging three fingers vertically on the screen) -> move the 3D model closer and further away - rotate the camera around its horizontal axis (ROLL - rotating two fingers on the screen) -> rotate the 3D model around its front axis - change the camera's FOV (field of view) (pinching the screen with two fingers) - restore the initial settings of the camera (double touch with a finger) Background of the scene and landscape: - you can add a background/sky to the scene (horizon) by inserting for example a cylinder or a cube (with texture) in the scene, with radius/side large enough to contain the scene (the texture of the cylinder/cube will be your background/sky) - you can build models of mountains, trees, rivers, lakes, streams, etc... and insert them in the scene to enrich the landscape - you can add houses, cars, motorcycles, people, birds, etc... - you can add to the scene any object you want, designed by You using 3D modelers (or purchased on the Internet: all formats compatible with SceneKit can be used such as OBJ (with MTL and TEXTURE with relative path), SCN, STL, etc...) 3D model import: - File sharing (iTunes) - Open In Useful for example: - for retailers, to show the products on sale (3D catalog: show real products not yet present in the shop ex. eyeglasses, ornaments, favors, chandeliers, etc...) - to better visualize the model before 3D printing (the displayed model can be directly printed using 3D printers and specific printing software) - for architecture ex. observing / studying / showing in detail a room / apartment / building not yet existing - for engineering ex. design houses and exploring them even before starting construction work - as a creative game (build, photograph or film fantasy worlds created by you) - etc… UNIVERSAL APP: - You pay only once and run on all your devices

About

Good PDF Notebook

Create beautiful notes, sketch ideas, and annotate PDFs with advanced ink tools and AI assistance. Convert handwriting to text, scan documents, and organize files seamlessly across cloud services. Enjoy a realistic ink-on-paper feel with stylus support.

Highlights
  • Advanced ink tools for writing and sketching
  • AI Assistant for summarization and translation
  • Handwritten notes to editable text conversion
  • Document scanning with automatic frame recognition
  • Cloud service integration for file management
  • Full-text search for PDFs
  • PDF reader with highlighting and read aloud
Features
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Pencil Notepad is a new, modern, powerful yet easy to use note-taking, draw and PDF markup app that allows you to create useful and beautiful notes, edit and annotate PDF documents and books and sketch your ideas quickly, and easily using your Apple Pencil, Stylus or even finger! It lets you feel the ink and paper thanks to the intuitive, fast and pixel-perfect precise control of your Pencil with useful tilt and pressure sensitivity, and support for palm rejection. Pencil Notepad means also smart notes: it uses machine learning and artificial intelligence algorithms to draw perfect shapes, convert your handwritten notes to text using Scribble, scan documents with automatic page frame recognition, search by text your photo library and insert them on your notes and other innovative smart features. Main features: + Use advanced 7 Ink tools to write and sketch: Marker, Pen, Pencil, Monoline, FountainPen, Watercolor and Crayon. + Floating bar to choose from 8 customizable colors and stroke width. + Open multiples documents side by side using multi-windows and multitask. + AI Assistant: What’s that word? Allow the AI Assistant to explain. Need a brief? Ask it to summarize. Language barrier? Request for a translation. Your assistant is ready to lend a hand. Chat with the AI Assistant about your document! + Convert handwritten text into editable text and share it. (No Internet needed!) + Convert locally (No Internet needed!) on your device all kind of documents like Excel, PowerPoint, JPEG& PNG images, etc. to PDF and annotate them. + Lets you feel the ink and paper thanks to the intuitive, fast and pixel-perfect precise control of your Apple Pencil with useful tilt and pressure sensitivity, and support for palm rejection. + Powerful document browser integrated with Files app and any cloud services like iCloud, Dropbox, Box, GDrive, oneDrive, etc. to import, export and sync your files. + Full-text search makes finding PDFs files much easier and faster, so you don’t have to waste time opening folder after folder trying to find that one document you need. + Powerful PDF reader with search, bookmarks, highlighting and voice read aloud. + You can use your iPad and Apple Pencil (and other supported styluses) to write by hand in any text field in the PDF or in your own rich text boxes, like the search field in Safari or a text field in Mail. All handwriting and conversion to text happens on your iPad, keeping your writing private and secure. + Reader mode interface for distraction free moments. + Dark mode support in documents. Ready for aviation use. + Paper background guides (squared, lined, coloured, etc.) for your handwriting and sketching. + Use the iOS camera to scan documents then edit and annotate them. + User Interface available in multiple languages including Right to Left like Arabic and other like English, Japanese, Chinese Simplified, French, Italian, German, Spanish, Portuguese, Russian, etc. Privacy Policy http://www.noteswriter.com/Kairoos_Privacy_Policy.html EULA https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ This app requires users to have a subscription to unlock all the features after a 3-day risk-free trial.

Screenshots

VR Models Manager4 screens
Good PDF Notebook4 screens

Verdict

The call

The clearest difference is price: Good PDF Notebook at Free against VR Models Manager's $1.99. Good PDF Notebook also leads on update cadence (every 8 days vs every 44 months). VR Models Manager's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Good PDF Notebook is free to download; VR Models Manager costs $1.99 up front. Good PDF Notebook sells 2 in-app purchases, starting at $2.99 per month. VR Models Manager asks for nothing beyond the download.

UpkeepUpdate frequency

VR Models Manager ships an update every 44 months, Good PDF Notebook every 8 days. The most recent releases landed on September 8, 2026 and September 25, 2026 respectively.

Scorecard3 real differences · 7 level
VR Models Manager versus Good PDF Notebook: the parameters behind the verdict, then further details
ParameterVR Models ManagerGood PDF Notebook
Price$1.99Free — better
Rating—3.7 (3 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 44 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.616.4 — better
Further details — not scored
Size1 MB291 MB
Age rating4+4+
DeveloperGianluca NataliniKairoos Solutions SL

In-app purchases

None

VR Models Manager

No in-app purchases

2 purchases

Good PDF Notebook

Subscriptions1
  • Unlock All and AI Assistant3 Days trial$2.991 Month
One-time1
  • GoodPencil Upgrade$3.99

Questions

Is VR Models Manager free?
VR Models Manager costs $1.99, with no in-app purchases.
Is Good PDF Notebook free?
Good PDF Notebook is free to download, with in-app purchases available.
Do VR Models Manager or Good PDF Notebook have ads?
Neither VR Models Manager nor Good PDF Notebook shows ads.
Which is updated more often, VR Models Manager or Good PDF Notebook?
VR Models Manager ships an update every 44 months, and Good PDF Notebook every 8 days. Most recently, VR Models Manager was updated on September 8, 2026 and Good PDF Notebook on September 25, 2026.

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