PDF Scanner vs Stellar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Scanner
Easily create, edit, and organize PDF documents from photos and scanned pages. Merge, split, compress, and protect your files with passwords. Convert PDFs to JPG images and share your work seamlessly.
- Create PDFs from photos
- Scan paper documents
- Edit and organize PDF pages
- Convert PDF to JPG
- Merge, split, and compress PDFs
- Password protect PDFs
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Turn photos, scans, and documents into professional PDF files with an all-in-one PDF scanner, editor, converter, and document toolkit for iPhone and iPad. Create PDFs from images, scan paper documents, annotate and sign PDFs, merge or split files, organize pages, add page numbers, compress documents, convert PDF pages to images, and protect important files—all without switching between multiple apps. CREATE PDF FROM PHOTOS Convert photos and images into PDF documents in seconds. Select multiple JPG, JPEG, or PNG images and combine them into one PDF. Reorder pages before exporting and customize page size, orientation, margins, and image fit for the result you need. SCAN DOCUMENTS TO PDF Turn your iPhone or iPad into a convenient document scanner. Scan paper documents, receipts, notes, forms, contracts, letters, and other pages using your camera. Automatically crop and enhance scans, apply document filters, arrange pages, and save them as PDF files. ANNOTATE PDF DOCUMENTS Review and mark up PDF files directly in the app. Highlight important content, draw on pages, add text, and use annotation tools and shapes to make notes or mark changes without creating a new document from scratch. SIGN PDF FILES Add signatures directly to PDF documents. Choose a PDF, create or import your signature, position it where needed, and save the signed document for sharing or storage. MERGE PDF FILES Combine multiple PDF documents into a single file. Choose the PDFs you need, arrange them in the correct order, and create one organized document for work, school, forms, reports, or personal records. SPLIT PDF DOCUMENTS Split large PDF files into smaller documents. Select individual pages or page ranges and extract only the pages you need into separate PDF files. ORGANIZE PDF PAGES Take control of every page in your document. Reorder PDF pages with drag and drop, rotate pages, crop unwanted areas, or delete pages you no longer need. ADD PAGE NUMBERS Add clean page numbering to PDF documents. Choose the number format, starting number, font size, and page-number position, including top or bottom placement. PDF TO JPG & IMAGE CONVERTER Convert PDF pages into high-quality JPG images. Export all pages or select a specific page range, adjust image quality, and save the resulting images for easy sharing and reuse. COMPRESS PDF FILES Reduce PDF file size when you need smaller documents for sharing or storage. Preview the estimated output size and choose the compression option that works best for your document. ADD TEXT & WATERMARKS Personalize PDF pages with text and watermarks. Add labels, notes, ownership marks, or other information directly to your documents. PASSWORD PROTECT & UNLOCK PDFs Keep important PDF documents protected. Add password protection to secure a PDF, or unlock a protected PDF when you know the correct password. MANAGE YOUR PDF FILES Keep your documents organized in one place. Quickly find recent files, search your documents, browse PDFs and images, mark favorites, and access the files you use most. PREVIEW, SAVE & SHARE Preview your finished PDF before exporting. Choose a filename and save location, store documents in Files, or share PDFs and images with other apps directly from your iPhone or iPad. ONE PDF TOOLKIT FOR EVERYDAY DOCUMENTS Whether you need to scan a document, create a PDF from photos, edit PDF pages, sign a form, annotate a file, merge documents, split pages, compress a PDF, convert PDF to JPG, reorder pages, or protect a document with a password, everything is available in one PDF toolkit. Download PDF Scanner and handle everyday PDF and document tasks from one place. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Stellar
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Turn focus into a universe. Stellar is a focus timer that rewards your concentration. Every session you complete creates a real celestial object, stars, planets, nebulae and rare cosmic phenomena, that takes its place in a universe that's entirely your own. Stay focused. Watch your galaxy grow. A FOCUS TIMER THAT MEANS SOMETHING Set a session, put your phone down, and stay on task. Finish, and you'll discover a new celestial body, the longer and more consistent you are, the rarer your discoveries. BUILD YOUR OWN UNIVERSE Pan and zoom across a living star map. Your discoveries form constellations, drift with subtle parallax, and glow against deep-space nebulae. No two universes look alike. COLLECT THE COSMOS Fill your Codex with 60+ celestial types across stars, planets, nebulae, and cosmic phenomena, from common yellow stars to mythic discoveries. STAY CONSISTENT Daily missions, focus streaks, and level progression keep you coming back. Watch your universe expand session after session. COSMIC SHIELD Block distracting apps during a session so nothing pulls you off course. Beautifully designed, calm, and rewarding. Stellar makes deep work something you look forward to.
Screenshots
Verdict
The clearest difference is update cadence: PDF Scanner at weekly against Stellar's every 2 months. PDF Scanner also leads on iOS requirement (16.0 vs 18.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
PDF Scanner ships an update weekly, Stellar every 2 months. The most recent releases landed on October 19, 2026 and October 3, 2026 respectively.
| Parameter | PDF Scanner | Stellar |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 160 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Payal Amreliya | Julian Khuy |
In-app purchases
PDF Scanner
No in-app purchases
Stellar
No in-app purchases









