DartPDF vs Folio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DartPDF
Edit, annotate, and sign PDF documents directly on your device. This app allows you to fill forms, redact sensitive information, rearrange pages, and even edit text and images within PDFs. All changes are saved locally, ensuring your data remains private.
- Edit text and images
- Fill forms and add signatures
- Redact sensitive content
- Rearrange and export pages
- OCR scanned PDFs
- Full-text search
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DartPDF is a PDF editor that runs entirely on your device. Open any PDF to mark it up, fill in forms, sign it, redact content, rearrange pages, or edit the text and images on the page. Changes save back to the original file. Nothing is uploaded. There's no account, no sync, and no ads. Features: • Highlight, underline, strikethrough, and freehand ink • Shapes, arrows, text boxes, notes, and stamps • Edit existing text and add images • Redaction that removes the covered text and images from the file, not just from view • Fill form fields (text, checkboxes, radio buttons, dropdowns), or add your own • Drawn signatures placed anywhere, plus certificate-backed PAdES digital signatures • OCR scanned PDFs so text can be selected and searched • Reorder, delete, and export pages to a new file • Full-text search, text selection, and links • Compare two versions side by side • Open password-protected files Runs on iPhone, iPad, and Mac. Opens PDFs from the Files app, share sheets, or drag-and-drop. Light and dark themes.
Folio
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Scan a document, edit the PDF, sign it and share it — without creating an account, and without a single page ever leaving your iPhone. Point your camera and Folio finds the page edges, straightens it, and captures automatically. Every scan is read on your device, so you can search your documents by the words inside them, and new scans even name themselves. PRIVATE BY DESIGN Most scanner apps make you sign in before you can scan a single page, then quietly sync your documents to their servers. Folio has no servers. • Your documents never leave your iPhone • No account, no sign-up, nothing to upload • Even the text recognition runs on-device • Lock the whole app behind Face ID SCAN ANYTHING • Automatic edge detection, perspective correction and auto-capture • Multi-page scanning in one go • Import photos or existing PDFs — crop and straighten them with adjustable corners FIND IT INSTANTLY • On-device text recognition makes every scan searchable • Search across titles AND the text inside your documents • Scans auto-name themselves from their contents A REAL PDF EDITOR (without wrecking the file) Most editors mangle a PDF the moment you touch it. Folio doesn't. Your original pages stay untouched — edits are layered only where you tap. • Edit text in place, matched to the original font, size and colour • Add text anywhere, highlight, and whiteout • Sign and draw with your finger • Everything stays sharp and true to the original ORGANISE EFFORTLESSLY • Colour-tinted folders — just drag a document in to file it • Favourites, rename, reorder and delete pages • A clean, beautiful library SHARE YOUR WAY • Export as a PDF, as images, or as plain text • Send to any app in a tap MADE FOR Receipts and expense claims. Contracts you need to sign and send back today. ID cards and passports. Whiteboards before someone wipes them. Book pages, lecture notes, forms and homework. Anything you would rather not hand to a cloud service you have never heard of. Beautifully designed for the latest iPhone, Folio feels fast, light and effortless. Free to download. Scan smarter today.
Screenshots
Verdict
The clearest difference is ads: DartPDF at none against Folio's shown. DartPDF also leads on update cadence (every 3 days vs every 2 weeks) and device support (4 vs 2). On price and in-app purchases 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.
DartPDF ships an update every 3 days, Folio every 2 weeks. The most recent releases landed on October 31, 2026 and October 6, 2026 respectively.
| Parameter | DartPDF | Folio |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 days — better | Every 2 weeks |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 55 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Railway Engineering Solutions Pty Ltd | ali tavakolbakhoda |
In-app purchases
DartPDF
No in-app purchases
Folio
No in-app purchases









