Free help library
Guides & free tools.
Every how-to guide, free in-browser tool, and comparison page in one place. All of it is free to read and use — no account, no upload, and definitely no weekly subscription.
How-to guides
Step-by-step guides for iPhone jobs.
Native-first: each guide starts with what iOS can already do free, then shows where a focused app helps.
Merge PDF files on iPhone Combine two or more PDFs into one document on iPhone or iPad — reorder pages before exporting, keep everything on-device, and skip the $9.99/week "PDF combiner" traps. Create a QR Code Create a QR code on iPhone for a link, Wi-Fi network, contact card, or text — free with the built-in Shortcuts app, or with QR Scanner when you need saved, reusable codes. Scan Documents A step-by-step guide to scanning paper documents into clean, multi-page PDFs on iPhone — using the built-in Notes scanner or a dedicated app for auto-crop, OCR, and export. Create a Strong Password Create a genuinely strong password or passphrase on iPhone using cryptographically secure randomness and an entropy target — on-device, free, and without paying a weekly subscription for a one-line OS feature. Delete Duplicate Photos Find duplicate and similar photos on iPhone, choose the best version to keep, and delete safely after reviewing each group. HEIC to JPG on iPhone A step-by-step guide to converting iPhone HEIC photos to JPG or PNG on-device — including how to stop new photos from saving as HEIC, and how to keep your location data private. Scan QR Codes Safely Scan QR codes safely on iPhone, check the displayed domain before opening, spot quishing scams, and know when Camera or a scanner with history is the right tool. Make a Scan Searchable (OCR) Turn a scanned image-only PDF into searchable, selectable text on iPhone using on-device OCR — so you can find documents by what they say, copy text, and stop paying a weekly scanner subscription. Remove a Person from a Photo Remove a photobomber, a stranger, or a person from a photo you own — on-device on iPhone, when results look realistic, and how to keep the photo private. Edit a PDF on iPhone To edit a PDF on iPhone, open it in a PDF editor, add text or fill form fields, sign, annotate, reorder pages, and export. Most of this is free and on-device with PDF Toolkit — no Adobe subscription. Storage Full, Nothing to Delete Your iPhone says storage is full but you can't find anything to delete. Here's where the space actually hides — duplicates, near-duplicate burst shots, screenshots, and "Other" — and how to clear it safely. Remove a Watermark on iPhone A step-by-step guide to erasing watermarks, date stamps, and text overlays from photos you own — on-device on iPhone, with no upload, no output watermark, and no weekly subscription. Free Up Storage Find what is taking space on your iPhone, review duplicate photos, large videos, screenshots, and cleanup categories before deleting anything. Compress a PDF on iPhone Reduce PDF file size on iPhone before email, forms, portals, or messages. Use PDF Toolkit when you also need signing, merge, split, and export controls. Remove Objects from Photos Remove distractions, text, stickers, and unwanted objects from photos you own or have rights to edit using a brush, preview, refine, and export workflow. Sign a PDF on iPhone The fastest way to sign a PDF on iPhone is to open the file, add a signature, place it on the page, and export the signed copy. PDF Toolkit keeps that workflow simple and private.
Free in-browser tools
Tools that run right here — nothing uploaded.
Each one works entirely in your browser. No sign-up, no data sent anywhere.
Password generator Strong passwords and passphrases with a live entropy meter, generated in your browser. Nothing uploaded. QR link safety checker Paste a QR-code link and inspect look-alike domains, shorteners, and suspicious redirects before opening it. iPhone storage estimator Estimate how much space you could recover from photos, screenshots, and large videos. PDF email size checker Will that PDF actually send? Check against Gmail, Outlook, iCloud Mail, WhatsApp, Slack, and Discord limits. Scan-to-PDF size estimator Predict how big a scanned PDF will be from page count, color mode, and quality. Photo size & crop guide The right photo size and aspect ratio for Instagram, eBay, Poshmark, Etsy, LinkedIn, and X. Subscription cost calculator What a $4.99/week app really costs per year — and what pay-once saves you.
Tool overviews
What each utility does, in plain language.
Watermark Remover Erase watermarks, date stamps, text overlays, and stickers from photos you own — on-device on iPhone, with a free preview tier, no watermark on output, and no $4.99-per-week trap. HEIC to JPG Converter Convert iPhone HEIC photos to JPG or PNG on-device when a web form, Windows PC, or non-Apple recipient rejects HEIC. Free for everyday use, no watermark, no $4.99-per-week trap. Document Scanner Scan paper documents into clean PDFs on iPhone with auto-crop, multi-page capture, OCR, page organization, and export. iPhone Storage Cleaner Find duplicate photos, similar photos, screenshots, large videos, and storage clutter on iPhone with a review-first cleanup workflow. Object Remover Remove distractions, text, stickers, and unwanted objects from photos you own or have rights to edit with Object Cleanup. PDF Compressor Compress large PDFs on iPhone before sending them through email, forms, portals, or messages. PDF Toolkit gives you compression plus signing, merge, split, and export tools.
Comparisons
Swarmval apps versus the subscription incumbents.
Document Scanner Comparison Compare Document Scanner with other iPhone scanner apps on auto-crop, multi-page PDFs, OCR, export, privacy, and pricing clarity. PDF Toolkit vs Acrobat A factual comparison of PDF Toolkit and Adobe Acrobat for iPhone users who need signing, compression, merge, split, privacy, and clear pricing. Storage Cleaner Comparison Compare Storage Cleaner with generic iPhone cleaner apps on review-first cleanup, duplicate photos, large videos, privacy, pricing clarity, and fit.
Looking for the apps themselves? Browse the full roster or get the shipped apps.