Put a receipt in front of CamScanner and you get a beautiful, straightened, shadow-free PDF in about two seconds. Put the same receipt in front of Paperlock and you get an answer to "how much did I spend at the hardware store in March?" — months later, without remembering the file exists.
Same piece of paper, two completely different jobs. That's really the whole comparison, but the details matter, so let's do it properly.
What CamScanner is genuinely great at
CamScanner has been turning paper into PDFs since before most people knew their phone could do that, and the years show in the best way. It's a deep, polished scanning tool.
- Batch scanning. Feed it a stack of pages and it captures, crops, and straightens them one after another, fast. If you've ever had to digitize a binder, a semester of class notes, or a year of invoices, this mode is the difference between an afternoon and a coffee break.
- PDF tools. Multi-page PDFs, merging, reordering pages, filters that make a gray receipt look freshly printed. It's not just a camera; it's a small document workshop.
- Exports everywhere. PDF or image, off to email, cloud storage, wherever your files live. If your documents need to end up somewhere else — an accountant, a shared drive, a client — CamScanner is built for the handoff.
- Text search over scans. Like most serious scanner apps, it can recognize the printed text in your scans, so you can search for a word you know appears on the page.
- It's everywhere. CamScanner isn't an iPhone-only tool, which matters if your household or office mixes platforms. Paperlock is iPhone-only.
It has a free tier, with a subscription unlocking the fuller toolkit. If your life involves regularly converting piles of paper into tidy files, it's a veteran for a reason.
What Paperlock does instead
Paperlock starts where scanner apps stop: after the capture. It's a private, Face-ID-locked vault, and its core trick is that it reads every document you put in — what it is, who it's from, the date, the amount, when it expires — and files it automatically. No folders, no tags, no typing "Receipt_Depot_0314_final.pdf".
Then, later, you just ask: "when does my passport expire?", "how much did I spend at Blue Bottle?", "find receipts from that cafe last fall". You get the answer with the source documents attached — and if the answer isn't in your vault, it says so rather than guessing. It handles handwriting, and relative dates like "last fall" work. That's how the whole app works.
Two things scanner apps simply don't attempt:
- Expiry reminders with zero setup. Anything with an expiration date — passport, ID, insurance, warranty — triggers reminders 30 days and 7 days out, automatically.
- Finding documents already hiding in your photos. With permission, it scans your camera roll on the phone, picks out likely documents, and lets you approve what gets imported — originals untouched. If your camera roll is anything like most people's, there are hundreds of receipts buried in there.
Paperlock is coming soon to the App Store: free for 25 documents and 10 questions, with Paperlock Plus at $4.99/month or $39.99/year for unlimited everything plus iCloud sync.
Side by side
| CamScanner | Paperlock | |
|---|---|---|
| Built for | Producing clean PDFs from paper, fast | Storing documents and answering questions about them |
| Batch scanning big stacks | Excellent — this is its home turf | Multi-page scanning, but not a production line |
| What you end up with | Files you name, organize, and export | A vault that filed everything itself |
| Finding things later | Browse or search for exact words in a scan | Ask in plain English: "how much was the vet bill?" |
| Expiration dates | Not its job | Read automatically, with reminders at 30 and 7 days |
| PDF editing and exports | Deep toolkit; exports anywhere | Any document can be shared or exported as a PDF |
| Platforms | More than just iPhone | iPhone only |
| Lock and privacy posture | Check its current policy | Face ID lock, encrypted on your phone, no account, documents never stored on its servers |
Choose CamScanner if…
- You scan in volume. Digitizing an archive, a contract pile, a filing cabinet? CamScanner's batch mode and PDF tools will save you real hours. Paperlock can't match that throughput and doesn't try.
- The destination is a file system. If your documents need to become properly named PDFs in a shared drive or an accountant's inbox, you want a tool whose entire purpose is producing and exporting files.
- You genuinely like organizing. Some people find a well-kept folder tree satisfying, keep it current, and can find anything in ten seconds. If that's you, a powerful scanner plus your own system is hard to beat — and honestly, you don't have the problem Paperlock solves.
- You need it beyond iPhone. Paperlock is iPhone-only; CamScanner isn't.
Choose Paperlock if…
- Your problem isn't scanning — it's finding. Most people can photograph a receipt. The failure happens eight months later, when "that appliance warranty" is somewhere among four hundred unnamed files and camera-roll photos. If storing receipts so you can actually retrieve them is the real goal, a pile of well-scanned PDFs doesn't get you there — a memory does.
- You'll never maintain a filing system. Paperlock has no folders on purpose. Nothing to name, nothing to sort, nothing to fall behind on.
- Some of it is sensitive. IDs, medical papers, contracts. Paperlock locks behind Face ID, relocks after about a minute in the background, and blurs thumbnails of sensitive documents until you confirm it's you. There's no account and no sign-up, and documents sent for reading are processed just long enough to answer — never stored server-side, never used for ads.
- Deadlines keep ambushing you. The expired-passport-at-the-airport genre of surprise is exactly what automatic expiry reminders exist to end.
The honest bottom line
CamScanner and Paperlock aren't really rivals — they answer different questions. CamScanner answers "how do I turn this paper into a good file?" better than almost anything, and it has earned its longevity. Paperlock answers "what did that document say, and where is it now?" — the question that usually goes unanswered.
A useful test: think of the last time a document let you down. If the pain was producing it — slow capture, crooked scans, wrestling a PDF together — get CamScanner and don't look back. If the pain was finding it — the warranty you know you photographed, the receipt from who-knows-when — that's the gap Paperlock was built for, and it's coming soon.
And if you're weighing scanner apps generally, the same intake-versus-memory logic applies to Paperlock vs. Adobe Scan — different scanner, same honest trade-off.