If you've used Genius Scan, you already know why people like it: point the camera at a page and a second later you have a straightened, cropped, readable PDF, with none of the clutter that bloats other scanner apps. It's the tool equivalent of a good kitchen knife — no personality crisis, just sharp.
Paperlock starts at the same moment — paper in hand, phone out — and then goes somewhere completely different. Genius Scan's job ends when it hands you a file. Paperlock's job starts there: it reads the document, understands what it is, files it behind Face ID, and answers questions about it months later.
Here's an honest look at both, including who should just get Genius Scan and be done with it.
What Genius Scan does brilliantly
Genius Scan has been around a long time, and it shows in the best way. The capture is quick and dependable: it finds page edges, fixes perspective, cleans up shadows, and handles multi-page documents without ceremony. When you're standing at a counter scanning a six-page lease, speed and reliability are the whole game, and Genius Scan wins it.
Its other great strength is exports. Genius Scan is built to move files along — email them, save them to cloud storage, send them wherever your work or life expects PDFs to arrive. If your scanning is really a delivery problem ("get this signed form to the school office"), that flexibility is exactly what you want. There's a free tier, with paid upgrades unlocking more.
And it's focused. No feature sprawl, no social anything, no seventeen buttons. If you distrust apps that try to do everything, Genius Scan's restraint is a genuine feature.
If that's your whole need — paper in, tidy PDF out, sent on its way — you can stop reading and be happy. (For simple one-offs, your iPhone can even do a rough version with built-ins; here's how to turn photos into a PDF on iPhone without installing anything.)
The gap: what happens after the scan
Now the honest difference. Scan a document with Genius Scan and you have a file — a good file, but a file. It's on you to name it something you'll recognize in two years, decide where it lives, and remember it exists at all. Like most scanner apps, Genius Scan can make the text inside your scans searchable to a degree, but searching still means you remembering the right word to search for, in the right app, in the right folder.
That works fine for the documents you handle this week. It quietly fails for the documents that matter in eighteen months: the warranty for the dishwasher that just died, the receipt your insurer suddenly wants, the ID card that expired without telling anyone. The scan existed. Somewhere. Under some name.
Paperlock is built for exactly that gap. When you save a document — scanned with the camera, imported as a PDF, or found in your camera roll — it reads the whole thing, even handwriting, and works out what it is: who it's from, the date, the amount, when it expires. It gives the document a clear title like "Blue Bottle Coffee receipt — $14.20" and files it automatically. No folders, no tags, no naming — on purpose.
Then, later, you just ask. "When does my passport expire?" "How much did I spend at the dentist last year?" "Find the receipt from that cafe last fall." Answers arrive with the source documents attached, and if the answer isn't in your vault, Paperlock says so instead of guessing. It also watches expiry dates for you, with reminders 30 days and 7 days before anything runs out — no setup. You can see how the whole thing works in more detail.
Shortest version: Genius Scan hands you files. Paperlock hands you answers.
Side by side
| Genius Scan | Paperlock | |
|---|---|---|
| Core job | Fast, clean capture of paper into PDFs | A private vault that reads and remembers your documents |
| After capture | You name, organize, and export the file | Reads, titles, and files it automatically — even handwriting |
| Finding things later | Folder browsing and text search over scans | Ask in plain English; answers come with the documents attached |
| Expiry dates | Not its job | Automatic reminders 30 and 7 days before anything expires |
| Sending files onward | Excellent — flexible exports to email and cloud services | Any document can be shared or exported as a PDF |
| Locking | Varies by setup | Face ID on open and after ~1 minute in background; sensitive documents blur until you re-confirm |
| Platforms | iPhone, with a broader ecosystem around it | iPhone only (runs on iPad in compatibility mode), coming soon |
| Accounts | Free tier; paid upgrades | No account or sign-up at all; free for 25 documents, subscription for unlimited |
The privacy angle
Worth naming, because a document app holds your life's paperwork. Paperlock is built as a locked vault first: documents are stored encrypted on your phone, the app locks with Face ID when you open it and again about a minute after you switch away, and sensitive documents like passports and medical papers show blurred thumbnails until you re-confirm. There are no accounts and no sign-up. When Paperlock reads a document to answer a question, that happens over an encrypted connection and nothing is stored on its servers — and nothing is ever used for ads or training.
That's not a knock on Genius Scan — it has a solid reputation, and we're not going to invent claims about how it handles data. The point is a difference in posture: scanner apps are built to move documents out to wherever you send them; Paperlock is built to keep them in, locked, and answerable.
Which one should you get?
Get Genius Scan if your scanning is mostly outbound — forms, paperwork for work, documents that need to become PDFs and land in an inbox or a cloud folder. It's fast, mature, unfussy, and its export flexibility is genuinely best-in-class for that life. You'll be well served.
Wait for Paperlock if your real problem is the shoebox — the receipts, warranties, IDs, and insurance papers that pile up and then hide when you need them. If you've ever lost a warm hour hunting for one receipt, you're the person Paperlock is being built for. It's coming soon to iPhone.
Honestly, both is fine. They don't compete for the same shelf: one is a scanner, one is a memory. Plenty of people will keep a scanner app for delivery jobs and keep everything that matters to them in Paperlock. Whatever you choose, pairing it with a simple system for the paper itself helps — here's a sane way to organize paper documents at home without buying a filing cabinet.
And if you're comparison shopping among the polished scanner apps, Scanner Pro is the other name that always comes up — we've written up how Paperlock compares to Scanner Pro too, in the same honest spirit.