Adobe Scan vs Genius Scan: an honest iPhone comparison

Your landlord wants the signed lease back tonight, and you have two scanner apps on your phone that everyone recommends. The Adobe Scan vs Genius Scan question sounds like a coin flip, because both are free and both turn paper into a clean PDF. The real differences sit in the account, where your pages are stored, and what happens after the scan, which is also why many people end up looking for an Adobe Scan alternative that does the whole job on the iPhone.

Why the Adobe Scan vs Genius Scan choice matters

The Adobe Scan vs Genius Scan choice matters because a scanner app holds your most private papers: IDs, tax forms, medical letters and contracts. Both apps capture a page well. They differ in what they do with it next, and that decides whether the app fits your life a year from now.

The two jobs a scanner app does

A scanner app does two jobs: it captures a page, and it keeps that page useful. Capture means edge detection, crop, straighten and a readable image. Keeping means text recognition (OCR, the conversion of printed text in an image into text a computer can search), search, folders, signing and sharing.

On capture, Adobe Scan and Genius Scan are close. On keeping, they take opposite paths: Adobe leans on its cloud and its other apps, and Genius Scan leans on the phone and paid upgrades. Every row in the comparison below comes back to this split.

How to choose between them, step by step

You can choose a scanner app in one sitting if you judge it on your own papers instead of its store page. The steps below work for Adobe Scan, Genius Scan or any other app, and they take about 20 minutes. If you have never scanned on the iPhone before, start with our guide on how to scan documents on iPhone.

1. List what you scan. Write down your five most common papers, such as receipts, a lease, school forms, an ID and handwritten notes. The list tells you if you need receipt reading, signing or only a clean PDF.
2. Decide where the files may live. Choose between a cloud account and files that stay on the phone. Tax papers and IDs are a reason to prefer the phone.
3. Scan the hardest paper first. Use a crumpled receipt or a two-sided form in poor light. A scanner that handles this handles everything else.
4. Search for a word inside the scan. Type a word from the middle of the page in the app's search. If the app finds the document, its text recognition works and is switched on for you.
5. Sign and share one document. Add your signature, then send the PDF by Mail or AirDrop. Count the apps and taps it takes.
6. Check the price of what you used. Note which of the steps above needed a paid plan. That is the real price of the app for you.

The part people get wrong: testing with easy paper

The most common test mistake is to scan one clean printed page on a dark table. Every app looks perfect on that page. Faded thermal receipts, glossy paper and handwriting are where the apps differ, so put at least one of each in your test.

Adobe Scan vs Genius Scan vs MRS, side by side

Adobe Scan, Genius Scan and MRS differ most on the account, the storage and the tools after the scan. The facts for Adobe Scan and Genius Scan come from the Adobe Scan App Store listing, Adobe's scanner page, the Genius Scan App Store listing and the Genius Scan pricing page, read at the time of writing.

Which one to pick

Pick Adobe Scan if you already pay for Acrobat, work on a desktop all day and need Word or Excel files from your scans. Pick Genius Scan if you want a free capture tool that keeps pages on the phone and you are ready to pay for Ultra when you need search. Pick MRS if you want search, editing, signing and receipt reading in one iPhone app, free text recognition on the device and no account at all.

Where each app keeps your papers

Adobe Scan keeps your papers in the cloud. Adobe's own page says your scans "are stored in your Adobe Document Cloud storage", and the App Store listing adds that scans are "automatically saved to Adobe Document Cloud". That is useful if you want the same file on a desktop an hour later.

Genius Scan takes the other side. Its pricing page says "Documents are processed and stored on your phone unless you explicitly decide to export them", and cloud backup is a separate Genius Cloud subscription. MRS works the same way: documents stay on the iPhone, text recognition and receipt reading run on the device, and MRS does not upload page content.

A simple rule for sensitive papers

A simple rule helps: the more a paper could hurt you in the wrong hands, the fewer places it should exist. A passport scan in a cloud folder, an email draft and a messaging app is three copies to protect. Scan it into an app that stores it on the phone, share it once when you must, and delete the sent copies.

How to test a scanner app in one evening

You can measure a scanner app with a few signals you can see on your own phone. Run each app through the same five papers from the step list, then answer these questions.

• Legibility: Can you read the small print at the bottom of the receipt when you zoom in?
• Search: Does a word from the middle of the lease find the document in the app's search?
• Copy: Can you select and copy a line of text from the PDF in the Files app?
• File size: Is a one-page scan small enough to email? MRS optimizes each page, so one A4 page comes to about 46 KB.
• Taps to sign and send: How many taps from the scan to a signed PDF in a Mail draft?
• Cost of the test: Which of the steps needed a trial or a subscription?

A workable test with five papers

A workable test uses five papers and one evening. Scan a receipt, a two-page lease, a school form, an ID card and a page of handwritten notes in each app. Search for one word from each, sign the lease, and send it to yourself.

Score each app from 0 to 6, one point per signal above. The numbers make the choice for you, and they show which paid feature you would need. For a longer shortlist, our roundup of the best PDF scanner app for iPhone uses the same test.

Common mistakes when switching scanner apps

Switching scanner apps goes wrong in a few predictable ways. Each one costs you a document you cannot find later.

• Mistake: leaving old scans without text. Scans made before you had OCR are pictures only. Re-scan the papers you search for often, or check our guide on how to make a PDF searchable.
• Mistake: keeping two libraries. Half your papers in one app and half in another means two searches for every lookup. Move the active papers into one app in one sitting.
• Mistake: paying for a feature you use once a year. Word export or cloud sync is worth money only if you use it every week. Check the test score before you subscribe.
• Mistake: treating a drawn signature as a certificate. A signature drawn on a PDF is a picture of your handwriting. It works for many everyday papers such as permission slips, but some contracts ask for a certificate-based digital signature, as our guide on how to sign a PDF on iPhone explains.

Edge case: receipts and forms

Receipts and paper forms are the edge case where scanner apps differ most. A receipt is thermal paper that fades, so scan it in the week you get it. MRS's Scan receipt tool saves the PDF and also reads the shop, date, total, tax and item lines into a text file in the Files app, on the device.

Forms need text on the page after the scan. Adobe hands this job to Acrobat Reader. In MRS you type on the scanned form with the text tool and place your saved signature in the same editor, so the form goes back without a second app.

Your scanner app checklist and next steps

A good scanner setup takes one evening and saves hours later. Use this checklist, and see our plan for going paperless in one weekend when you are ready for the whole drawer.

• Scan list: You know your five most common papers.
• Storage choice: You decided between cloud storage and files on the phone.
• Search test: A word inside a scan finds the document.
• Signature ready: Your signature is saved for the next form.
• One library: Your active papers live in one app with folders.

If Adobe Scan's cloud feels like too much and Genius Scan's paid search feels like too little, MRS puts free on-device OCR, library search, the editor, saved signatures, Scan receipt, folders and a 30-day trash in one iPhone app in 33 languages. For more choices, see our list of CamScanner alternatives.