Comparison

DocLens vs Folio

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DocLens

Features
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DocLens is a fully offline frame-select OCR tool: draw a box, extract exactly the text you circled, and translate it on your device. The liability clause in a contract, the date on a court ruling, one verbatim line from an interview: you choose the block, it reads only that. Headers, footers, ads and noise are never touched. Key features: 1. Frame-select OCR: shoot or pick a photo, drag a box, and only the text inside is recognized. Low-confidence lines are dashed-underlined for line-by-line proofreading before translation. 2. Accurate recognition: selectable recognition languages with automatic per-line detection for mixed Chinese and English; handwriting and rotated text supported; Enhance and Retry rescues poor scans. 3. On-device translation: results are translated paragraph by paragraph for fluent output. Chinese, English, Japanese, Korean, French, German and Spanish are supported, and language packs can be downloaded in advance. 4. QR and barcode scanning: frame a code to open URLs in an in-app browser, dial numbers, compose emails, open locations, or copy Wi-Fi passwords and contact fields. 5. Fully offline: recognition, translation and barcode scanning all run on your device. No account, no analytics, no cloud upload, and no network access from shutter to text. 6. Minimal permissions: DocLens never asks for full photo library access, only permission to save your exports. Data stays in the local sandbox and database. 7. Torch and Enhance Retry: turn on the light for close-up documents, and re-run recognition with boosted contrast when a scan comes out poorly. Membership: New users get a free 7-day trial, extendable once by another 7 days from the membership page. After the trial, you can still scan free once per day. VIP is a one-time purchase: no subscription, no ads, no tracking. Great for contract review, hearing and meeting notes, interview transcription, research excerpts, receipt and form data extraction, and translating foreign signs. Your files go nowhere. That is what makes DocLens different: it does not make decisions for you. It hands judgment back to you, and keeps privacy structural with on-device computing.

About

Folio

Features
Read full description

Folio keeps your notes, todos, and files together, and now you can plan them with the people you invite. Capture a thought in seconds, pin a note to your Lock Screen, and share a plan that everyone can edit on iPhone and Mac. NEW: PLAN IT TOGETHER • Invite people to a note by email or with a single-use link • Everyone who accepts can edit, with photos, files, and checklists included • If two people change the same line, nothing is lost: theirs shows in the note and yours stays right below it as "Your edit" • Accepting and editing shared notes is free. Sending invitations needs Folio Pro • Report or block someone at any time SIGN IN ONLY IF YOU WANT TO • Folio works without an account. Skip sign-in and your notes stay on your device • Sign in with Apple or Google to share notes and take Folio Pro to your other devices • With Folio Pro, your notes, todos, folders, and files stay in sync across iPhone and Mac • Delete your Folio account from Settings at any time CAPTURE AND WRITE • Jot down a note with the quick-add bar • Write with Markdown, headings, checklists, quotes, and text colors • Add code blocks with syntax highlighting, and tidy JSON with Format JSON • Attach photos, files, and map locations to your notes • Save where you are as a note with the Save This Place shortcut • Create unlimited notes for free TURN PLANS INTO TODOS • Keep standalone todos beside your notes • Break a task into subtasks and check them off one by one • Set due days or timed reminders, add labels, filter by Today or Tomorrow, and attach files KEEP THE IMPORTANT THINGS CLOSE • Pin a note to your Lock Screen so it's there at a glance • Set reminders on individual notes • Export a note or a collection as text, Markdown, PDF, or CSV • Restore deleted notes from Trash • Require Face ID or Touch ID to open protected folder files FOLIO PRO • Sync your whole library across your devices • Send invitations to shared notes • Organize notes and files in folders • Improve your writing with on-device AI Enhance • Pin more notes to your Lock Screen • One-time purchase. No subscription. YOUR DATA No ads and no tracking. Without an account, your notes stay on your device, or in your own iCloud with Folio Pro. When you sign in, the notes you sync or share are stored on Folio's servers so they can reach your devices and the people you invite. They are encrypted in transit and at rest, but not end-to-end encrypted. AI Enhance runs on your device with Apple Intelligence, which needs a supported device and must be turned on. Usage analytics help us improve Folio. They're on by default, never include your note content, and can be turned off in Settings. The privacy policy has the details.

Screenshots

DocLens4 screens
Folio4 screens

Verdict

The call

The clearest difference is ads: Folio at none against DocLens's shown. Folio also leads on update cadence (every 3 days vs every 2 weeks). DocLens's advantage is iOS requirement (17.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. DocLens sells 1 one-off in-app purchase and Folio sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

DocLens ships an update every 2 weeks, Folio every 3 days. The most recent releases landed on November 7, 2026 and November 12, 2026 respectively.

Scorecard3 real differences Ā· 3 level
DocLens versus Folio: the parameters behind the verdict, then further details
ParameterDocLensFolio
PriceFreeFree
Update frequencyEvery 2 weeksEvery 3 days — better
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, Mac
Requires iOS17.0 — better26.0
Further details — not scored
Size65 MB10 MB
Age rating4+4+
Developerę¶› 刘Tom Weiss

In-app purchases

1 purchases

DocLens

One-time1
  • DocLens - OCR$9.90
1 purchases

Folio

One-time1
  • Folio Pro$3.99

Questions

Is DocLens free?
DocLens is free to download, with in-app purchases available.
Is Folio free?
Folio is free to download, with in-app purchases available.
Do DocLens or Folio have ads?
DocLens shows ads; Folio does not.
Which is updated more often, DocLens or Folio?
DocLens ships an update every 2 weeks, and Folio every 3 days. Most recently, DocLens was updated on November 7, 2026 and Folio on November 12, 2026.

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