Comparison

OnePreview vs La Pochette

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

Head to head
About

OnePreview

This app allows you to preview and interact with various developer file formats, including Markdown, code, databases, and archives, directly on your iPhone and iPad. It offers local processing for speed and privacy, with features like PDF export and structured data inspection.

Highlights
  • Markdown and MDX rendering
  • JSON, YAML, XML, CSV, TSV, TOML, ENV parsing
  • SQLite database inspection
  • Source code and log viewing
  • ZIP and TAR.GZ archive content preview
  • Mermaid diagrams and KaTeX math rendering
  • A4 PDF export for Markdown files
Features
Read full description

Preview Markdown, source code, structured data and archives on iPhone and iPad. OnePreview is a local-first file viewer with no account required. READ MARKDOWN, DIAGRAMS AND MATH View GitHub-style Markdown with tables, task lists and highlighted code. Switch between rendered content and source. Mermaid diagrams and KaTeX formulas use bundled rendering assets. EXPORT MARKDOWN TO PDF Open a standard Markdown file (.md or .markdown) in OnePreview to create an A4 PDF report. Check the actual PDF preview, with continued table headers, wrapped code, Mermaid diagrams and KaTeX formulas, then save it using the system file interface. Document content is processed on your device. INSPECT DATA, CODE AND ARCHIVES Read structured data and source code, inspect SQLite schemas and sample rows without editing the database, and see the folder hierarchy inside ZIP and TAR.GZ archives before extracting. SUPPORTED FORMATS Markdown (.md, .markdown), MDX, TextBundle, TextPack, JSON, JSONL, YAML, XML, CSV, TSV, TOML, ENV, INI, properties, Apple property lists (plist), SQLite (.sqlite, .sqlite3, .db), source code, plain text, logs, ZIP, TAR.GZ and TGZ. Syntax highlighting supports languages including Swift, Python, JavaScript, TypeScript, Java, C/C++, Objective-C, Ruby, Rust and Shell. OPEN YOUR FILES Tap Open File in OnePreview, or long-press a supported document in Files, choose Open With, then select OnePreview. A normal tap in Files may use Apple's built-in preview; OnePreview does not replace every system preview on iPhone or iPad. Try the sample folder from the home screen to explore supported formats.

About

La Pochette

Features
Read full description

La Pochette brings all your important papers together in one place: ID card, certificates, prescriptions, payslips, bills, contracts, warranties… You scan them, you file them, and they are backed up securely. SIMPLE AND FAST Scan a document in seconds: the edges are detected automatically, the image is straightened, and you can save several pages in one go. You can also import PDFs and photos you already have, from your phone or from a computer. FIND ANYTHING IN AN INSTANT Search for a word inside the content of your documents and find it right away, even with no connection. YOUR DOCUMENTS, THERE WHEN YOU NEED THEM Export the document you need, send it by email, or print it. Simply, from the app. FILED AUTOMATICALLY The app files your documents directly on your phone, without going through any outside service. You always confirm the suggested category. Every category can be customized. YOUR PAPERS, IMPOSSIBLE TO LOSE Every document is backed up automatically and kept safe. If your phone is lost, stolen or broken, all you have to do is sign in again on a new device to get every one of your documents back. PROTECTED, EVEN FROM US Your documents are encrypted on your phone, before they are backed up. Our servers only ever hold unreadable data: we cannot see the content, the titles or the categories of your papers. You are the only one who can open them, thanks to your unique key. It is generated at random when you create your account - it does not depend on your password. Since it is the only way in, we have you save it when you sign up, so that a lost phone never becomes a lost vault. A stolen phone will not talk either: the app's files stay encrypted on the phone's storage too. Without your biometrics, they are nothing but unreadable data. STORED IN FRANCE Your backups are hosted on servers in France, in compliance with the GDPR. Your data stays in Europe and is never sold. RESPECT FOR YOUR PRIVACY No ads, no trackers, no data resale: these are ruled out by design, not by a mere promise. * No cloud AI, no third-party API ever sees your documents. * No advertising trackers, no invasive third-party analytics. * No back door: we cannot decrypt a vault, so there is no "assisted recovery". Saving your key is the only way in - we own that, and we say it plainly. * No phone number collected (GDPR data minimization). NOTHING KEEPS YOU HERE You can export all of your documents at any time, for free. Your data belongs to you. PLANS Free: up to 15 backed-up documents. Premium: from €0.99/month - up to 10 GB of storage, which is more than 5,000 documents. Security and export are included in every plan. Terms of Use: https://la-pochette.fr/en/terms.html Privacy Policy: https://la-pochette.fr/en/privacy.html

Screenshots

OnePreview4 screens
La Pochette4 screens

Verdict

The call

The clearest difference is in-app purchases: OnePreview at none against La Pochette's 2. La Pochette's advantage is update cadence (daily vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. La Pochette sells 2 in-app purchases, starting at $0.99 per month. OnePreview asks for nothing beyond the download.

UpkeepUpdate frequency

OnePreview ships an update weekly, La Pochette daily. The most recent releases landed on October 25, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
OnePreview versus La Pochette: the parameters behind the verdict, then further details
ParameterOnePreviewLa Pochette
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyWeeklyDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.016.4 — better
Further details — not scored
Size9 MB74 MB
Age rating4+4+
Developer培克 罗damien diep

In-app purchases

None

OnePreview

No in-app purchases

2 purchases

La Pochette

Subscriptions2
  • Premium mensuel$0.991 Month
  • Premium annuel$8.991 Year

Questions

Is OnePreview free?
OnePreview is free to download, with no in-app purchases.
Is La Pochette free?
La Pochette is free to download, with in-app purchases available.
Do OnePreview or La Pochette have ads?
Neither OnePreview nor La Pochette shows ads.
Which is updated more often, OnePreview or La Pochette?
OnePreview ships an update weekly, and La Pochette daily. Most recently, OnePreview was updated on October 25, 2026 and La Pochette on October 8, 2026.

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