OpenFile vs NoteFlow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpenFile
Instantly preview over 100 file formats on your iPhone or iPad without uploads or accounts. Explore 3D models, code, documents, databases, and more with built-in developer tools for advanced file analysis. Prioritizes privacy with on-device processing.
- Preview 100+ file formats
- On-device processing, no uploads
- Interactive 3D model viewer
- Syntax highlighting for code
- Browse and query SQLite databases
- Built-in developer tools (Hex Inspector, Compare Files)
- Integrates with Files app and Share Sheet
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Open, preview, and explore over 100 file formats — right on your iPhone or iPad. No uploads, no account, no setup. Just tap a file and see it instantly. RICH FORMAT PREVIEWS Every format gets a purpose-built viewer: • 3D Models — Rotate and zoom glTF, OBJ, STL, PLY, and more in an interactive viewer • Code — Syntax highlighting for Swift, Python, JavaScript, TypeScript, Rust, Go, and 20+ languages • Databases — Browse SQLite tables, run SQL queries, and explore schema • Documents — Read PDFs, EPUB books, Word, Excel, and PowerPoint files • Archives — Explore ZIP, RAR, 7-Zip, TAR, and ISO contents without extracting • Audio & Video — Play MP3, WAV, FLAC, MP4, MOV, MKV, and more • Data Formats — View JSON, YAML, XML, CSV, Parquet, and Jupyter notebooks • Geospatial — Visualize GeoJSON, GPX, and KML on interactive maps • Fonts — Preview OpenType and TrueType font files • Images — View JPEG, PNG, GIF, HEIC, WebP, PSD, and SVG BUILT-IN DEVELOPER TOOLS Go beyond viewing with 10 built-in tools: • Hex Inspector — View raw file bytes • Compare Files — Side-by-side diff • Checksum — Calculate MD5, SHA-1, and SHA-256 hashes • Extract Text — Pull text from any document • Export as PDF — Convert any preview to PDF • Base64 — Encode and decode • Pretty Print — Format JSON, XML, HTML, and CSS • Text Statistics — Word count, line count, reading time • File Identification — Detect the true file type from magic bytes PRIVACY FIRST All processing happens on your device. Files are never uploaded. No account is needed. No tracking. WORKS WITH YOUR WORKFLOW • Open files directly from the Files app or Share Sheet • Browse iCloud Drive • Track recently opened files and pin your favorites • Search your file history Works on iPhone and iPad. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
NoteFlow
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NoteFlowは、Markdownで知識を整理する人のためのキャプチャキューです。 iPhoneからメモ、リンク、会話の抜粋、テキストクリップをすばやく残せます。記録した内容は一つのキューで確認し、利用できる場合はSiri AIで整理してから、Filesへ書き出すか、選択したフォルダへMarkdownとして保存できます。 NoteFlowが大切にしているのは、保存前の確認です。記録は、内容が整っているか、どこへ保存するかを自分で確認するまでキューに残ります。 主な機能: - メモ、リンク、会話、クリップのクイック記録 - 準備済み、処理中、待機中、整理済みを確認できるキュー - Apple AIによる整理と、利用できない場合のローカル処理 - Obsidianで扱いやすいMarkdown書き出し - Filesで選択したVaultフォルダへの直接保存 - テキスト記録や主要画面の表示に対応したショートカット - AI処理や書き出し前の機密情報マスキング - 既存ファイルを上書きしない競合回避保存 アカウント、サブスクリプション、ログインは必要ありません。
Screenshots
Verdict
The clearest difference is in-app purchases: NoteFlow at none against OpenFile's 2. NoteFlow also leads on iOS requirement (18.0 vs 26.2). On price, ads and device support 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
Both are free to download. OpenFile sells 2 in-app purchases, starting at $2.99 per month. NoteFlow asks for nothing beyond the download.
| Parameter | OpenFile | NoteFlow |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 26.2 | 18.0 — better |
| Further details — not scored | ||
| Size | 113 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Life Utility Apps, LLC | ESC |
In-app purchases
OpenFile
- Monthly$2.991 Month
- Lifetime Access$19.99
NoteFlow
No in-app purchases









