Doc Align vs Captionify
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Doc Align
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Key Features - Scan documents, notes, OA boards, blackboards, and photos - Import photos saved on your iPhone - Automatically detect document edges - Auto-correct distortion and straighten images - Extract text from images (OCR) - Share as JPEG or PDF - Share extracted text only What is Doc Align? Doc Align automatically corrects distortions and converts captured or imported images into clean, straight PDFs or JPEGs. It works like a scanner, and with OCR, you can extract text for work, study, or organization. Sharing is simple — send PDFs or images instantly. You can also import photos saved on your iPhone, making it easy to use anytime. Everything is done within the app for smart document management at your fingertips. Useful for - Preparing neat documents for submission - Saving whiteboard notes or board writings - Organizing business cards or receipts into PDFs - Extracting text from images for reuse
Captionify
This app converts speech to text in real-time using on-device AI, offering live translation and AI-powered summaries. It prioritizes privacy by keeping all processing and data local, with no cloud reliance or account needed.
- Real-time transcription
- Live translation
- Face-to-face conversation mode
- AI summaries
- Apple Watch support
- Save and search transcripts
- On-device processing
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Captionify turns speech into text in real time, entirely on your device. Transcribe meetings, lectures, and conversations. Translate across languages instantly. No subscription. No account. Nothing sent to the cloud. REAL-TIME TRANSCRIPTION Using on-device AI, Captionify converts spoken words to text the moment they're said — no internet connection required. Ideal for lectures, meetings, interviews, and noisy environments where you can't afford to miss a word. LIVE TRANSLATION Understand any language as it's spoken. Captionify translates speech in real time so you can follow along in any conversation, anywhere in the world. FACE-TO-FACE CONVERSATION MODE Talking with someone who speaks a different language? Face-to-Face mode lets two people hold a natural bilingual conversation on a single device — one speaks, the other reads, then you swap. No interpreter. No awkward pauses. AGENT MODE Talk to an on-device AI assistant that can use tools, connect to your own MCP servers, and remember saved chats — all without sending anything to the cloud. CUSTOM PIPELINE (BETA) Mix and match independent transcription, translation, and voice engines — on-device or your own custom endpoint — to build a live pipeline that's entirely your own. AI SUMMARIES Powered by Apple Intelligence, Captionify distills long transcripts into the key points that matter. Everything runs on-device — your words never leave your phone. APPLE WATCH SUPPORT See live captions on your wrist and control recording remotely. Keep your phone in your pocket while staying connected to every word. SAVE & SEARCH YOUR TRANSCRIPTS Every session can be saved and searched later. Build a personal library of transcripts — no cloud storage, no account, no limits. PRIVACY BY DESIGN Captionify uses Apple's on-device AI for all processing. Your voice and your transcripts stay on your device always. 100% FREE No subscription. No paywall. No account required. Every feature, available from the moment you open the app.
Screenshots
Verdict
The clearest difference is in-app purchases: Captionify at none against Doc Align's 1. Captionify also leads on ads (none vs shown) and update cadence (every 10 days vs monthly). Doc Align's advantage is iOS requirement (15.0 vs 26.0). On price 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. Doc Align sells 1 one-off in-app purchase. Captionify asks for nothing beyond the download.
Doc Align ships an update monthly, Captionify every 10 days. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.
| Parameter | Doc Align | Captionify |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Monthly | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Apple Watch — better |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 18 MB | 133 MB |
| Age rating | 4+ | 4+ |
| Developer | Kazuhisa Kobayashi | Jonathan Gregorio |
In-app purchases
Doc Align
- Remove Ads$4.99
Captionify
No in-app purchases









