Comparison

Astra PDF vs Modo

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

Head to head
About

Astra PDF

Features
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Tired of clunky, slow PDF editors that charge a fortune just to add a simple page number? Every day, millions of professionals and students waste hours struggling with complex desktop software or slow online converters just to merge, compress, or sign a document. They risk their data security on free web converters, or get locked into expensive monthly subscriptions they don't need. You deserve a fast, secure, and native PDF utility that works instantly on your iPhone and iPad. Meet A+PDF Scanner Editor Converter—the ultimate all-in-one PDF workspace designed for speed, privacy, and visual clarity. Whether you need to sign a contract on the go, compress a file for an email attachment, scan a paper receipt, or add professional page numbering to an official report, A+PDF handles it instantly. --- CORE FEATURES & HIGH-PERFORMANCE TOOLS --- • NATIVE PDF EDITOR & ANNOTATION: - Add page numbers instantly with custom position, size, and color options. - Render watermarks natively with real-time screen previews. - Highlight text, add custom stamps, and draw annotations directly. • PRO COMPRESSION ENGINE: - Reduce PDF file sizes by up to 90% without losing text readability. - View instant file size previews before saving. • DOCUMENT SCANNER (Mobile Office): - Scan documents, receipts, and paper notes using auto-edge detection. - Apply professional black-and-white, color, or grayscale filters. • SPLIT & MERGE: - Combine multiple PDF documents into a single organized file. - Extract specific pages or split a long PDF into individual documents. • CONVERT & SIGN: - Convert PDFs to high-quality images (PNG/JPEG) instantly. - Insert stamps, photos, and signatures anywhere on your document pages. • MILITARY-GRADE SECURITY: - Lock sensitive PDF files with password protection. - Unlock password-protected PDFs to edit or compress them. --- PRIVACY-FIRST GUARANTEE --- Your files are yours. Unlike online web tools, A+PDF processes all document edits, scans, and compressions 100% locally on your device. None of your files are ever uploaded to external servers, ensuring complete security for confidential contracts and private documents. Simplify your document workflow today!

About

Modo

A fast, aesthetic notepad and calendar planner designed for instant thought capture without clutter or ads. Offers a clean interface with customizable notes, a smart camera scanner, and on-device voice recording. Syncs with Google Drive for seamless data backup and migration.

Highlights
  • Instant quick capture and offline speed
  • Aesthetic sticky notes with customization
  • Dual home views: Feed vs. Quick View Grid
  • On-device camera scanner for documents
  • Crystal-clear voice memos with on-device cleaning
  • Google Drive cloud sync
  • Hardware AES-256 vault and biometric lock
  • Markdown support and bi-directional WikiLinks
Features
Read full description

Tired of bloated note apps with complex menus and ads? Modo is a fast, aesthetic notepad, calendar planner, and widget companion built to capture thoughts with zero delay. No sign-ups, no tracking, zero clutter. Pure, intuitive productivity for daily elegance. === WHY YOU'LL LOVE MODO === 1. Instant Quick Capture & Offline Speed Open and write immediately. Powered by an instant offline-first engine with zero lag, Modo ensures you never lose sudden inspiration. 2. Aesthetic Sticky Notes & Memo Studio - Beautiful sticky card views with versatile typography and customizable card frames. - Versatile formats: Post-it notes, square memo cards, structured lists, and aesthetic styles. - Customize background tones, opacity, borders, and font scale (70%-200%) in Memo Studio. 3. Dual Home Views: Feed vs. Quick View Grid - Standard Feed: Clean masonry feed with greeting headers, search, and pin. - Quick View Grid: 2-column card layout with floating Speed Dial and quick filters. - Batch Actions: Long-press to color, pin, lock, share, or delete multiple notes. 4. Smart Camera Scanner for Books & Receipts (On-Device) - Complete Privacy: Runs locally on-device with zero data sent to external servers. - All-in-One Viewfinder: Capture books, documents, receipts, and book ISBN barcodes. - Smart Formatting: Reconnects broken line wraps into smooth paragraphs. - Scan-to-Note: Formats receipts and expenses into clean Markdown tables. 5. Crystal-Clear Voice Memos & Voice Clean - On-Device Voice Clean: Cuts background rumble & boosts vocals for crisp speech. - Live Equalizer Wings: Dynamic audio wave visualization dancing to your voice. - 2-Row Wide Waveform Player: Dedicated scrubbing controls and separate timing. - Multi-Audio Sync: Attach multiple recordings with lossless cloud streaming. 6. Google Drive Cloud Sync & Media Streaming - Zero Lock-in: Sync directly to your private Google Drive app storage. - Lossless Audio & Image Sync: Complete bidirectional sync for notes & media. - Background Session Recovery: Smooth, automatic session reconnects after restarts. - 1-Tap Device Migration: Seamlessly transfer your entire notebook to a new phone. 7. Hardware AES-256 Vault & Biometric Lock - On-device AES-256 encryption backed by hardware KeyStore / Keychain. - Biometric Security: Lock private notes with Fingerprint, Face ID, or PIN. - 100% Offline: Full security with zero internet connection required. 8. Markdown Power, Caret Popover & WikiLinks - Caret Popover (/): Type "/" to insert headings, checklists, quotes, or timestamps. - Bi-directional WikiLinks ([[ ]]): Interlink notes to build your knowledge web. - Smart Paste: Turns copied links into rich cards and table data into Markdown. 9. Integrated Calendar, Checklist & D-Day Milestones - Unified Calendar: Browse notes and tasks organized neatly by date. - Interactive Checklists: Strike through completed to-dos with a tap. - D-Day Countdowns: Track exams, birthdays, and deadlines with widget badges. 10. Daily Inspiration & Mindful Wellness Cards - Daily Inspiring Quote: Fresh curated wisdom delivered midnight with 1-tap save. - Health & Mind Advice: Practical lifestyle tips to bring calm to your day. 11. 8 Curated Background Tones & True Dark Mode - Paper White, Warm Kraft, Calming Sage, Deep Indigo, E-Ink Monochrome, etc. - Eye-friendly True Dark Mode crafted for comfortable night reading. === IDEAL FOR === - Thinkers & writers wanting a clean, distraction-free markdown scratchpad. - Professionals organizing meetings, daily agendas, and receipts. - Students needing voice memos, camera scanning, and exam countdowns. - Aesthetic enthusiasts who appreciate clean, beautifully styled minimalist apps. - Privacy-conscious users valuing 100% offline data ownership. Download Modo today and experience the purest, fastest way to organize your world!

Screenshots

Astra PDF4 screens
Modo4 screens

Verdict

The call

The clearest difference is ads: Astra PDF at none against Modo's shown. On price, rating, ratings volume and update cadence 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. Astra PDF sells 2 in-app purchases, starting at $0.29 per 7 days and Modo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Astra PDF against 5.0 for Modo. Both are backed by a comparable volume of ratings — 10 and 5 respectively.

UpkeepUpdate frequency

Astra PDF ships an update every 3 days, Modo every 2 days. Both last shipped on October 31, 2026.

Scorecard1 real difference · 9 level
Astra PDF versus Modo: the parameters behind the verdict, then further details
ParameterAstra PDFModo
PriceFreeFree
Rating5.0 (10 ratings)5.0 (5 ratings)
Positive reviews—100.0% of reviews
Number of ratings10 — better5
Update frequencyEvery 3 daysEvery 2 days — better
AdsNo — betterYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size8 MB89 MB
Age rating4+4+
DeveloperAstra VenturesEUNGJIN KIM

In-app purchases

2 purchases

Astra PDF

Subscriptions1
  • Weekly Access$0.297 Days
One-time1
  • Lifetime Access$14.99
1 purchases

Modo

One-time1
  • Modo Pro Lifetime$3.99

Questions

Is Astra PDF free?
Astra PDF is free to download, with in-app purchases available.
Is Modo free?
Modo is free to download, with in-app purchases available.
Which has better reviews, Astra PDF or Modo?
Astra PDF and Modo are both rated 5.0 out of 5 on the App Store, from 10 and 5 ratings respectively.
Do Astra PDF or Modo have ads?
Modo shows ads; Astra PDF does not.
Which is updated more often, Astra PDF or Modo?
Astra PDF ships an update every 3 days, and Modo every 2 days. Most recently, Astra PDF was updated on October 31, 2026 and Modo on October 31, 2026.

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