Comparison

QuickNotes Recall vs PDF Editor & Sign PDF

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

Head to head
About

QuickNotes Recall

Features
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QuickNotes Recall turns anything worth knowing into something you'll never forget, using the same memory science that top students, language learners, and memory champions rely on every day. Whether you're learning names at work, studying for an exam, picking up a new language, or just trying to remember the things that matter, QuickNotes Recall makes it effortless to do it right. HOW IT WORKS The app is built around two scientifically proven learning methods: Spaced Repetition: After every review, QuickNotes Recall calculates the perfect next review date automatically. Cards you know well come back weeks later. Cards you're still learning come back sooner. Over time, your sessions shrink while your retention grows. The Interleaving Method: Instead of drilling one topic at a time, review sessions mix your categories automatically. Research consistently shows that interleaved practice produces dramatically better long-term retention than blocked study. THE ANCHOR: YOUR SECRET WEAPON Every card has an Anchor field, a place for a vivid image, a funny story, or a personal mnemonic. Built-in coaching with category-specific examples helps you craft anchors that actually work. Most apps skip this. It's the single biggest factor in whether something sticks. FEATURES Spaced Repetition Engine: Rate each card as Remembered, Unsure, or Forgot and the schedule adjusts automatically. Interleaved Review Sessions: All categories mixed together for maximum retention. Anchor Coaching: Tap the lightbulb for guided examples tailored to your category. Bulk Import: Paste a list, open a CSV, or share text from another app. Contact Import: Bring in names straight from a vCard (.vcf) or a Google Contacts CSV export. Duplicate Detection: Bulk imports flag likely duplicates before you commit them. Undo Last Rating: Truly reverses your last rating, schedule and all. Smart Queue Management: Updated engine fallbacks guarantee a smooth, reliable review queue whether you have a minimal library or are studying thousands of cards. Session Limits: Set a daily card cap so your queue never feels overwhelming. Daily Goals & Lifetime Streaks: Set a review target and watch your lifetime streak build to celebrate your long-term consistency. Gentle Reminders: An optional daily notification that only nudges you when cards are actually due. Tags & Categories: Fully customizable with your own field labels, tags, and search. JSON & CSV Backup: Export your full library any time, plus automatic daily on-device snapshots. Restore on a new device instantly. Practice Mode: Drill any category without affecting your review schedule. Customizable Appearance: Light, dark, or system theme with custom accent colors. YOUR PRIVACY, GUARANTEED QuickNotes Recall collects absolutely nothing. No account. No sign-up. No analytics. No ads. Everything stays on your device. It never touches a server. WHAT YOU CAN LEARN People & Names Ā· Languages & Vocabulary Ā· History & Dates Ā· Science & Formulas Ā· Study & Exam Prep Ā· Professional Knowledge Ā· Arts & Culture Ā· Anything with a custom category Free. No subscriptions. No in-app purchases. No catch. The primary adjustments were made in the features list to integrate the 1.0.2 updates. "Daily Goals & Streaks" now highlights the new lifetime tracking, and a new "Smart Queue Management" bullet was added to showcase the improved fallbacks for both minimal and extreme use cases without getting overly technical.

About

PDF Editor & Sign PDF

Features
Read full description

Doc Hero – PDF Editor & Sign PDF Edit, sign, and manage PDF documents with ease using Doc Hero. Whether you need to fill out forms, add signatures, edit text, merge files, or convert images to PDF, Doc Hero gives you all the essential PDF tools in one simple app. Perfect for students, professionals, business owners, and anyone who works with documents on the go. Edit PDF Documents Make quick changes to your PDF files anytime. • Add text to PDFs • Edit existing text • Highlight important content • Annotate and mark up documents • Fill PDF forms easily Sign PDF Documents Sign documents in seconds with a professional e-signature experience. • Draw your signature with your finger • Create stylish typed signatures • Place signatures anywhere in a PDF • Resize and reposition signatures • Sign contracts, agreements, and forms Designed to be simple, reliable, and efficient. • Clean and intuitive interface • High-quality PDF export • Quick document sharing • Works offline for most features Why Choose Doc Hero? • Powerful PDF editor • Easy electronic signatures • PDF signer and document signer • Fast performance • No complicated workflow Privacy Policy:https://digitalhole.github.io/DocHero.html Terms of Use:https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

QuickNotes Recall3 screens
PDF Editor & Sign PDF4 screens

Verdict

The call

The clearest difference is in-app purchases: QuickNotes Recall at none against PDF Editor & Sign PDF's 1. QuickNotes Recall also leads on ads (none vs shown) and iOS requirement (13.0 vs 26.0). PDF Editor & Sign PDF's advantage is update cadence (every 5 weeks vs every 3 months). On price 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. PDF Editor & Sign PDF sells 1 one-off in-app purchase. QuickNotes Recall asks for nothing beyond the download.

UpkeepUpdate frequency

QuickNotes Recall ships an update every 3 months, PDF Editor & Sign PDF every 5 weeks. The most recent releases landed on October 11, 2026 and October 19, 2026 respectively.

Scorecard4 real differences Ā· 2 level
QuickNotes Recall versus PDF Editor & Sign PDF: the parameters behind the verdict, then further details
ParameterQuickNotes RecallPDF Editor & Sign PDF
PriceFreeFree
Update frequencyEvery 3 monthsEvery 5 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.0 — better26.0
Further details — not scored
Size25 MB13 MB
Age rating4+4+
DeveloperRyan BairArima Jain

In-app purchases

None

QuickNotes Recall

No in-app purchases

1 purchases

PDF Editor & Sign PDF

One-time1
  • Unlock All Features$3.99

Questions

Is QuickNotes Recall free?
QuickNotes Recall is free to download, with no in-app purchases.
Is PDF Editor & Sign PDF free?
PDF Editor & Sign PDF is free to download, with in-app purchases available.
Do QuickNotes Recall or PDF Editor & Sign PDF have ads?
PDF Editor & Sign PDF shows ads; QuickNotes Recall does not.
Which is updated more often, QuickNotes Recall or PDF Editor & Sign PDF?
QuickNotes Recall ships an update every 3 months, and PDF Editor & Sign PDF every 5 weeks. Most recently, QuickNotes Recall was updated on October 11, 2026 and PDF Editor & Sign PDF on October 19, 2026.

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