Comparison

PDFShare vs Grammar Check

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

Head to head
About

PDFShare

Features
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SharePlay a PDF file when FaceTime. When having FaceTime with some friends, one person copies and pastes a PDF file into the SharePlay session. Then everyone can synchronously browse and flip pages. Click a button can switch to Whiteboard Mode. Then you can draw lines together with your friends. You can switch colors when drawing. You can place images on the whiteboard.  Before sending an image, you can move, magnify, or rotate the image. After adjusting an image, press it and hold for about 3 seconds, then release to share the image with everyone. You and your friends or family can make a beautiful picture wall on the whiteboard together. === EULA ===: [standard Apple Terms of Use (EULA)](https://www.apple.com/legal/internet-services/itunes/dev/stdeula/)

About

Grammar Check

Enhance your writing with an AI-powered assistant. Correct grammar and spelling, rewrite text, translate, and summarize content. Offers multiple input methods including voice and camera scanning.

Highlights
  • AI grammar and spell check
  • Text rewriting and paraphrasing
  • Content summarization and expansion
  • Multi-language translation
  • Voice-to-text and OCR scanning
  • Dictionary and synonym finder
Features
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Your all-in-one writing companion. Check grammar, fix spelling, rewrite text, and polish your writing with AI — right from your iPhone. GrammarMe is the smart writing assistant that helps you write clearly, confidently, and error-free. Whether you're drafting an email, editing an essay, or polishing a social media post, GrammarMe catches mistakes and improves your text in seconds. 8 POWERFUL WRITING TOOLS • Grammar Check — Catch grammar, spelling, and punctuation errors instantly. Choose from four modes: Relaxed, Balanced, Strict, or Professional. Get detailed explanations for every correction so you actually learn from your mistakes. • Rewrite — Rephrase your text while keeping the original meaning. Choose from Mild, Moderate, or Extensive paraphrasing levels with 12+ writing tones. • Enhance — Improve clarity, tone, and readability. Make your writing sound polished and professional with a single tap. • Translate — Translate your text into 100+ languages with accurate AI translation. • Continue — Stuck mid-sentence? Let AI finish your thought naturally and seamlessly. • Expand — Add depth, detail, and examples to short text. Perfect for turning notes into full paragraphs. • Reduce — Trim the excess. Shorten text while preserving every important point. • Summarize — Get concise summaries in paragraph, bullet point, or numbered list format with adjustable detail levels. DICTIONARY & SYNONYMS • Define any word with multiple definitions, parts of speech, and example sentences • Find synonyms organized by category: Common, Formal, and Casual • Listen to pronunciation with built-in text-to-speech MULTIPLE INPUT METHODS • Type or paste text directly • Dictate with voice-to-text — hands-free grammar checking • Scan documents with your camera for instant OCR text extraction • Import PDF, TXT, and RTF files SMART FEATURES • Side-by-side view of original and corrected text • Full correction history — revisit and search past edits anytime • Text-to-speech playback for all results • 12+ writing tones including Formal, Casual, Creative, and Professional • 4 grammar strictness modes to match your needs • Dark mode and 8 beautiful themes WHO IS GRAMMARME FOR? • Students checking essays, homework, and research papers • Professionals polishing emails, reports, and presentations • Non-native English speakers improving their writing • Content creators crafting social media posts and articles • Anyone who wants to write with more confidence Download GrammarMe and start writing better today.

Screenshots

PDFShare4 screens
Grammar Check4 screens

Verdict

The call

The clearest difference is update cadence: PDFShare at every 3 days against Grammar Check's monthly. On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PDFShare sells 2 in-app purchases, starting at $0.99 per 6 months and Grammar Check sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PDFShare ships an update every 3 days, Grammar Check monthly. The most recent releases landed on October 18, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 9 level
PDFShare versus Grammar Check: the parameters behind the verdict, then further details
ParameterPDFShareGrammar Check
PriceFreeFree
Rating—4.0 (17 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—17 — better
Update frequencyEvery 3 days — betterMonthly
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size3 MB11 MB
Age rating4+4+
Developer勇 崔Ideas All Day Ltd.

In-app purchases

2 purchases

PDFShare

Subscriptions2
  • Individual7 Days trial$0.996 Months
  • Family7 Days trial$1.996 Months
2 purchases

Grammar Check

Subscriptions2
  • Unlimited Weekly3 Days trial$3.997 Days
  • Unlimited Yearly$24.991 Year

Questions

Is PDFShare free?
PDFShare is free to download, with in-app purchases available.
Is Grammar Check free?
Grammar Check is free to download, with in-app purchases available.
Do PDFShare or Grammar Check have ads?
Neither PDFShare nor Grammar Check shows ads.
Which is updated more often, PDFShare or Grammar Check?
PDFShare ships an update every 3 days, and Grammar Check monthly. Most recently, PDFShare was updated on October 18, 2026 and Grammar Check on October 25, 2026.

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