Comparison

PDF Compare & AI Detector vs Sift Text Diff

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

Head to head
About

PDF Compare & AI Detector

Quickly identify discrepancies between documents and text files. Features synced scrolling, color-coded changes, and a similarity score to streamline reviews of contracts, reports, and AI-generated content. Offers detailed PDF analysis and report generation.

Highlights
  • Fast text/PDF comparison
  • Color-highlight additions & deletions
  • Similarity score (percentage)
  • PDF analysis: metadata, content, style
  • Detect missing text layers and scanned PDFs
  • Generate and share PDF analysis report
Features
Read full description

Your helper for working with AI, LLMs, and digital documents. Compare PDFs, Word, DOCX and text files, analyze documents, inspect PDF metadata, check formatting issues, and review AI-related signals before you share, submit or sign. Useful tools to compare, inspect, validate, and review content with confidence. COMPARE PDF, WORD, DOCX & TEXT • Highlight document differences • Check similarity score • Compare images in PDFs • Review changes side by side • Find added, removed and changed content AI SIGNALS / AI DETECTOR REVIEW • Check offline AI/Bot signal score • Review metadata and document properties • Detect unusual document patterns • See triggered signals with explanations The AI Signal Score does not determine whether content was created by AI. It highlights document signals that may require review. STYLE & FORMAT CHECKER • Detect formatting inconsistencies • Identify print cut and page edge risks • Check margins, spacing and text placement • Find long lines and readability issues • Detect excessive blank lines and empty pages PDF SECURITY INSPECTOR • View PDF metadata • Scan PDFs for hidden content • Detect tiny, invisible or unreadable text • Review suspicious links and embedded actions • Check PDF restrictions and permissions • Inspect forms, annotations and signature fields PDF REPORT EXPORT • Export a professional PDF report • Share document analysis results easily • Include AI signals, formatting issues and security findings • Add metadata summaries and key insights • Create reports for audits, reviews and documentation WORKS OFFLINE Document analysis runs offline on your device for enhanced privacy. Results are informational and may be incomplete or inaccurate. The app does not provide legal, forensic, cybersecurity or digital signature validation. USEFUL FOR • Contracts • Reports • Academic papers • Invoices • Resumes and CVs • Technical documents • Legal drafts • AI-generated drafts • Business documents • Before and after document versions PRO FEATURES: Some advanced features may require Pro access, including full PDF analysis, advanced comparison tools, larger document limits, detailed reports and premium document review features. PDF Compare & Analyzer is built for users who need more than a simple PDF viewer. Compare changes, inspect document structure, check metadata, review AI-related signals and analyze files with more confidence. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tagaev.xyz/pdftextcompate-pp.html Support: info@tagaev.xyz

About

Sift Text Diff

Compare two versions of any text side-by-side to quickly identify added, removed, or modified lines. Features include inline viewing, word-level highlighting, and options to ignore whitespace or case. Save comparisons locally for easy recall.

Highlights
  • Side-by-side diff with color coding
  • Inline diff view
  • Word-level highlighting
  • Ignore whitespace and case
  • Local archive for saved comparisons
  • Quick input swapping
Features
Read full description

Sift is a fast, focused text diff tool for writers, editors, and developers. Paste two versions of any text — drafts, code, contracts, emails, JSON — and Sift highlights every added, removed, and modified line in a clean side-by-side view. No accounts, no clutter, no upload to the cloud. KEY FEATURES • Side-by-side diff with line numbers and clear rose/sage color coding • Inline diff view that shows +/- changes in a single column • Word-level highlighting on modified lines so subtle edits stand out • Ignore whitespace and ignore case toggles for noise-free comparisons • Save useful comparisons to the local archive and recall them in one tap • Quick swap between LEFT and RIGHT inputs • One-tap clipboard paste into either editor BUILT FOR REAL WORK Whether you are reviewing a contract redline, checking a code refactor, comparing JSON payloads, or auditing a copy edit, Sift keeps the differences in front of you and the noise out of the way. PRIVACY No accounts. No tracking. No network calls. All saved comparisons stay on your device.

Screenshots

PDF Compare & AI Detector4 screens
Sift Text Diff3 screens

Verdict

The call

The clearest difference is review sentiment: PDF Compare & AI Detector at 50% against Sift Text Diff's 0%. PDF Compare & AI Detector also leads on rating (5.0 vs 2.0) and device support (3 vs 1). Sift Text Diff's advantage is in-app purchases (none vs 3). On price, ratings volume, ads and iOS requirement 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. PDF Compare & AI Detector sells 3 in-app purchases, starting at $1.99 per 7 days. Sift Text Diff asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PDF Compare & AI Detector holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 50% of PDF Compare & AI Detector's written reviews are positive against 0% of Sift Text Diff's.

Scorecard5 real differences · 5 level
PDF Compare & AI Detector versus Sift Text Diff: the parameters behind the verdict, then further details
ParameterPDF Compare & AI DetectorSift Text Diff
PriceFreeFree
Rating5.0 (2 ratings) — better2.0 (1 ratings)
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS17.617.0 — better
Further details — not scored
Size23 MB0 MB
Age rating12+4+
DeveloperMarsel TagaevLinh Phan Nhat Khanh

Customer experience

PDF Compare & AI Detector

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Sift Text Diff

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

3 purchases

PDF Compare & AI Detector

Subscriptions3
  • Weekly PRO Subscription3 Days trial$1.997 Days
  • Monthly PRO Subscription3 Days trial$3.991 Month
  • Annual PRO Subscription$19.991 Year
None

Sift Text Diff

No in-app purchases

Questions

Is PDF Compare & AI Detector free?
PDF Compare & AI Detector is free to download, with in-app purchases available.
Is Sift Text Diff free?
Sift Text Diff is free to download, with no in-app purchases.
Which has better reviews, PDF Compare & AI Detector or Sift Text Diff?
PDF Compare & AI Detector is rated higher. PDF Compare & AI Detector averages 5.0 out of 5 from 2 ratings, while Sift Text Diff averages 2.0 from 1 ratings.
Do PDF Compare & AI Detector or Sift Text Diff have ads?
Neither PDF Compare & AI Detector nor Sift Text Diff shows ads.

Other comparisons