Comparison

OmniPDF vs XiaoJia Redaction Assistant

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

Head to head
About

OmniPDF

Features
Read full description

OmniPDF is a batch PDF processing tool. Select multiple files and use shared settings for compression, watermarks, passwords, or page organization. You can also combine several operations into a workflow to reduce repetitive processing and setup. Organize contracts, application documents, reports, and scanned files. Preview the results in the app and review changes before exporting or sharing. 【Batch Processing】 • Compress multiple PDFs with a target file size. • Find and permanently remove searchable sensitive text across multiple PDFs. • Add the same watermark or page numbering to multiple PDFs. • Set, change, or remove passwords required to open multiple files. • Check page orientation, remove blank pages, trim page margins, or adjust paper size. • Remove file metadata and annotations, or make editable content a fixed part of the page. 【Combine Multiple Steps】 • Choose several tools and set their execution order. • Combine compression, sensitive text removal, and watermarks in one workflow. • Save workflows you use frequently and reuse them later. • Review the results, then continue with other operations or export. 【A Complete PDF Toolkit】 • Merge, split, delete, extract, duplicate, and reorder pages. • Rotate and trim pages, insert pages, and replace pages. • Scan documents, turn images into PDF files, and export PDF pages as images. • Add text, annotations, signatures, date stamps, and stamps. Fill existing form fields. • Draw rectangles over areas to permanently remove sensitive content. 【Optional PDF Inspection】 • Check file size, page orientation, blank pages, password protection, annotations, form fields, and metadata. • Choose which items to process based on the inspection results. • Inspect first if needed, or choose a tool and start processing directly. Processing and result previews are available in the app. Exporting or sharing processed files requires an in-app purchase. OmniPDF — one batch of files, multiple steps, one workflow. Privacy Policy: https://zzthhj.github.io/OmniPDF/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

XiaoJia Redaction Assistant

Features
Read full description

XiaoJia Redaction Assistant is a document privacy tool focused on "local processing, permanent redaction, and safer sharing." It ensures that contracts, resumes, medical records, and ID photos have their sensitive information truly covered before being sent out — not just hidden under a removable annotation layer. 【Use Cases】 Contracts & Bids · Resumes & HR Documents · Medical & Legal Files · Screenshots & Scans Sharing · External Presentations & Archiving Key Features: • Image / Scan Redaction — Pixel-level covering, plus EXIF/GPS metadata cleanup • PDF Redaction — Rasterized rebuild to prevent fake redaction via "erasable annotations" • Word Processing — Import Word documents, export secure PDFs (Pro) • Text Redaction — Precise replacement for TXT, Markdown, and more • Rule Templates — One-click selection for daily privacy, contracts, legal, HR, medical, and other scenarios • Custom Rules / Allowlists / Blocklists / Anonymous Mapping — Keep the same set of codenames consistent across files • Batch Processing — Multi-file queue processing, ideal for bulk materials (Pro) 【Account & Quota】 • Available after signing in with Apple • Free accounts come with a lifetime base page quota • Pro supports weekly/monthly subscriptions, with page quotas granted per cycle • Additional page top-up packs available for purchase on demand • Page quotas synced via iCloud Drive to reduce repeated free-claiming across multiple devices • Your original files or redacted results are not synced 【Security & Privacy】 • Redaction is performed locally; business files are not automatically uploaded by default • Optional Face ID / Touch ID / App passcode lock • Supports sign-out and local account deletion • Rule configurations can be selectively synced; business documents always remain on your device 【Language Support】 Simplified Chinese, Traditional Chinese, English, 日本語, 한국어 (UI language and document recognition region can be set separately) Pro Features: • Word file processing • Batch import and batch redaction • Larger page quotas (weekly/monthly subscriptions) and top-up packs • Advanced rules and anonymous mapping capabilities XiaoJia Redaction Assistant — cover what needs covering, then share with confidence. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: http://www.jdarray.com/privacy/privacy.html

Screenshots

OmniPDF3 screens
XiaoJia Redaction Assistant4 screens

Verdict

The call

The clearest difference is update cadence: XiaoJia Redaction Assistant at weekly against OmniPDF's every 6 weeks. XiaoJia Redaction Assistant also leads on iOS requirement (16.0 vs 18.6). 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. OmniPDF sells 3 in-app purchases, starting at $3.99 per month and XiaoJia Redaction Assistant sells 8 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

OmniPDF ships an update every 6 weeks, XiaoJia Redaction Assistant weekly. The most recent releases landed on October 22, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 4 level
OmniPDF versus XiaoJia Redaction Assistant: the parameters behind the verdict, then further details
ParameterOmniPDFXiaoJia Redaction Assistant
PriceFreeFree
Update frequencyEvery 6 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS18.616.0 — better
Further details — not scored
Size17 MB17 MB
Age rating4+4+
Developerzhentao zhangBeijing Boshujia Technology Co., Ltd

In-app purchases

3 purchases

OmniPDF

Subscriptions2
  • OmniPDF Pro Monthly$3.991 Month
  • OmniPDF Pro Yearly$29.991 Year
One-time1
  • OmniPDF Pro Lifetime$59.99
8 purchases

XiaoJia Redaction Assistant

Subscriptions2
  • XJ Redaction Pro Weekly$6.997 Days
  • XJ Redaction Pro Monthly$19.991 Month
One-time6
  • XJ Redaction 10-Page Pack$0.99
  • XJ Redaction 50-Page Pack$5.99
  • XiaoJia Redaction 100-Page Pack$11.99
Show 3 more
  • XJ Redaction 200-Page Pack$19.99
  • XJ Redaction 300-Page Pack$24.99
  • XJ Redaction 500-Page Pack$39.99

Questions

Is OmniPDF free?
OmniPDF is free to download, with in-app purchases available.
Is XiaoJia Redaction Assistant free?
XiaoJia Redaction Assistant is free to download, with in-app purchases available.
Do OmniPDF or XiaoJia Redaction Assistant have ads?
Neither OmniPDF nor XiaoJia Redaction Assistant shows ads.
Which is updated more often, OmniPDF or XiaoJia Redaction Assistant?
OmniPDF ships an update every 6 weeks, and XiaoJia Redaction Assistant weekly. Most recently, OmniPDF was updated on October 22, 2026 and XiaoJia Redaction Assistant on October 11, 2026.

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