Comparison

Chas App vs PDF Aide

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

Head to head
About

Chas App

This app allows users to earn points by completing surveys for companies. Accumulated points can then be redeemed for prizes. It aims to help businesses gather user feedback.

Highlights
  • Complete surveys
  • Earn points
  • Redeem points for prizes
  • Provide company feedback
Features
Read full description

Chas is an app that seeks to improve companies by making surveys to their users. Users taking the survey will receive points after completion of each survey and will be able to exchange points for prizes.

About

PDF Aide

Streamline your document management with this comprehensive PDF tool. Convert images, Office files, and web pages to PDF, or export PDFs to editable formats. Edit, annotate, merge, split, and secure your documents with ease.

Highlights
  • Convert images, Office files, and web pages to PDF
  • Export PDFs to editable formats
  • Annotate and draw on documents
  • Merge and split PDF files
  • Compress PDF file size
  • Password protect sensitive documents
Features
Read full description

PDF Aide: Revolutionizing Your Document Workflow with Professional Editing and Conversion! Tired of constantly switching between multiple apps to process documents? PDF Aide is your best choice—the most comprehensive and user-friendly PDF processing tool designed specifically for iPhone. Whether you're a student, business professional, or working remotely, our all-in-one toolkit helps you convert, edit, sign, and manage documents in seconds. Powerful conversion tools can convert virtually anything to high-quality PDFs or export PDFs to editable formats: • Image to PDF: Instantly convert photos, scans, and gallery images. • Office Conversion Suite: Seamlessly convert Word, Excel, and PowerPoint documents to PDF. • Web to PDF: Save any webpage as a PDF for offline reading and archiving. • Text and More: Convert plain text and other document types with a single click. Advanced editing and annotation: More than just viewing PDFs, take control of them: • Annotations: Add annotations and draw directly on documents. • Merge and Split: Merge multiple files into a single PDF or extract specific pages into a new document. • Compression: Reduce file size for easy sharing via email or chat tools without loss of quality. Security and Organization: Your privacy and file organization are our top priorities: • Password Protection: Protect sensitive information using advanced encryption technology. • Search: Easily and quickly find the content you need in long documents. Why choose PDF Aide? • High Fidelity: Preserves original fonts, layout, and formatting during conversion. • Privacy First: We handle your documents securely—your data is safe. • User-Friendly: A clean and intuitive interface designed to maximize your productivity Subscriptions & Privacy: Payment will be charged to your iTunes Account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage your subscriptions in your App Store Account Settings. Privacy Policy: https://pdf.kestrelcybers.com/privacy-policy.html Terms of Use (EULA): https://pdf.kestrelcybers.com/user-agreement.html Contact Us: For any inquiries or support, please contact us at: pdfaide.ios@outlook.com

Screenshots

Chas App4 screens
PDF Aide4 screens

Verdict

The call

The clearest difference is rating: PDF Aide at 5.0 against Chas App's 1.0. PDF Aide also leads on update cadence (every 3 days vs every 11 days). Chas App's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.6). On price, ratings volume, ads 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. PDF Aide sells 2 in-app purchases, starting at $4.99 per month. Chas App asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PDF Aide holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Chas App ships an update every 11 days, PDF Aide every 3 days. Both last shipped on October 24, 2026.

Scorecard5 real differences · 5 level
Chas App versus PDF Aide: the parameters behind the verdict, then further details
ParameterChas AppPDF Aide
PriceFreeFree
Rating1.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings11
Update frequencyEvery 11 daysEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size44 MB26 MB
Age rating4++4
DeveloperRoberto RoeschKESTREL CYBER PTE. LTD.

Customer experience

Chas App

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

PDF Aide

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Chas App

No in-app purchases

2 purchases

PDF Aide

Subscriptions2
  • monthly membership7 Days trial$4.991 Month
  • Annual Membership$39.991 Year

Questions

Is Chas App free?
Chas App is free to download, with no in-app purchases.
Is PDF Aide free?
PDF Aide is free to download, with in-app purchases available.
Which has better reviews, Chas App or PDF Aide?
PDF Aide is rated higher. Chas App averages 1.0 out of 5 from 1 ratings, while PDF Aide averages 5.0 from 1 ratings.
Do Chas App or PDF Aide have ads?
Neither Chas App nor PDF Aide shows ads.
Which is updated more often, Chas App or PDF Aide?
Chas App ships an update every 11 days, and PDF Aide every 3 days. Most recently, Chas App was updated on October 24, 2026 and PDF Aide on October 24, 2026.

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