Comparison

SlowRSS vs Compress PDF

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

Head to head
About

SlowRSS

Features
Read full description

A free RSS reader for iOS with Pinboard integration, offline reading of favourites, Feed categories and more to come.

About

Compress PDF

Easily reduce the size of PDF files for efficient storage and sharing. Offers adjustable quality levels and on-device processing for privacy. An optional Pro upgrade provides unlimited compressions, target file size control, and an ad-free experience.

Highlights
  • Compress PDFs by adjustable quality
  • Reduce PDF file size quickly
  • Preview original vs. compressed size
  • Share or save compressed PDFs
  • Private and secure on-device processing
  • Target file size control (Pro)
  • Unlimited compressions (Pro)
Read full description

Compress PDFs and make PDFs smaller easily. Optimize PDFs for storage and sharing. Need to format a document for printing, work, or official submission? Resize PDF pages to A4, Letter, Legal, Tabloid, A3, and Custom Dimensions. Features: • Adjustable Quality: Use a simple slider to balance file size • Target Size: Set a goal size • Live Preview: Compare original vs. compressed file size instantly • Quick Share: Easily save to Files or share via email and messages • Smart Document Scanner: Capture and crop documents cleanly right from your camera • Photos to PDF: Convert your images and photos directly into a clean PDF document • Quick Text Creator: Convert plain text typed on your keyboard directly into flat, print-ready text documents • Advanced Organizer: Merge separate files together or cleanly extract specific pages into a new document • Live Text OCR: Instantly lift editable text directly out of captured images • PDF Markup: Annotate documents by drawing, highlighting, and adding text directly to the page PDFs are flattened during export. Text, links, and bookmarks will no longer be selectable. Free users: • Standard PDF Compression (1 per day) • Standard A4 Resizing (1 per day) • Photos to PDF conversion (1 per day) • Quick Text to PDF documents (1 per day) • PDF Markup & Annotation tools (1 per day) Premium unlocks: • Target File Size mode (specify KB/MB) • Merge separate PDFs together • Extract specific pages into a new file • Live Text OCR Extraction • Custom Page Sizer & All Page Formats • No Daily Limit Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://shotexstudio.com/compress-pdf-resize-pdf/ On-Device Processing: Private and secure—no files ever leave your phone.

Screenshots

SlowRSS1 screens
Compress PDF3 screens

Verdict

The call

The clearest difference is in-app purchases: SlowRSS at none against Compress PDF's 3. SlowRSS also leads on update cadence (every 2 days vs fortnightly). On price, ads, device support 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. Compress PDF sells 3 in-app purchases, starting at $2.99 per 7 days. SlowRSS asks for nothing beyond the download.

UpkeepUpdate frequency

SlowRSS ships an update every 2 days, Compress PDF fortnightly. The most recent releases landed on October 9, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 8 level
SlowRSS versus Compress PDF: the parameters behind the verdict, then further details
ParameterSlowRSSCompress PDF
PriceFreeFree
Rating—4.7 (14 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—14 — better
Update frequencyEvery 2 days — betterFortnightly
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.217.6 — better
Further details — not scored
Size1 MB7 MB
Age rating17+12+
Developersilas slackPremiumAl Limited

In-app purchases

None

SlowRSS

No in-app purchases

3 purchases

Compress PDF

Subscriptions1
  • Premium Weekly$2.997 Days
One-time2
  • Premium$4.99
  • Premium$5.99

Questions

Is SlowRSS free?
SlowRSS is free to download, with no in-app purchases.
Is Compress PDF free?
Compress PDF is free to download, with in-app purchases available.
Do SlowRSS or Compress PDF have ads?
Neither SlowRSS nor Compress PDF shows ads.
Which is updated more often, SlowRSS or Compress PDF?
SlowRSS ships an update every 2 days, and Compress PDF fortnightly. Most recently, SlowRSS was updated on October 9, 2026 and Compress PDF on October 2, 2026.

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