Comparison

PDF Compressor vs ModelWitch

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

Head to head
About

PDF Compressor

Features
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Easily compress large PDF files into smaller sizes without losing quality. PDF Compressor helps you reduce file size, optimize storage, and share documents faster — all while maintaining clear, readable text and images. Whether you need to send reports, eBooks, or scanned documents, this app makes it quick and simple. Compress single or multiple PDFs in just a few taps. Perfect for students, professionals, and anyone managing digital documents. Key Features: • Compress large PDF files into smaller sizes instantly • Maintain high quality text and image clarity • Preview before and after compression • Batch compress multiple files at once • Import PDFs from Files, iCloud, or other apps • Save and share compressed files easily • Lightweight, fast, and offline supported Why Choose PDF Compressor: • Advanced compression algorithm for better results • Fast, secure, and easy to use • No watermark, no hidden charges • Save device storage and upload faster Optimize your PDFs with one tap. Keep your files small, clear, and share-ready anytime, anywhere. Privacy policy : https://krpdfcompressorprivacypolicy.blogspot.com Terms of use : https://sites.google.com/view/kr-terms-of-use/home

About

ModelWitch

Features
Read full description

Stop getting blindsided by Claude rate limits. ModelWitch puts your live Claude Pro usage right on your iPhone — the same session, weekly, and Claude limits you'd otherwise have to dig for elsewhere. One glance tells you exactly how much runway you have left, with color-coded gauges that turn from green to orange to red as you approach your limit. CORE TRACKING — FREE • Secure Claude Pro login via real OAuth — your password never touches the app • Live 5-hour session usage gauge • Live 7-day weekly usage gauge • Live Fable 5 weekly usage gauge • Extra pay-as-you-go credit gauge, for accounts with it enabled • Anthropic API cost dashboard with real-time intra-day estimates to beat the official 24-hour reporting lag (Admin API key) • Optional monthly budget gauge for precise API spending guardrails • Color-coded urgency at a glance — green, orange, red • Instant cached data on launch, so it works even offline • Manual pull-to-refresh, plus best-effort background refresh roughly every 15 minutes • Smart error recovery with plain-language explanations and one-tap fixes • Custom usage alerts — threshold warnings, limit-reached, and reset reminders • 7-day usage history chart Everything above is fully usable with no payment, no extra account creation beyond your existing Claude Pro login, and no ads. GO PREMIUM FOR MORE Five upgrades for people who live in Claude every day: Apple Watch Your usage on your wrist — a full Watch app displaying live session counts and real-time API cost estimates, complete with complications for Modular, Infograph, Meridian, and other faces, plus a Smart Stack card and Siri & Shortcuts support. iPhone Widgets Home Screen widgets in small, medium, and large sizes (featuring the multi-account dashboard with live intra-day API cost projections), and Lock Screen widgets including circular, inline, rectangular, and Dual layouts — with interactive tap-to-refresh right from the widget. Always-Fresh Background Sync A dedicated push notification pipeline keeps your widgets, complications, and app reliably current in the background — beyond what iOS's best-effort scheduler alone can guarantee. Deep Usage Analytics 30-day historical charts instead of 7, plus insight cards for average usage, days spent over 80%, your peak usage day, and your weekly trend direction. Usage Matrix A 90-day calendar heatmap across Session, Weekly, Sonnet, Fable, and Anthropic API spend — spot patterns across every metric you track at a glance instead of digging through history one day at a time. A free trial is available on Premium plans, so you can try the Watch app and widgets before committing. BUILT FOR HOW YOU ACTUALLY WORK ModelWitch was built by a Claude Pro user who got tired of finding out mid-task that a session limit had quietly run out. It shows the same session percentage, weekly percentage, and precise "resets in Xh" countdown you'd get by checking on a laptop — without needing a laptop open. PRIVACY BY DESIGN ModelWitch authenticates with Anthropic using a secure OAuth browser flow. Your credentials are never seen or stored by this app — only an access token is kept, encrypted in the iOS Keychain. Usage data is cached locally on your device for offline access and is never sold or shared with third parties. ModelWitch is an independent, third-party app and is not affiliated with, endorsed by, or sponsored by Anthropic. "Claude" is a trademark of Anthropic PBC. Whether you're deep in an agentic coding session or just keeping an eye on your weekly budget, ModelWitch keeps your Claude Pro limits exactly where you need them — at a glance, on your iPhone and your wrist. Terms of Use: https://www.modelwitch.com/terms Privacy Policy: https://www.modelwitch.com/privacy

Screenshots

PDF Compressor4 screens
ModelWitch4 screens

Verdict

The call

The clearest difference is iOS requirement: PDF Compressor at 13.0 against ModelWitch's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. PDF Compressor sells 3 in-app purchases, starting at $0.99 per 7 days and ModelWitch sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference Ā· 5 level
PDF Compressor versus ModelWitch: the parameters behind the verdict, then further details
ParameterPDF CompressorModelWitch
PriceFreeFree
Update frequency—Every 4 days
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS13.0 — better17.0
Further details — not scored
Size15 MB9 MB
Age rating4+17+
DeveloperKevin RupareliyaLumenif OÜ

In-app purchases

3 purchases

PDF Compressor

Subscriptions3
  • Weekly [ 1 Week ]$0.997 Days
  • Monthly [ 1 Month ]$2.991 Month
  • Yearly [ 1 Year ]$19.991 Year
3 purchases

ModelWitch

Subscriptions2
  • ModelWitch Premium — Monthly7 Days trial$2.991 Month
  • ModelWitch Premium — Yearly7 Days trial$19.991 Year
One-time1
  • ModelWitch Premium — Lifetime$34.99

Questions

Is PDF Compressor free?
PDF Compressor is free to download, with in-app purchases available.
Is ModelWitch free?
ModelWitch is free to download, with in-app purchases available.
Do PDF Compressor or ModelWitch have ads?
Neither PDF Compressor nor ModelWitch shows ads.

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