PDF Compressor vs ChromoTune
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Compressor
Reduce the size of your PDF documents with this easy-to-use tool. Select your file, choose the desired output quality, and compress your PDFs with a single tap. Save disk space and speed up uploads and downloads.
- Compress PDF files
- Reduce PDF file size
- Select output PDF quality
- Easy-to-use interface
- Single-tap compression
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If you want to reduce your PDF file size, save your disk space back and faster on uploads and downloads, ... then let PDF Compressor - Compress PDF File app help you. You can easily compress your PDF files right on your device, with just one tap to select your file Select quality of output PDF to reduce file size PDF. PDF Compressor is a tool to compress PDF documents to reduce PDF file size. Compress PDF files allows you to select heavy PDF files to reduce their size. PDF compressor will simply reduce pdf file size with a single tap. PDF Compressor is free and the best tool to reduce PDF file size. Do download this compressor app and tell us more about how we can improve it. Compressing PDF file size makes it possible for anyone to reduce your PDF document size, especially useful for those PDF files with many scan graphics and photos. Compressed PDF documents require less disk space for storage and faster uploads and downloads save transmission time and cost. This app gives you access to compression options to help you to reduce PDF file size without compromising the document's integrity. Compress PDF File rewrites the entire PDF documents using selected compression options as efficiently as possible. Some PDF documents might not get compressed, because the PDF documents might be already compressed or have nothing much to compress. With our simple and easy-to-use app, you can compress/reduce pdf file sizes using your IOS device. Compress PDF file size has the following features: - Very smart and easy-to-use PDF compressor. - Compress PDF files to reduce PDF file size.
ChromoTune
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ChromoTune is a chromatic tuner for every instrument — guitar, bass, violin, cello, ukulele, brass, woodwinds, and voice. A swordfish hangs steady while the dial drifts behind it, showing how sharp or flat you are at a glance. Land in tune and it settles. • Chromatic — tunes any note, any instrument • Fast, accurate pitch detection • Adjustable reference pitch, A from 415 to 466 Hz • Two themes: Tuna and Aquarium • Calm and uncluttered — no accounts, no distractions • Free Allow the microphone, play a note, and tune.
Screenshots
Verdict
The clearest difference is update cadence: ChromoTune at every 3 weeks against PDF Compressor's every 2 months. PDF Compressor's advantage is iOS requirement (15.0 vs 17.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PDF Compressor ships an update every 2 months, ChromoTune every 3 weeks. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.
| Parameter | PDF Compressor | ChromoTune |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (866 ratings) — better | — |
| Positive reviews | 26.0% of reviews | — |
| Number of ratings | 866 — better | — |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 11 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Vishalbhai Vaghasiya | Thorbjørn Throndsen Bonvik |
Bugs and requests
PDF Compressor
Reported bugs
9 issues- App crashes on second compression attempt
- File size increases instead of decreasing
- App exits unexpectedly after compression
- Compressed file unrecognizable or corrupted
- Keyboard numbers display as blank
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- Slow compression times (5+ minutes for small files)
- Unable to save or retrieve compressed files
- Document pages expand instead of compress
- App crashes on launch
Requested features
5 requests- Reduce or eliminate advertisements
- Add compression quality/control settings
- Batch file compression capability
- Improved preview functionality for multiple documents
- Better file naming conventions for compressed files
ChromoTune
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PDF Compressor
No in-app purchases
ChromoTune
No in-app purchases
Questions
Is PDF Compressor free?
Is ChromoTune free?
Do PDF Compressor or ChromoTune have ads?
Which is updated more often, PDF Compressor or ChromoTune?
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