PDF Compressor vs tomTrace
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Compressor
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Reduce PDF file size by up to 95% with PDF Compressor. Compress, merge, organize, and view PDF files in one simple app built for easy sharing, email attachments, cloud uploads, and storage. PDF Compressor helps you shrink large documents while keeping them clear and readable. Choose the right compression level for every file, from light optimization to maximum size reduction. Main Features • Compress PDF files quickly • Batch compress multiple PDF documents • Merge multiple PDF files into one • Merge and compress in one flow • Choose simple compression levels: light, balanced, strong, or maximum • Reduce scanned and image-heavy PDFs • Convert PDFs to grayscale for smaller files • Preview and view PDF documents in the app • Reorder selected files before merging • See before and after file sizes • Keep compression history available offline • Share optimized PDFs by email, messaging, cloud storage, or other apps For Work, Study, and Everyday Documents Use PDF Compressor for invoices, reports, contracts, forms, study notes, scanned documents, receipts, and any large PDF that needs to be easier to send or store. Fast, Private, and Simple Your files are processed securely and automatically deleted after processing. No account is required to start using the app. Subscription Details Subscription auto-renews unless canceled at least 24 hours before the end of the current period. You can cancel anytime in Settings. Payment is charged to your Apple ID upon confirmation. Support: support@pdfcompressor.cloud Privacy Policy: https://pdfcompressor.cloud/legal/privacy Terms (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
tomTrace
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tomTrace は、紙の書類をすばやく画像化できるシンプルな文書スキャナーです。 カメラ撮影または画像読込に対応し、必要な範囲を四隅で調整して切り出せます。 傾きや余白も手動で整えたうえで、補正なし・色くっきり・カラー文書・白黒から仕上がりを選べます。 保存形式は JPEG / PNG に対応しています。 保存先は「写真」または「Files」から選択できます。 主な機能 カメラ撮影 画像から読込 四隅・辺ハンドルによる範囲調整 文書向け画像補正 JPEG / PNG 書き出し 写真保存 / Files 保存 こんな用途におすすめ 講義資料の整理 研究メモの保存 紙の配布物の画像化 手書きメモの記録 ご注意 書類を撮影して取り込むためにカメラを使用します。 画像を読み込んで書類を補正するために写真ライブラリを使用します。 補正後の画像を写真ライブラリに保存するために使用します。
Screenshots
Verdict
The clearest difference is in-app purchases: tomTrace at none against PDF Compressor's 2. tomTrace also leads on update cadence (every 3 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
Both are free to download. PDF Compressor sells 2 in-app purchases, starting at $8.99 per month. tomTrace asks for nothing beyond the download.
PDF Compressor ships an update fortnightly, tomTrace every 3 days. The most recent releases landed on September 30, 2026 and September 9, 2026 respectively.
| Parameter | PDF Compressor | tomTrace |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.6 |
| Further details — not scored | ||
| Size | 48 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Soufiane Bouziane | Taro Tomura |
In-app purchases
PDF Compressor
- Monthly Subscription$8.991 Month
- Yearly Subscription$39.991 Year
tomTrace
No in-app purchases









