VideoDuck vs PDF Diet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VideoDuck
This app helps you shrink video file sizes to free up storage space on your device. It offers fast, offline compression without subscriptions or internet connection, allowing for quicker sharing. You can choose custom quality levels and compress multiple videos at once.
- Compress videos instantly
- Free up storage space
- Offline operation
- Faster sharing
- Batch compression
- Custom quality levels
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VideoDuck – Video Compressor & Space Saver Meet VideoDuck, your friendly video compressor that keeps your iPhone fast, light, and free – no subscriptions, no ads, no internet needed. Shrink clips. Free up space. Share faster. VideoDuck compresses videos right on your iPhone using Apple Silicon's hardware encoder. Everything stays private – no uploads, no waiting, no data used. Free, forever • Compress any video with one tap – keep the moment, lose the megabytes • See exactly how much space you freed, every time • 100% on-device – works offline, private by design • Share faster – smaller files fly through AirDrop, messages, and mail • Your originals are always safe – you choose what to keep VideoDuck Pro – one-time unlock, never a subscription • High & Low quality modes – you pick the balance between quality and size • Batch compression – shrink your whole camera roll at once, resumes if interrupted • Advanced controls – resolution cap, frame rate, format Free to use. One payment to unlock everything. Nothing to cancel – ever. Your pocket supercomputer Compression runs entirely on your iPhone – no servers, no cloud, no queue. It's not just fast, it's private by design. Quack. Compress. Done. Free your phone from heavy videos in one tap – your iPhone deserves to breathe again. Download VideoDuck and make space for what matters.
PDF Diet
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Shrink a PDF before you email it or upload it from your iPhone or iPad. Open a scanned form, a report with photos, or another large PDF from Files. PDF Diet compresses it right on your device, so you can work offline. Find the right file size Choose Light, Medium, High, or Strong. Check the file size for each preset and compare the original and compressed pages in a synchronized preview. See what changed before you share. Keep documents readable PDF Diet checks what’s inside the document. On supported PDFs, it can recompress embedded images while keeping text and vector graphics sharp. Results depend on what’s in the file. Clean up a copy Delete unwanted pages or choose which details to remove, including author metadata, comments, bookmarks, attachments, and links. Save to Files or share Export a separate copy and keep your original intact. Save the result to Files or send it through the share sheet with Mail, Messages, or AirDrop.
Screenshots
Verdict
The clearest difference is price: VideoDuck at Free against PDF Diet's $1.99. VideoDuck also leads on update cadence (daily vs every 10 days). PDF Diet's advantage is in-app purchases (none vs 1). On 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
VideoDuck is free to download; PDF Diet costs $1.99 up front. VideoDuck sells 1 one-off in-app purchase. PDF Diet asks for nothing beyond the download.
VideoDuck ships an update daily, PDF Diet every 10 days. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.
| Parameter | VideoDuck | PDF Diet |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.5 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Daily — better | Every 10 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.0 | 17.1 — better |
| Further details — not scored | ||
| Size | 2 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Davyd Horhiashvili | Artem Svitelskyi |
In-app purchases
VideoDuck
- VideoDuck Pro Lifetime$7.99
PDF Diet
No in-app purchases









