BookConvert vs video VS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BookConvert
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Easily convert your eBooks between almost any major format! How it works: 1. Select your eBook file. 2. Choose an output format (MOBI, EPUB, PDF, TXT, AZW3, etc.). 3. Tap convert, and your file will be ready in no time! 4. Once done, save, share, or open your eBook in your favorite reading app. Supported formats • Output formats: MOBI, EPUB, TCR, PDB, PDF, AZW3, LRF, FB2, LIT, TXT, RTF, OEB • Input formats: EPUB, MOBI, PDF, TXT, FB2, DOCX, AZW3, ZIP, DOC, HTML, and more Subscription & Renewal Terms 1. Once the subscription is confirmed, the payment will be charged to your Apple iTunes account. 2. The subscription will renew automatically unless you cancel at least 24 hours before the current period ends. 3. You can manage or cancel your subscription at any time: Go to App Store → Tap the Apple ID icon in the top right corner → Subscriptions → Select the subscription → Tap Cancel Subscription. Privacy Policy: https://tapaudio.github.io/privacy/bookconvert/en/ End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
video VS
Compare two video clips side-by-side, frame-by-frame, to analyze and improve your movements. Ideal for sports, fitness, and skill development, it allows detailed study of technique without switching between videos.
- Side-by-side or stacked clip display
- Frame-by-frame scrubbing with zoom
- Key moment synchronization
- Automatic saving of comparisons
- Full-screen detail view
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Put two clips side by side on one screen so you can study every move, frame by frame. What you can compare: • My move VS the coach's • Last time VS this time • Beta 1 VS Beta 2 • Day 1 VS now • Version A VS version B • Before VS after • Light weight VS heavy Record yourself, grab a reference, and compare the two on one screen — no more jumping back and forth between videos in your camera roll trying to catch the right frame. How video VS helps: • Both moves on one screen. Your clip and the reference, side by side or stacked. • Scrub frame by frame. A CapCut-style filmstrip under each clip with a fixed playhead — drag through time, pinch to zoom from the full clip down to a single second for the exact frame. • Zoom into the detail. Get in close on a foothold, a grip, a hand or hip position — tap to go full screen. • Line up the same move. Drop key moments on each clip (up to 10) and tap a number to jump both videos to the matching action instantly. • Pick up where you left off. Every comparison saves automatically; favorite the ones you study most. Climbing, bouldering, swimming, running, tennis, weightlifting, skating, golf — anywhere the same move shows up twice. compare your move, then improve
Screenshots
Verdict
The clearest difference is iOS requirement: BookConvert at 14.0 against video VS's 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. BookConvert sells 3 in-app purchases, starting at $0.99 per 7 days and video VS sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | BookConvert | video VS |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | — | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 泓 段 | 荣登 黄 |
In-app purchases
BookConvert
- BookConvert Subscribe Weekly$0.997 Days
- BookConvert Subscribe Monthly$1.991 Month
- BookConvert - Lifetime$9.99
video VS
- video VS Ultimate$1.99









