アリかもね
時間は掛かるが一度に176本程の動画を問題無く変換出来た。
ただ問題点としては変換後のメニューが見づらく、ファイルに保存する前に自動で保存されたと思い込み、メニューを閉じてしまいそうになった。初回利用時は保存方法のチュートリアルを出して欲しい。
大体目を離して別作業してるので、変換完了の通知があると嬉しいかも

This app offers a suite of tools to edit, convert, and compress video, photo, and audio files directly on your device. It allows users to extract audio, create GIFs, trim videos, and adjust playback speed without uploading files to a server. Advanced features and an ad-free experience are available through a subscription.
1.8.0
November 2, 2026
What's new in v1.8.0 New - Reorder the buttons on Home however you like Improvements - Photos keep their date, location and other details after you change the format, shrink or rotate them ("Remove location" still removes them) - Converting photos at high quality no longer makes files too large - File sizes are now shown the same way throughout the app Fixes - During the first-time guide, the permission prompt no longer appears on top of the purchase screen
MoreNo ads, unlimited batches, custom quality.
Yes, the free version of oConvert contains advertisements. Users can remove ads by subscribing to the 'Family' plan.
oConvert offers a 'Family' plan with monthly ($2.99/P1M with a 7-day free trial) and yearly ($17.99/P1Y with a 7-day free trial) options. A one-time purchase option is also available for lifetime access.
You can manage or cancel your subscription anytime by going to Settings > Apple ID > Subscriptions on your iPhone. Payment is charged to your Apple ID and renews automatically unless turned off 24 hours before the current period ends.
oConvert is rated '4+' and is suitable for users aged 4 and older. All conversions happen on the device, ensuring user privacy as files are not uploaded to any servers.
The latest version of oConvert is 1.8.0, last updated on November 2, 2026. Updates typically include new features, bug fixes, and performance improvements.
oConvert is available on iPhone, iPad, and iPod. It is designed to work efficiently on these Apple devices.
Yes, oConvert performs all conversions directly on your device, meaning it works without an internet connection. This ensures fast processing and privacy as your files never leave your device.
The free version of oConvert shows ads and limits batch conversions to 3 files at a time. The Family plan offers an ad-free experience, unlimited batch conversions, and advanced quality/resolution settings.