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 allows you to convert video files to audio formats like MP3 and WAV, and also supports image conversions. It processes all files directly on your device for speed and privacy, with no limits on usage. Options are available to remove ads permanently or temporarily.
1.4.0
September 13, 2026
What's new in v1.4.0 Improvements - Minor UI improvements - Various small bug fixes
MoreRemove all ads and unlock all Pro features.
$5.99
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oConvert supports a wide range of video formats including MP4, MOV, MKV, AVI, and WebM. For audio, it handles MP3, WAV, M4A, FLAC, AAC, and OGG. It also converts images like JPG, PNG, WebP, HEIC, GIF, BMP, and DNG.
Yes, oConvert contains advertisements. You can choose to watch a single ad to hide ads for one hour, or purchase the 'Remove Ads' option for permanent ad removal.
All conversions are processed directly on your device, meaning your private data never leaves your phone. This ensures total privacy and security for your files.
Yes, oConvert offers batch conversion, allowing you to convert large groups of files simultaneously with a single tap. This feature significantly speeds up the conversion process for multiple items.
The core functionality of oConvert is free to use forever, with no daily caps or file count restrictions. You can convert as much as you need without limitations.
oConvert Pro is a subscription that hides all advertisements and unlocks Pro-only features, such as advanced conversion settings. It offers a 7-day free trial for new users.
The app was last updated on September 13, 2026, indicating regular maintenance and potential feature additions. The latest version is 1.4.0.
oConvert is available for iPhone, iPad, and iPod devices. It is rated for ages 4 and up.