Leah and IINA are both video players made for the Mac. IINA is free, open source and built on the mpv player, with many settings and plugins. Leah is a paid Mac App Store app built on Apple’s own video frameworks, made to be simple and to seek instantly.
| Leah | IINA | |
|---|---|---|
| Price | $9.99, once | Free |
| Source code | Closed | Open source (GPLv3) |
| Where to get it | Mac App Store | iina.io |
| Macs | Apple silicon, macOS 15 or later | Apple silicon with macOS 12 or later, Intel with macOS 11 or later |
| Built on | Apple’s AVFoundation and VideoToolbox, with Leah’s own MKV, TrueHD and DTS decoding | mpv |
| MKV and WebM | Yes | Yes |
| Blu-ray PGS and DVD VobSub subtitles | Yes | Yes |
| Dolby TrueHD | Up to 7.1, exactly as recorded | Yes |
| Formats beyond Leah’s list, such as Vorbis, VP8 and Xvid | No | Yes |
| Timeline preview | Yes | Yes |
| Picture in Picture | No | Yes |
| Plugins | No | Yes |
| Settings and customization | Few, by design | Many |
| Internet access | Never connects | Optional online features |
| Tracking | None | None |
| Languages | English | Many |
Leah plays MP4, MOV and M4V, and MKV and WebM files with H.264, HEVC, MPEG-2, MPEG-1, VP9 and AV1 video, Dolby TrueHD, Dolby Digital, Dolby Digital Plus, DTS, AAC, FLAC, Opus, Apple Lossless, PCM, MP3 and MP2 audio, and SRT, ASS/SSA, WebVTT, PGS and VobSub subtitles. See Formats Leah plays for the details, such as which Macs play VP9 and AV1.
IINA plays the formats mpv supports, which is a wider list.
Leah is on the Mac App Store. See also Leah vs VLC and the Leah FAQ.
IINA details are from iina.io as of October 2026.