This app provides a high-fidelity music listening experience by directly accessing your personal music files stored on cloud services or local devices. It builds a comprehensive library, supports numerous audio formats, and offers detailed signal path analysis for audiophiles.
1.1
November 4, 2026
Isai Pro is now available as a Monthly or Yearly subscription, each starting with 7 days free, or as Lifetime, one payment that never renews. Already bought Isai Pro? It's Lifetime, and it stays yours for good. Nothing to switch, nothing to pay again. Subscribers can see when their plan renews, manage it from Settings โบ Pro, and switch to Lifetime at any time.
More$2.99
Mozart of Madras
Pure Music on iPhone Duo, and the Home Screen widgets.
No, Isai is completely ad-free, allowing for an uninterrupted listening experience.
Isai supports a wide range of formats including FLAC, ALAC, M4A, WAV, AIFF, MP3, AAC, Ogg Vorbis, Opus, DSF, and DFF (including DST).
Isai uses its own engine for DSD playback, outputting as DoP to compatible DACs or converting to PCM for other devices, ensuring high-quality reproduction.
Yes, Isai allows you to download music files for offline playback. Downloads can be managed to wait for Wi-Fi if preferred.
Isai syncs your library, playlists, favorites, and playback history across your Apple devices (iPhone, iPad, Mac, Apple TV) using iCloud.
The signal path analysis shows you exactly what happened to your audio file from source to output, including the decoder, any processing, and the device it went to, verifying bit-perfect playback when applicable.
Yes, two copies of Isai on the same Wi-Fi network can control each other, allowing you to stream music from your Mac to your phone, for example, with synchronized playback and queue.
Isai has an age rating of 4+, making it suitable for a wide range of users.
