Muzio I Music Player & MP3 App

by Red Sky Labs

3.6 2M+ reviews
136M+ Installs
04/14/2016 Released
Muzio I Music Player & MP3 App icon
Muzio I Music Player & MP3 App icon
Music & Audio

Muzio I Music Player & MP3 App

by Red Sky Labs

3.6 2M+ reviews
136M+ Installs
04/14/2016 Released
Muzio I Music Player & MP3 App screenshot 1
Muzio I Music Player & MP3 App screenshot 2
Muzio I Music Player & MP3 App screenshot 3
Muzio I Music Player & MP3 App screenshot 4
Muzio I Music Player & MP3 App screenshot 5
Muzio I Music Player & MP3 App screenshot 6

Ratings Breakdown

3.6 ★★★★★ 2M+ ratings
5 57%
4 6%
3 3%
2 4%
1 30%

Data from Google Play at the time of writing.

What Muzio Player Offers Offline Music Fans

Muzio I Music Player & MP3 App is a local, offline-only audio player built for people who still keep large MP3, FLAC, WAV, or APE libraries on their phone rather than relying purely on streaming. It organizes tracks by album, artist, genre, folder, or custom playlist, and adds extras like a 5-band equalizer with bass boost and 3D reverb, a built-in MP3 cutter for making ringtones, a tag editor, sleep timer, lyrics support, and over 30 themes. It’s aimed squarely at users who want a Google Play Music or default-player replacement with more visual customization and deeper library control.

Where It Genuinely Impresses

The reason so many people stuck with this app for years comes through clearly in user feedback: it handles massive libraries well, with one long-term user specifically noting it could build playlists over 1,000 songs when their Samsung player couldn’t. Reviewers also praised the clean, ad-light experience it used to offer, describing it as ‘perfect’ with ‘no ads and overall no issues’ in earlier versions, and several say they liked it enough to pay for the lifetime ad-free unlock. The equalizer, theming options, and folder-based browsing are the features people mention sticking around for.

The Permissions and Ads Problem

The most serious complaints center on a shift in behavior after updates. Multiple users report the app now requests access to phone call logs just to keep functioning, with one calling it a dealbreaker after years of loyal use. Others describe the app hooking into phone call events specifically, triggering pop-ups, ads, or random song playback right after hanging up a call, which feels invasive for what should be a purely offline music tool. These aren’t isolated one-off complaints; they show up repeatedly among the most-upvoted reviews.

Ad and Subscription Fatigue

Beyond permissions, the dominant theme in negative reviews is aggressive monetization creep. Users describe needing to tap ‘x’ three separate times just to reach the player after being hit with subscription pop-ups back-to-back, ads that can’t be skipped without force-closing the app, and full paywalls appearing on launch. Several reviewers explicitly say they went from rating the app 5 stars to 1 star once this started, and describe the badgering as constant rather than occasional. For an app once loved specifically for being ad-light, this reversal is the biggest trust-breaker in the feedback.

Final Verdict on Whether to Install It

Muzio still has real technical strengths for offline playback, large libraries, and audio customization, and that’s why it built such a large install base. But current user sentiment suggests the experience has degraded through call-log permission requests and increasingly aggressive ad and subscription prompts that interrupt basic playback. If you have a big offline library and don’t mind uninstalling if things go south, it’s worth trying since it’s free to start. If you’ve been burned by bait-and-switch monetization before, go in cautious and watch permission prompts closely before committing to the paid lifetime tier.

Pros

  • Handles very large music libraries well
  • Detailed 5-band equalizer with bass boost
  • 30+ themes for visual customization
  • Built-in MP3 cutter for ringtones
  • Supports many audio formats including FLAC

Cons

  • Requests phone call log access
  • Frequent ads and subscription pop-ups
  • Behavior tied to phone calls annoys users

What Real Users Say

Jonathan Mills 1/5

“Downloaded and started using this because it allowed me to create playlists over 1k songs (which Samsung player strangely was unable to do) and liked it enough to purchase the lifetime ad-free version. Loved it until a recent update now forces the app to have access to phone logs in order to use it. WHY?! You're a music player, not…”

👍 977 found this helpfulDeveloper responded
Hansum Squidward 1/5

“3/27/21 needed a replacement for google play music and this is way better. 02/25 Update: When I first found this app it was perfect. No ads and overall no issues. They've decide to bombard people with ads now, its ridiculous. When the change first happened, it was fine. A single ad that you could x out of immediately would pop…”

👍 409 found this helpful
CR 1/5

“Been using for years and all of a sudden, I'll open the app and it's a pop up for the subscription and I click exit than another pop up pertaining to something else than something else pops up so that's 3 times I gotta click the "x" to get to the music player. I can't deal with this anymore so…”

👍 400 found this helpful

Reviews sourced from Google Play, selected by helpfulness at the time of writing.

App Info & Permissions

Developer Red Sky Labs
Content rating Everyone
Contains ads Yes
In-app purchases $0.99 - $49.99 per item
Installs 136M+
Released 04/14/2016
Price Free

Permissions this app requests

📍 Location Approximate location (network-based); precise location (GPS and network-based)
🖼️ Photos/Media/Files Read the contents of your USB storage; modify or delete the contents of your USB storage
💾 Storage Read the contents of your USB storage; modify or delete the contents of your USB storage
📶 Wi-Fi connection information View Wi-Fi connections

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Frequently Asked Questions

1

What is Muzio I Music Player & MP3 App?

It's an offline-only music and MP3 player app from Red Sky Labs that plays local audio files in formats like MP3, FLAC, WAV, and AAC. It includes an equalizer, ringtone maker, tag editor, themes, and playlist tools for organizing a personal music library. It does not stream or download music from the internet, focusing entirely on files already stored on your device.

2

Is Muzio Player free to use?

Yes, the app is free to download and use, with a lifetime ad-free upgrade available as a one-time purchase. However, multiple long-term users report that ads and subscription prompts have become much more frequent and harder to dismiss in recent updates, even for some who already paid. Expect to encounter pop-ups unless you buy the ad-free version, and even then results vary based on recent reviews.

3

Why is Muzio asking for phone call log permissions?

Some users report that recent updates began requiring access to phone logs to keep the app functioning normally. This is not explained in the app's official description and has caused frustration among users who expected a purely offline music player. If this concerns you, review the app's permission requests carefully before granting access.

4

Does Muzio work well with large music libraries?

Yes, this is one of its most praised strengths. At least one reviewer specifically noted it could build playlists exceeding 1,000 songs when their phone's default Samsung player could not handle the same task. If you have a sizable offline collection, this is one of the app's clearest practical advantages.

5

Are there ongoing problems with ads in Muzio?

Multiple recent reviews describe a sharp increase in ads and subscription pop-ups, with some users needing to dismiss several pop-ups in a row just to reach the music player. Others mention ads or random song playback triggered right after ending a phone call. This marks a significant change from the app's earlier reputation as a clean, low-ad experience.