The best mastering apps take your finished mix and turn it into a balanced, competitively loud final track — ready for streaming, sharing or release — straight from your phone or tablet. Some do it automatically by analysing your song; others give you a manual chain of EQ, compression and limiting. The right one depends on how hands-on you want to be.
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Quick answer
For automatic, beginner-friendly mastering, BandLab’s built-in mastering tool (iOS and Android) is the easiest starting point. For manual control, a DAW master chain in Cubasis (iOS) or FL Studio Mobile (iOS and Android), or AUv3 mastering plugins hosted in AUM (iOS), gives you full hands-on power. Many AUv3 mastering and limiter plugins are iOS only.
Automatic vs manual mastering apps
There are two clear approaches, and good apps cover one or both:
- Automatic mastering analyses your track and applies EQ, compression and loudness for you. It’s fast, requires no mastering knowledge, and gets beginners a solid result quickly.
- Manual mastering puts EQ, compression and a limiter on your master channel so you control every move. It takes more skill but gives you full creative control.
Beginners should start automatic and learn the manual approach over time. Our walkthrough on how to master a song on your phone teaches the manual steps.
What to look for in a mastering app
- A limiter with clear input/output control for setting loudness without clipping.
- Master EQ for gentle tonal balance across the whole song.
- Loudness metering (LUFS) so you can hit streaming-friendly targets — see LUFS explained.
- Reference comparison to A/B your master against a commercial track.
- High-quality export to WAV and high-bitrate files.
- AUv3 support (iOS): to host third-party mastering plugins. See what AUv3 apps are.
Platform matters
Many dedicated mastering and limiter plugins on mobile are iOS/iPadOS only, and the AUv3 plugin ecosystem is an Apple feature. Android users typically master inside FL Studio Mobile, n-Track Studio or via BandLab’s automatic mastering. If you’re choosing a device, see iPhone vs Android for music production.
The best mastering apps
BandLab mastering (iOS and Android) — best automatic option
BandLab includes a built-in automatic mastering feature that analyses your track and applies a polished master with selectable styles. Free, cross-platform and beginner-friendly — the easiest way to master a first song. See how to use BandLab.
Best for: beginners and anyone on iOS or Android who wants a free, one-tap AI master. If you want more advanced AI mastering with finer control, LANDR and eMastered are popular paid services in the same space.
Cubasis (iOS and Android) — best manual control
A full DAW where you build a master chain with channel EQ, compression, a limiter and AUv3 plugins. The most flexible, desktop-like mastering environment on a tablet.
Best for: producers who want to master by ear with a full chain of EQ, compression and limiting, ideally on a larger iPad screen.
FL Studio Mobile (iOS and Android) — best cross-platform manual route
Lets you place EQ, compression and limiting on the master track on both platforms, so you can mix and master in one project. See how to use FL Studio Mobile.
Best for: producers on iOS or Android who already build tracks in FL Studio Mobile and want to finish the master in the same project.
AUM with AUv3 plugins (iOS/iPadOS only) — best pro setup
AUM hosts dedicated AUv3 mastering, EQ, compression and limiter plugins with flexible routing and metering — the choice for producers who want studio-grade control on iOS. See how to use AUM.
Best for: experienced iOS users chasing studio-grade results. Final Touch is a popular dedicated iOS mastering app you can run here or standalone for a guided, multi-stage chain.
n-Track Studio (iOS and Android) — solid built-in tools
Includes master-bus effects and metering on both platforms, making it a capable all-in-one for recording, mixing and mastering without leaving the app.
Best for: iOS or Android users who want to record, mix and master in one app, with a free tier to try the master-bus tools first.
Understanding loudness and why it matters
The single most important mastering decision on mobile is how loud to make your track — and the instinct to make it as loud as possible is usually wrong. Streaming platforms normalise playback to a target loudness, turning loud masters down so they don’t actually play louder than anyone else. What an over-compressed, brick-walled master loses is punch, depth and dynamics — the very things that make a track feel alive. A good mastering app gives you loudness (LUFS) metering so you can aim for a sensible, dynamic level rather than chasing peaks. Our guide to LUFS and how loud your master should be lays out the targets, and our overview of what mastering is sets the wider context.
Why mastering can’t fix a weak mix
It’s worth being clear about what mastering can and can’t do. Mastering applies broad, gentle processing to the whole song — small EQ moves, light compression, loudness. It cannot separate a buried vocal, fix a clashing arrangement, or rescue a muddy low end, because those problems live in the balance between tracks, which a stereo master can’t reach into. If your master needs heavy correction, the answer is to go back and fix the mix. Start from a clean, balanced mix with headroom and the mastering stage becomes the quick polish it’s meant to be. See how to mix a song on your phone for the stage that has to come first.
Reference tracks: your most useful tool
Whatever app you use, master against a reference — a commercial track in your style that you know sounds good. Import it (or play it alongside), match the rough volume, and A/B your master against it. This instantly reveals whether your low end is too heavy, your highs too dull, or your loudness off. An app with a built-in reference feature makes this easier, but you can do it manually in any DAW. Referencing keeps your ears honest and stops you over-processing in isolation.
How to choose
Pick on experience and platform. If you’re new, start with BandLab’s automatic mastering and a reference track — you’ll get a good result fast and learn what a finished master sounds like. As your ears develop, move to a manual chain in Cubasis or FL Studio Mobile for full control. Apple users get the deepest options through AUv3 plugins in AUM. Whatever you choose, don’t over-limit: a balanced, dynamic master beats a crushed loud one, especially since streaming normalises loudness. The technique guide in how to master a song on your phone will get the most out of any of these, and how to export a song from a music app covers the final file settings.
Export settings that matter
A great master is wasted if you export it badly. When you bounce the final file, keep these in mind:
- Keep a WAV master at the project’s sample rate as your highest-quality copy, and create high-bitrate versions from it for sharing.
- Leave a touch of peak headroom so the file never clips, which can cause distortion on some playback systems.
- Don’t master twice: upload the master, not a master of a master — re-processing an already-finished track degrades it.
- Match the platform: different services have their own loudness handling, so a sensible, dynamic master travels well across all of them.
A good mastering app makes these straightforward. Our guide to how to export a song from a music app walks through the options on each platform.
How much should you rely on automatic mastering?
Automatic mastering has come a long way and gives beginners a genuinely useful result with no skill required. It’s a great way to get a finished track out and to learn what a polished master sounds like. The trade-off is control: an algorithm makes broad decisions that may not suit every song, and it can’t respond to the specific intent behind your mix. As your ears develop, you’ll start to hear where you’d make different choices — that’s the moment to move to a manual chain. Many producers keep both in their toolkit: automatic for quick turnarounds and demos, manual for releases they care about.
Frequently asked questions
Is automatic mastering good enough for release?
For many tracks, yes. Automatic mastering produces a clean, competitive result and is a great fit for beginners and quick turnarounds. As you improve, manual mastering gives more control over the final sound.
Can I master in the same app I used to mix?
Yes. DAWs like Cubasis, FL Studio Mobile and n-Track let you add a master chain to the same project. Some producers prefer a separate app or fresh session for perspective, but it isn’t required.
What’s the most important tool in a mastering app?
The limiter, because it sets loudness while preventing clipping, paired with loudness (LUFS) metering so you hit a sensible streaming level rather than over-compressing.
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