# Trinity \| Audio Mastering — 3-Band Mastering Solution

> Integrated audio mastering solution with reference track comparison and advanced processing tools. (iPhone/iPad app by Alexander Ewering.)

- Source: https://appshunter.io/ios/app/trinity-audio-mastering/id6444727870 (this page in markdown: same URL + `.md`)
- Developer: [Alexander Ewering](https://appshunter.io/developer/1743777532)
- Category: Music, Utilities
- Price: $19.99
- Rating: 4.30/5 from 14 App Store ratings · 15 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.2 · 3 MB
- Languages: American English
- Released: 2023-01-01
- Data updated: 2026-08-28
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/trinity-audio-mastering/id6444727870/reviews.md

## What is Trinity | Audio Mastering?

Trinity is an effective integrated mastering solution for digital music production enthusiasts & professionals, containing a set of precisely matched and fine-tuned creative tools for achieving the desired sound and loudness.

Focused on a reference-based mastering workflow, Trinity lets you work with an optional reference track whose sound you want to achieve, using a flexible spectrum analyzer to aid in comparing and matching.

All controls and sliders are fine-tuned for ease of use, appropriate sensitivity and defaults, making adjustments easy and efficient. Everything is available on a single screen without any distracting menu-diving.

44.1, 48 and 96 kHz sample rates are supported, as well as the following audio file types for import: WAV, MP3, AIFF, MP4, AAC, ALAC (Apple Lossless). Note that very long audio files (> 20 minutes) are not supported.

For a detailed guide on how to use Trinity, please visit our website!

REFERENCE-BASED MASTERING:

- In addition to the raw input audio file, another (professionally produced) track can be loaded as a reference
- Easy and immediate switching between both tracks for comparison and adjusting the app's controls to attain the desired sound
- Seek bars with waveform previews and one-click seeking
- One-click section looping for focusing on a certain part of the track

SPECTRUM ANALYSIS:

- High-resolution and responsive FFT averaging frequency analyzer
- Differential Spectrum feature can show the spectral differences between input and reference track for visual matching
- Adjustable response time (averaging)
- Precise Full-resolution or Smooth Half Octave Averaged display

EQUALIZATION:

- Transparent Low-Cut Filter with adjustable cutoff frequency and 12 or 24 dB/octave slope
- High-Shelving EQ with either a gentle characteristic or a steeper 12 dB/octave slope and variable gain and frequency for fine-tuning brilliance
- Up to three freely adjustable general-purpose peaking EQs
- Visualization of overall response curve

MULTIBAND DYNAMICS:

- Three frequency bands with adjustable crossover frequencies
- Two selectable crossover types (custom-designed, smooth Trinity crossover or more surgical phase-corrected 24 dB/oct Linkwitz-Riley (LR4) crossover)
- Ratio, Attack, Knee, Release and Gain controls per band
- Global "Compress" control and per-band Density control with intelligent make-up gain replace the traditional "Threshold" controls for easier operation
- Precise gain reduction meters
- The compressor section's response can optionally be included in the spectrum response curve display
- Solo toggles to isolate bands for precise tuning

NORMALIZATION: 

- Automatic base normalization of input file
- Two realtime normalizers (pre- and post multiband section) with optional analog saturation for transient cleanup, additional loudness maximization or sound shaping

MULTIBAND STEREO PROCESSING:

- Simple but effective Three-Band Stereo Width (M/S) controls from Mono to Extra-Wide
- Fine-tuned with love, individually per band, for keeping perceived loudness and giving useful results
- Basic Goniometer (Phase Scope)

WAVESHAPER:

- Optional Wave Shaping with five selectable algorithms
- HQ toggle for High-Quality Oversampling

LIMITER / CLIPPER:

- Either a look-ahead brickwall limiter or a hard clipper can be used in the final stage depending on taste
- Adjustable Attack and Release
- Adjustable output ceiling from -2 to 0 dBFS

METERING:

- Responsive and accurate stereo output meters
- RMS or LUFS (Momentary, Short Term, Integrated) metering
- PEAK metering always shown simultaneously
- Normalizers with accurate saturation / clip indication

EXPORT:

- Export as 16/24-bit standard or 32-bit float WAV file
- Optional rectangular dithering

NOTE: Trinity currently does not support running in the background, so your audio will stop as soon as you leave the app or lock the device. This might change in a future update.

## Key features

- Reference-based mastering workflow
- Flexible spectrum analyzer
- 3-band multiband dynamics
- Transparent equalization tools
- Realtime normalizers with analog saturation
- Three-band stereo width control

## Recent user reviews (10 of 15)

All indexed reviews: https://appshunter.io/ios/app/trinity-audio-mastering/id6444727870/reviews.md

### 5/5 — Amazing

*2026-04-22*

Realised I didn't need a full blown DAW, but I did want a way to effectively master the finished mix. This works so well and you get great results.

### 5/5 — Good

*2026-04-11*

This is very good and has helped me a lot in shaping my music. One thing I do find strange. I cannot find it in my app list in settings on my Ipad?

### 1/5 — No sound

*2025-10-16*

No sound on iOS 26. I unfortunately had to cancel my purchase.

### 1/5 — No sound

*2025-10-12*

Strange: no sound through my iPad speakers, or my nice universal audio usb-c interface volt 276, which works with other apps. The volume is up ;) EDIT: in case it’s related, I just updated to iOS 26

Another issue is that when switching apps and back, the UI takes half the screen (even if the trinity app window is itself full screen)

### 5/5 — Indispensable

*2025-09-30*

I can’t tell you how much angst and frustration this app has saved me. After months of using on-line mastering and never achieving the results I was looking for this app came to the rescue. It’s given me the confidence to trust my ears and I love it. Worth every penny. Thank you!

### 1/5 — Crash upon loading files

*2025-08-27*

Won’t even let me work on audio tracks because it crashed as soon as a load. Wasted money unfortunately

### 5/5 — 10x better than any AI mastering service!

*2025-05-17*

I've never left an app review before and have owned Trinity for less than hour—but wow!

It does exactly what you need that other mobile apps don't, and it's immediately easy to use for anyone remotely familiar with music production.

Hands down the best mobile mastering app, and leagues better than any of the cloud-based AI mastering services I've tried.

It's honestly competitive with Ozone for desktop but way easier to use.

Already up to speed, in love, and sad I'm just now discovering.

### 5/5 — A Cool Diamond In The Sea

*2024-12-10*

Attention all musical maestros and tone-deaf troubadours! 🎵🎧

Are you tired of spending more time mastering your tracks than it takes to microwave a burrito? Fear not, for the audio gods have bestowed upon us a miraculous app that'll make your tunes sparkle faster than you can say "auto-tune"!

Here's the lowdown on this sonic sorcery:

1. Grab a song that already sounds like it's been kissed by the audio angels. 😇 

2. Toss in your raw, unpolished musical gem.

3. Hit a play button and count to 30 (or less if you're feeling impatient).
4. Voila! Your track now sounds like it was produced by a Grammy-winning wizard.

It's so easy, even your grandma could do it while knitting a sweater! This app is the audio equivalent of finding a unicorn riding a rainbow – it's that magical and rare.

But wait, there's more! We've got a tiny request for the genius developers behind this auditory alchemy:

Hey, app wizards! How about tossing in a few pre-mastered tracks as freebies? That way, us mere mortals can start polishing our sonic diamonds right out of the gate. We know you've got some audio gold hidden in your digital vaults – share the wealth, pretty please! 😉

With this app, you'll be churning out chart-toppers faster than you can say "one-hit wonder." So grab it now and turn your bedroom recordings into stadium-worthy anthems! 🎸🚀

### 5/5 — Just Wow!

*2024-11-20*

You build a track and think, well, this sounds pretty good. Then you bring it into Trinity and suddenly there are a dozen ways to make it sound better! Short learning curve, great manual. Don’t hesitate.

### 5/5 — A great way to master your tracks!

*2024-10-03*

TLDR - Great app - A gem in the app store.

I bought this app yesterday and for me, a person who never has had a need to master a track and that also has ADHD and gets distracted/overwhelmed easily, having to leave the DAW and focus on mastering is low-key my favorite feature.

In a way it reminds of when I discovered iA Writer - (Lord, 10+ years ago.. wow. Time sure does fly) with the app dedicated to focus on writing, style, prose, with tools to push being better at the craft. All while seemingly at first glance simple but truthfully incredibly intuitive and clearly well designed and throughly thought through (say THAT 7 time fast lol)

The reference style approach is clutch. I'm newish to music so I had only heard in passing about referencing and this not only gave me the tools to do that efficiently on iOS, but is pushing me to want to finish tracks I can feel comfortable in releasing.

The panel is a nice, subtle touch, but I'm a sucker for skeuomorphism so I could be biased.
The incredible detailed manual is very welcome (Is there a PDF I could download that I missed?)

## Frequently asked questions about Trinity | Audio Mastering

### What is Trinity?

Trinity is an integrated audio mastering solution designed for digital music production. It provides tools for achieving desired sound and loudness, including reference-based mastering and advanced audio processing.

### Does Trinity have ads?

No, Trinity is ad-free. It is a paid application, offering an uninterrupted mastering experience.

### What audio file types does Trinity support?

Trinity supports WAV, MP3, AIFF, MP4, AAC, and ALAC (Apple Lossless) for import. Note that very long audio files (over 20 minutes) are not supported.

### What sample rates are supported by Trinity?

Trinity supports 44.1, 48, and 96 kHz sample rates for audio processing.

### How does Trinity's reference-based mastering work?

Trinity allows you to load a reference track to guide your mastering process. You can easily switch between your track and the reference, using the spectrum analyzer to compare and match the sound.

### What are the equalization features in Trinity?

Trinity includes a transparent Low-Cut Filter, a High-Shelving EQ, and up to three adjustable peaking EQs. It also visualizes the overall response curve.

### What devices is Trinity available on?

Trinity is available on Mac, iPhone, and iPad, supporting a range of Apple devices.

### How often is Trinity updated?

Trinity was last updated on April 14, 2023, with version 1.6. This indicates a relatively recent update, suggesting ongoing development and support.

## Version history (last 5 releases)

### 1.6 — 2023-04-14

IMPROVEMENTS:

- The project sample rate can now be changed at any time, even with an input file already loaded.

FIXES:

- Fix too short or too long export when project sample rate is changed with loaded input file.
- Fix crash when trying to export with an empty filename.

### 1.5 — 2023-04-01

IMPROVEMENTS:

- Spectrum: The dB grid is now always kept centered on small screens when scrolling horizontally.
- Optimized help texts.

FIXES:

- Fix empty "ghost" spectrum appearing when scrolling the spectrum before playing a track.

### 1.4 — 2023-03-29

NEW:

- Trinity is now available for iPhone, including all of its features and boasting an amazingly efficient user interface for effortless and professional mastering in the palm of your hand!

IMPROVEMENTS:

- iPad: Support for Split View, Slide Over and Stage Manager.
- Seamless looping: Clicking the "Loop" button when a file is not playing will now seamlessly loop the entire file.

### 1.3 — 2023-01-18

NEW:

- Trinity is now also available as a macOS App on the App Store!

IMPROVEMENTS:

- Export: The location where to save the exported audio can now be chosen.
- The "Output" slider now only goes up to +6 dB when in "Clip" mode, for finer adjustments.
- Player won't fade in if playback is started near the beginning.
- Loading "Compression" or "Stereo" partial presets is now smoother (no clicking).
- The spectrum analyzer's background now accurately reflects the effect of the "Solo" toggles of the multiband section.
- Minor user interface refinements.
- Slightly increased font size.

FIXES:

- Base normalization of input file was sometimes not applied.

### 1.2 — 2023-01-07

IMPROVEMENTS:

- Make the multiband section slightly taller on larger screens for more precise adjustments.
- Extend the range of the "Output" slider to -6 dB so it can also be used to reduce (instead of boost) the final loudness.
- The "Normalize / Clip" and "Output" sliders now also allow precise value entry (tap the slider to enter a value).
- Significantly faster export.
- Improved mouse / trackpad support.

FIXES:

- Fix export not working when a file with the same name already exists.

MISCELLANEOUS:

- Minor user interface tweaks.

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## More apps by Alexander Ewering

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- [Xequence AU \| Pads](https://appshunter.io/ios/app/xequence-au-pads/id1453556216)
- [Xequence 2](https://appshunter.io/ios/app/xequence-2/id1464669442)

All apps by Alexander Ewering: https://appshunter.io/developer/1743777532

## Related topics

[ewers](https://appshunter.io/ios/topics/ewers) · [audio mastering](https://appshunter.io/ios/topics/audio-mastering)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*