Transposer Pro vs SimplEQ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Transposer Pro
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This app is designed to show how a note written for a given instrument (e.g. a Clarinet in Bb) would be written on another instrument (e.g. a Horn in F). - Intended for music students, conductors, composers and anybody who wants to get quicker at reading scores - Choose from over 100 instruments to transpose - many with configurable keys and clefs - Use the slider to interactively see the result of the transposition - Includes info on instrument ranges and transposition properties - Supports 4 clefs (automatically selected based on instrument conventions and register) - Includes guidance on the fundamentals of reading transposing instruments - Supports dark and light themes
SimplEQ
This audio effect plugin offers a streamlined approach to sound sculpting, perfect for quick adjustments without overwhelming complexity. It provides broad tonal shaping capabilities with interactive frequency bands, ideal for fast mixing and mastering tasks.
- Standalone or AUv3 compatible
- Simple, broad EQ adjustments
- Interactive, overlapping frequency bands
- +/-6dB cut/boost per band
- Adjustable output gain trim
- CPU-friendly design
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SimplEQ Processor Plugin (AUv3) SimplEQ is an audio effect plugin that can run standalone, or in any AU compatible host application such as Logic Pro or GarageBand. To configure audio settings in standalone mode, tap the Settings button. Please note that the input will be muted by default to avoid nasty feedback! Overview SimplEQ is a very simple EQ - the clue is in the title! For those times when you don't need "surgical precision" and seemingly endless parameter options to tweak, SimplEQ might be just the thing for "broader brushstroke" EQ tweaks. SimplEQ is also very kind to your CPU. The frequency bands have been tuned so that they overlap and interact slightly, giving a surprisingly flexible range of tonal sculpting. Whether you're doing a quick rock mix master, or simply want to warm-up or add presence to a track, SimplEQ might get you there - fast and simple! For a super-simple lightweight "mastering suite" you could partner SimplEQ with the LevLr2 dynamics processor. Controls Active - Toggles the EQ On or Off. You can use this control to A/B your settings with the original signal and this will fade gradually between the two with no distracting pops or clicks! Each of the frequency bands can be cut or boosted by +/-6dB and because they overlap, they are very interactive, so use your ears, and dial-in to taste! Sub - Adjusts extremely low frequencies centred around 50Hz. Bass - Adjusts low frequencies centred around 100Hz. Lo Mid - Adjusts low midrange frequencies centred around 250Hz. Hi Mid - Adjusts high midrange frequencies centred around 1KHz. Treble - Adjusts high frequencies centred around 5KHz. Presence - Adjusts very high frequencies centred around 10KHz. Out - Applies a final stage gain trim to the output at the very end of the internal signal chain, between -24dB and +6dB. For more info and support please visit: www.waverley-instruments.com/robjackson
Screenshots
Verdict
The clearest difference is update cadence: SimplEQ at every 2 months against Transposer Pro's every 11 months. SimplEQ also leads on device support (4 vs 2) and iOS requirement (12.0 vs 16.3). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Transposer Pro costs $0.99 and SimplEQ $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Transposer Pro ships an update every 11 months, SimplEQ every 2 months. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.
| Parameter | Transposer Pro | SimplEQ |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 11 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 16.3 | 12.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Matt Welch | Rob Jackson |
In-app purchases
Transposer Pro
No in-app purchases
SimplEQ
No in-app purchases









