Helium AUv3 MIDI Sequencer vs Score Reader Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Helium AUv3 MIDI Sequencer
This app is a powerful MIDI sequencer designed for music production. It allows users to create and arrange complex musical pieces with multiple tracks, extensive clip libraries, and advanced looping features. Easily organize and import MIDI data to build songs efficiently.
- 16 Tracks per instance
- Over 7000 MIDI clips library
- Media Bay for organizing clips
- Remote Looping functionality
- Song Mode for arranging sections
- Full CC controller editing
- Sync to Host
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Helium is a lightweight AUv3 MIDI sequencer plugin designed specifically for AUM. It supports up to 16 tracks of unlimited length with the ability to direct output to 16 channels on up to 16 MIDI output ports. One of the great features is the ability to import and maintain libraries of MIDI clips using Helium's 'Media Bay'. These clips are freely available all over the internet and may contain individual chord sets, chord progressions or drum tracks. You can quickly build a song by dragging and dropping your MIDI clips from the media bay onto your timeline. You can also save your own clips directly to the media bay to create your own personal MIDI clips libraries. Long press on a clip to preview its contents using the currently selected MIDI device. Helium now ships with a library of over 7000 MIDI clips, consisting of every chord and chord progression you could ever need. Helium allows many different ways to import additional MIDI clip libraries. Simply drag and drop your ZIP collections directly to your PC/MAC web browser and they are automatically unpacked into the clips library folder. You can also drag and drop files between the Media Bay and the iOS Files app. Helium supports a sync mode called 'Remote Looping'. This was something we recently introduced into our MultiTrack Recorder plugin and is very useful for breaking down the timeline into sections. You can define up to 12 loops which can be used to specify the locations of say the intro, verse, chorus, and outro within your song, then trigger these loops seemlessly in sync with the host tempo. Once captured, these loops can then be triggered by incoming MIDI notes. A new addition to Helium is the ability to piece together loops into songs, so you just concentrate on creating a single verse, chorus, bridge etc. and piece everything together without the headache of having to re-arrange your timeline. Features ○ 16 Tracks per instance. ○ Includes a library of over 7000 MIDI clips. ○ Assignable MIDI channel and Bus per track. ○ Full editing of CC controllers using the controller lane. ○ Independent vertical and horizontal zooming. ○ Import & Export MIDI tracks. ○ Media Bay, organize your MIDI flips libraries. ○ Clip Preview from Media Bay ○ Drag and Drop from the Media Bay directly to the timeline. ○ Drag and Drop to Files App. ○ Remote Control with Looping advanced functionality. ○ Step Recording. ○ Build in Mixer to adjust relative track levels with Mute/Solo. ○ Sync to Host. ○ Up to 16 outputs (configurable). ○ MIDI Clip Preview ○ Ghost Note Feature ○ Multi level undo and redo. ○ Song Mode ○ Multi-Take Record Please checkout the help manual for details on where to find my tutorial videos on Helium and where to download some fully featured and free MIDI clip libraries. This is not recommended to use on small iPhone screen sizes such as the SE models. You can adjust the screen scaling to suite your iPhone model by long pressing the MENU button and changing the scale.
Score Reader Pro
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Reading orchestral or band scores to an advanced level takes years to master. With so many instruments and their specific clefs and transpositions, it’s not straightforward to identify what the notes actually are! This app helps to speed up that process by training you to read music in various clefs and transpositions. - Intended for music students, conductors, composers and anybody who wants to get quicker at sight reading scores - Choose from over 100 instruments to train with - many with configurable transposition options - Use the ‘learning’ mode to see how written notes translate to sounding notes, and then test yourself by transposing randomly generated notes - Supports 4 clefs, double flats/sharps, and key signatures with up to 7 flats/sharps - Includes options to set instrument ranges, and the training session length - See how much you’ve improved on the detailed session history page - Includes guidance on the fundamentals of reading transposing instruments - Supports dark and light themes
Screenshots
Verdict
The clearest difference is price: Score Reader Pro at $0.99 against Helium AUv3 MIDI Sequencer's $14.99. Helium AUv3 MIDI Sequencer's advantage is update cadence (fortnightly vs every 4 months) and iOS requirement (13.0 vs 16.3). On ads, in-app purchases and device support 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
Helium AUv3 MIDI Sequencer costs $14.99 and Score Reader Pro $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Helium AUv3 MIDI Sequencer ships an update fortnightly, Score Reader Pro every 4 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.
| Parameter | Helium AUv3 MIDI Sequencer | Score Reader Pro |
|---|---|---|
| Price | $14.99 | $0.99 — better |
| Rating | 4.3 (55 ratings) — better | — |
| Positive reviews | 74.5% of reviews | — |
| Number of ratings | 55 — better | — |
| Update frequency | Fortnightly — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.3 |
| Further details — not scored | ||
| Size | 84 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 4Pockets.com | Matt Welch |
Bugs and requests
Helium AUv3 MIDI Sequencer
Reported bugs
12 issues- Notes get stuck
- Randomization causes crashes
- MIDI out channels not visible in AUM
- App crashes frequently
- MIDI import mixes tracks
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- Notes lag when dragging
- Grid looks off relative to piano roll
- Sustain pedal causes issues
- Exported MIDI files inaccessible
- Song mode does not follow host tempo
- Inconsistent behavior with loops in song mode
- Loop button issue on empty instance reload
Requested features
15 requests- Scale key and random velocity
- Arpeggios patterns
- More gradual randomization approach
- Scissor tool for shortening MIDI events
- Latch option for press/hold to audition MIDI sequences
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- Patterns view like Atom
- Tutorial on using chord track
- Aftertouch recording
- Time stretch feature
- Higher automation window setting
- Turning off quantization
- Individual loop lengths for tracks
- More ghost tracks visible and colored
- Looping sequences of different lengths (workaround exists)
- MIDI channel switching controlled by AU Param
Score Reader Pro
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Helium AUv3 MIDI Sequencer
No in-app purchases
Score Reader Pro
No in-app purchases
Questions
Is Helium AUv3 MIDI Sequencer free?
Is Score Reader Pro free?
Do Helium AUv3 MIDI Sequencer or Score Reader Pro have ads?
Which is updated more often, Helium AUv3 MIDI Sequencer or Score Reader Pro?
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