8 vs Evil Otto
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
8
Create fast 8-bit and electronic music with this step sequencer. Program drums and melodies, arrange song structures with custom playback flows, and export your audio. Use it as an AUv3 instrument in compatible hosts.
- Step sequencer for drums and melodies
- Customizable playback flows for song structure
- AUv3 instrument extension
- Save and export audio
- One-tap randomization for idea sketching
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Whether you are exploring chiptune for the first time or quickly capturing a retro electronic idea, 8-bit Music Master offers a straightforward, lightweight workflow. In the standalone app, program drums, Melody 1, and Melody 2 one step at a time. Switch octave ranges, reveal semitone notes, or use random generation as a starting point, then edit every note and hit yourself. Custom playback flows let you arrange the page order and repeat count of each part separately, turning short patterns into longer sections. Save your projects and export a finished mix, MIDI file, or separate stems for further production and sharing. Four AUv3 plugins are included: • Chip Synth — retro waveforms, presets, arpeggiation, sound shaping, and step sequencing • Six-Voice Drum Machine — kick, snare, closed and open hats, clap, and tom, with swing, presets, and a host-synced 16-step pattern sequencer • 8-bit FX — bit-depth and sample-rate reduction, drive, digital noise, stereo width, and tempo-synced delay • Chip Seq MIDI — a host-synced 16-step MIDI generator with pitch, velocity, gate, length, and swing controls Use the suite in compatible hosts such as Loopy Pro. The instruments and audio effect can also run in GarageBand; Chip Seq MIDI requires a host that supports AUv3 MIDI routing. The app is designed to help you begin quickly while leaving every pattern open for hands-on editing, so generated ideas can still become your own.
Evil Otto
This audio effect applies simultaneous upward and downward compression across three frequency bands for detailed sound. It offers precise control over audio dynamics and includes features like sidechain input and real-time metering.
- Three-band OTT compression
- Precise control parameters
- Sidechain input for rhythmic effects
- Real-time metering per band
- Factory and user presets
- Cross-platform preset compatibility
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Evil Otto is a multiband OTT (Over-The-Top) compressor that applies simultaneous upward and downward compression across three frequency bands. The result is dense, hyper-detailed audio where peaks are controlled and quiet details are pushed forward — a sound heard across modern electronic music, pop, and hip-hop production. Features -- Three-Band OTT Compression Evil Otto splits your signal into low, mid, and high frequency bands and applies independent upward and downward compression to each. Quiet details come up, peaks come down, and each band can be tuned separately. -- Precise Control Without Complexity Fifteen parameters give you everything you need and nothing you don't: Depth, Time, independent Down and Up amounts, per-band thresholds, per-band output levels, and input/output gain. -- Sidechain Input Route an external signal to duck the compressed output for rhythmic pumping effects. A dedicated Listen mode lets you monitor the sidechain signal to verify routing. -- Real-Time Metering Nine meters show input levels, gain reduction, and output levels per band. The center meters display both downward compression and upward expansion relative to the threshold, so you can see exactly what the compressor is doing. -- Factory Presets Includes a library of starting points across a range of applications. Save and recall your own presets with the built-in preset browser. -- Cross-Platform Compatible User presets created on iOS work on macOS, Windows, and Linux. Sessions created in GarageBand or Logic on iOS will open the desktop version on macOS.
Screenshots
Verdict
The clearest difference is rating: 8 at 5.0 against Evil Otto's 4.5. 8 also leads on review sentiment (67% vs 50%) and price ($1.99 vs $4.99). Evil Otto's advantage is iOS requirement (12.0 vs 17.6). On ratings volume, ads, in-app purchases and monetization model 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
8 costs $1.99 and Evil Otto $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
8 holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 4 respectively. Written reviews point the same way: 67% of 8's written reviews are positive against 50% of Evil Otto's.
| Parameter | 8 | Evil Otto |
|---|---|---|
| Price | $1.99 — better | $4.99 |
| Rating | 5.0 (4 ratings) — better | 4.5 (4 ratings) |
| Positive reviews | 66.7% of reviews — better | 50.0% of reviews |
| Number of ratings | 4 | 4 |
| Update frequency | Every 4 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #191 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | 宁 徐 | Audio Damage, Inc. |
Customer experience
8
Evil Otto
In-app purchases
8
No in-app purchases
Evil Otto
No in-app purchases








