Fluss vs Guitar Analyzer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fluss
Explore granular synthesis with a tactile interface. Import, record, or live-process audio to create unique sound textures, drones, and echoes. Features kinetic sliders for dynamic modulation and a unique shimmer feedback effect.
- Granular synthesis engine
- Import, record, or live process audio
- Kinetic sliders for modulation
- Shimmer feedback effect
- MIDI playable
- Oberheim Xpander inspired filter
- Microtonal experiment support
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Fluss is a sonic playground designed by Bram Bos and Berlin-based musician Hainbach to let you explore granular synthesis in a hands-on way. The playful touch UI invites anything from live performance, experimentation to learning and mastering the granular concept. Multiple plugins: Import, Record or Live Process You can import your own WAVs (standalone & AUv3 Instrument plugin), Record audio (Record effect plugin) or live-process sound (Process effect plugin) to create anything from drones and granular echoes to moving microtonal audio textures. Designed for touch: Kinetic Sliders All sliders and XY pads are linked to a physics model which lets you flick and throw them around. Minimise the friction for endless bouncing motion, as an innovative substitute for traditional LFOs and modulation. There was never a better reason for using a touchscreen for music. Shimmer Feedback effect Like a shimmer reverb, except it feeds the processed audio back into the grain engine. This lets you create an endless loop of pitch-shifting spaciousness, turning even the simplest of sounds into massive woolly mammoths. - 3 Voice grain engine, each with an independent playhead - Playable via MIDI (since version 1.1) - Filter inspired by the Oberheim Xpander, including its resonant Phase filter - Kinetic sliders and pads for playful interaction with the sound - Universal design (iPhone and iPad; iPad Air 2 or higher recommended) - Custom scales, unquantised mode and even Scala-import for microtonal experiments - Use WAVs (or other audio files), record audio or load the app as a live-processing audio effect - Real world tested as an instrument in numerous live performances by Hainbach - Offers light mode and dark mode UI
Guitar Analyzer
This app provides advanced tools for guitarists, including a highly accurate tuner, sound analysis with visual graphs, and a sustain meter. It helps identify fret defects, nut placement issues, and dead notes by analyzing sound across the fretboard.
- Accurate guitar tuner
- Automatic scale tuner
- Sound analyzer with visual graphs
- Sustain meter
- Custom sound oscillator
- Guitar brand selection
- Multiple string tuning options
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The Guitar Analyzer app is a tool for analyzing and fine-tuning your acoustic or electric guitar: - A highly accurate guitar tuner with a cent scale indicator - An automatic scale tuner for all strings - A sound analyzer with multiple types of visual graphs for both the entire fretboard and individual strings - A sustain meter with sustain measurement by duration and factor - A dual custom sound oscillator for certain tasks where you need to hear the resonant frequency of an object or the beats between two specified frequencies - Conveniently select from over 50 well-known guitar brands to create your own list of guitars to explore and quickly switch between them - Choose from three string tunings (standard 6-string guitar, standard 4-string bass, and custom tuning for up to 12 strings in any key from 127 MIDI keys across the entire octave range) - Adjustable microphone sensitivity, noise threshold, and a choice between 2 types of amplitude analysis (peak and RMS) With this app, you can accurately tune your guitar, adjust the scale, and even choose the best guitar from several. By recording the sound across all frets for each string, you can use the displayed graphs to identify fret defects or nut placement, see unevenness in the sound in different places, see where the problem might be by changing the pitch shift of the frets, find the "dead note" and its position on the fretboard, as well as the resonant frequency of the instrument
Screenshots
Verdict
The clearest difference is rating: Fluss at 4.8 against Guitar Analyzer's 4.0. Fluss also leads on price ($13.99 vs $19.99) and ratings volume (71 vs 1). Guitar Analyzer's advantage is update cadence (weekly vs every 3 months). On 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
Fluss costs $13.99 and Guitar Analyzer $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Fluss holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Fluss has 71 ratings behind it against 1, so its average is the more settled of the two.
Fluss ships an update every 3 months, Guitar Analyzer weekly. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.
| Parameter | Fluss | Guitar Analyzer |
|---|---|---|
| Price | $13.99 — better | $19.99 |
| Rating | 4.8 (71 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 78.0% of reviews | — |
| Number of ratings | 71 — better | 1 |
| Update frequency | Every 3 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12 — better | 17.6 |
| Further details — not scored | ||
| Size | 453 MB | 8 MB |
| Age rating | 4+ | 9+ |
| Developer | Bram Bos | Oleg Levkutnik |
Bugs and requests
Fluss
Reported bugs
4 issues- Crashes with black screen
- No audible output
- App resets when put in background
- Cyan play head difficult to see on waveform
Requested features
20 requests- Adjustable layer field per grain
- Record from internal microphone
- More control over grain direction
- BPM settings
- Transition from clean to new sounds
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- AUv3 plugin version
- Scan speed multiplier (x2, x4)
- Draw lines on pitch XY pad
- Lock oscillators on pitch XY pad
- Assign play heads triggered by external controller
- Snapshots for pitch section
- More clock and tempo syncing options
- Visualization of buffer, playback head speed, modulation
- Quantizer visualization
- User-changeable pitch XY pad layout
- Global friction and separate sensitivity option
- Modulation to specific play head
- Proper sampling button (microphone access)
- Preset browser arrows
- More control over panning, filter, scan speed
Guitar Analyzer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Fluss
No in-app purchases
Guitar Analyzer
No in-app purchases









