VU950 vs NOISE by Circles
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VU950
This app emulates the behavior of early digital samplers, focusing on sound shaping through intentional limitations and artifacts. It offers a full timestretch workflow, reduced bit depth processing, and MIDI control for a hands-on experience. Standalone mode includes multi-track sequencing, effects, and the ability to host other AUv3 apps.
- Classic sampler sound emulation
- Full timestretch workflow
- Reduced bit depth processing
- MIDI-controllable parameters
- Multi-track sequencing
- AUv3 hosting
- Built-in effects
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VU950 is not about realism. It is about behavior. Sound shaped by limits, gain interaction and audible artifacts — the same forces that defined early digital samplers. Draws inspiration from classic midi sequencers combined with samplers. Why it sounds the way it does Instead of emulating a single piece of hardware, VU950 recreates the way early samplers behaved internally. Resolution limits, imperfect filtering and non-linear stages are treated as musical decisions, not technical flaws. What shapes the sound VU950 sample rate: 7.5 kHz to 48 kHz Full timestretch workflow with classic hardware sampler tone Reduced bit depth processing for early-digital density User-adjustable anti-aliasing behavior Stereo signal path with selectable left or right input channel Dedicated input gain stage with drive and circuit bias Multiple filtering stages including bandwidth limitation Built-in low-pass filter for tone shaping Anti-aliasing tuned for musical artifacts, not transparency Non-linear processing across the entire signal path Output gain stage that affects tone and density, not just level MIDI-controllable parameters for hands-on workflow Maximum sample length: 63 seconds Truncate option to trim sample Precise mode for precise trimming on start and end screen One or eight voices of polyphony Precise start and end point control for trimming Chop function with selectable amount of slices And that was just VU950 AUv3 plugin. In Standalone: 8 tracks Support for hosting AUv3 apps to change VU950 sound engine to any sound You like. Build in multi sampler - VU20. Build in midi device - VUMIDI. Mixer with 4 inserts per track. 17 build in effects like filters, eq, compressors Possibility to use 4 AUv3 effects per channel Step Sequencer Piano Roll. Song Mode Live Mode Export wav with stems. Loading samples to build in turntable and record samples to VU950/VU20 or another AUv3 plugin with inputs Classic and modern UI template (Modern is fully customisable) In app purchases drumkits are downloadable after purchase (MPC60 drumkit for free) You can check also my another beatmaking app - VU202 - which is free and it is also a AUv3 instrument so You can use VU202 in VU950!
NOISE by Circles
Record sounds from your environment and transform them into playable instruments. Shape precise loops on the waveform and export high-quality audio files for use in music production software.
- 24-bit / 48 kHz microphone recording
- Direct waveform loop editing
- Eight-pad pitched instrument preview
- Major and minor scales with selectable root key
- One-shot and loop playback
- WAV file export
- iPhone to desktop workflow
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NOISE by Circles is a free sound-capture companion for musicians, producers, and sound designers. Turn sounds from the world around you into production-ready material for the NOISE desktop plugin or any DAW. Record a sound with your iPhone, shape precise loop regions directly on the waveform, and immediately explore the result as a playable eight-pad instrument. Choose a root key and scale, shift octaves, and switch between one-shot and looping playback while trying Hit, Hold, and Swell response shapes. When the sound is ready, export the complete recording or every loop region as clearly numbered 24-bit / 48 kHz WAV files. Optional boundary fades help avoid clicks, while the built-in 50 Hz high-pass option removes unwanted low-end rumble. Features: - 24-bit / 48 kHz microphone recording - Direct waveform loop editing - Multiple independent loop regions - Eight-pad pitched instrument preview - Major and minor scales with selectable root key - One-shot and loop playback - Hit, Hold, and Swell response shapes - Optional short boundary fades - Optional 50 Hz low-rumble filter - Clearly numbered WAV exports - Local recording library - System sharing for AirDrop, Files, and other destinations - A fast iPhone-to-NOISE desktop workflow Your recordings stay on your device unless you choose to share them.
Screenshots
Verdict
The clearest difference is price: NOISE by Circles at Free against VU950's $4.99. NOISE by Circles also leads on rating (5.0 vs 4.2) and in-app purchases (none vs 8). VU950's advantage is ratings volume (11 vs 1) and device support (3 vs 1). On ads 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
NOISE by Circles is free to download; VU950 costs $4.99 up front. VU950 sells 8 one-off in-app purchases. NOISE by Circles asks for nothing beyond the download.
NOISE by Circles holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: VU950 has 11 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | VU950 | NOISE by Circles |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.2 (11 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 11 — better | 1 |
| Update frequency | Every 2 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 189 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Dariusz Chynek | Circles Audio LLC |
In-app purchases
VU950
- EMAX drumkit$0.99
- S2400$0.99
- MPC2000$0.99
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- MPC2000 2$0.99
- MPC3000$0.99
- SP1200$0.99
- S900$0.99
- SP202$0.99
NOISE by Circles
No in-app purchases









