PatchLens vs NOISE by Circles
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PatchLens
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Never lose a great patch again. Photograph your synth, pedal, or semi-modular rig, mark the knobs and jacks that matter, and recall the exact sound in seconds. The demo and 3 patch records stay free; Pro Lifetime is a one-time unlock. Every musician knows the feeling: you spend an hour dialing in the perfect sound, move on, and can never quite find it again. PatchLens turns that moment into a permanent, searchable record: take a photo, tap the knobs and jacks that matter, add the values and notes that made it work, and it's yours forever. Take or import a photo, mark the knobs and jacks that matter, add values and notes, then search your local patch library later. Optional on-device text recognition can suggest visible panel labels, but you stay in control of every saved value. PatchLens does not require an account, does not upload your photos, and does not promise automatic universal knob or cable detection. Pro Lifetime is a one-time in-app purchase that unlocks the full local patch library, on-device OCR label assist, and recall-sheet sharing. The bundled demo and 3 patch records stay free. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://bonega.ai/patchlens/privacy
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 in-app purchases: NOISE by Circles at none against PatchLens's 1. On price, ads, device support and iOS requirement 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
Both are free to download. PatchLens sells 1 one-off in-app purchase. NOISE by Circles asks for nothing beyond the download.
| Parameter | PatchLens | NOISE by Circles |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 10 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Clashware Sàrl | Circles Audio LLC |
In-app purchases
PatchLens
- Pro Lifetime$4.99
NOISE by Circles
No in-app purchases









