PatchLens vs SL Bass
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
PatchLens
Read full descriptionHide full description
Save synth and pedal settings from a photo, then add editable hotspots and recall notes. The demo and 3 patch records stay free; Pro Lifetime is a one-time unlock. PatchLens helps musicians capture hardware synth, pedal, and semi-modular settings as private local patch records. 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
SL Bass
Read full descriptionHide full description
SL Bass is a bass synth and 808 instrument for iPhone and iPad. Explore 146 factory presets and 102 bundled sample variants, then shape each sound with editable pitch and amplitude envelopes, mono and legato modes, glide, saturation and a playable keyboard. Use SL Bass as a standalone instrument or load it as an AUv3 in a compatible host such as GarageBand, Logic Pro for iPad, AUM or Cubasis. The interface adapts to compact iPhone and iPad windows while preserving direct touch control. Features: - 146 factory presets - 102 sample variants - Editable pitch and amplitude envelopes - Mono, legato and glide controls - Saturation and output control - Standalone app and AUv3 instrument - Local processing with no account or subscription SL Bass is an instrument and responds to MIDI notes. It does not process incoming audio as an effect. Support: support@sfoorlabs.com
Screenshots
Verdict
The clearest difference is price: PatchLens at Free against SL Bass's $14.99. SL Bass's advantage is in-app purchases (none vs 1) and iOS requirement (15.0 vs 17.0). On update cadence, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
PatchLens is free to download; SL Bass costs $14.99 up front. PatchLens sells 1 one-off in-app purchase. SL Bass asks for nothing beyond the download.
PatchLens ships an update weekly, SL Bass every 10 days. Both last shipped on October 31, 2026.
| Parameter | PatchLens | SL Bass |
|---|---|---|
| Price | Free โ better | $14.99 |
| Update frequency | Weekly โ better | Every 10 days |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad | iPhone, iPad, iPod โ better |
| Requires iOS | 17.0 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 7 MB | 99 MB |
| Age rating | 4+ | 4+ |
| Developer | Clashware Sร rl | VIACHESLAV ZHILTSOV |
In-app purchases
PatchLens
- Pro Lifetime$4.99
SL Bass
No in-app purchases








