S vs P252 MDN Diode
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
S
This semi-modular synthesizer app for iPad offers a hands-on sound design experience with a single-screen interface for intuitive patching. It delivers a warm, vintage sound inspired by 1970s synthesizers, featuring dual oscillators, resonant filters, and multiple modulation sources.
- Single-screen interface
- Fast, hands-on patching
- Vintage 1970s synth sound
- Dual oscillators
- Resonant ladder filter
- Multiple modulation sources
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S-Modular is a semi-modular synthesiser for iPad, designed for fast, hands-on patching without clutter. Everything is presented on a single screen, making sound design immediate and intuitive. Simply drag from one jack to another to create connections. S-Modular delivers a distinctive vintage sound inspired by classic 1970s synthesis — warm, rich, and full of character. Features Dual oscillators 24 dB/oct ladder filter Resonant high-pass and low-pass filters Two LFOs Four-step CV sequencer Four-track mixer Audio and CV splitter Two AHR envelope generators Delay effect
P252 MDN Diode
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P252 MDN Diode is a germanium diode bridge compressor created by Pulsar Modular and Marc Daniel Nelson. Nearly two years in the making, it delivers the weight, movement and harmonic character of the rare germanium diode-bridge design - now on your iPhone and iPad. Use it as an AUv3 plug-in in your favorite host (Logic Pro, GarageBand, AUM, Cubasis and more) or as a standalone app processing live sound from your microphone. KEY FEATURES: - Germanium diode bridge compression with program-dependent behavior - RESPONSE TIME and RELEASE controls tuned for musical timing - Ratios from gentle 2:1 up to Limit, plus Linear mode - FF / FB sidechain topology switch - External sidechain input (AUv3) - STOCK / DRIVE transformer voicings and NORM / HEFT weight modes - AIR switch and 3-way analog noise floor - MATCH gain matching for honest A/B decisions - A/B compare with copy, MOD and oversampling - Simpson-style VU metering (RMS in/out) plus dual gain reduction meters - Touch-friendly "Link Threshold & Trim Out" and "Link Trim In & Out" gain staging - Full preset manager with folders, favorites, import and export - Parameter automation in AUv3 hosts Audio is processed entirely on your device - no account, no data collection, no internet connection required.
Screenshots
Verdict
The clearest difference is price: S at $2.99 against P252 MDN Diode's $19.99. S also leads on chart position (#184 vs unranked). On ads, in-app purchases, 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
S costs $2.99 and P252 MDN Diode $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | S | P252 MDN Diode |
|---|---|---|
| Price | $2.99 — better | $19.99 |
| Rating | 2.6 (11 ratings) — better | — |
| Positive reviews | 31.3% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 7 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #184 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Paul Betowski | Pulsar Modular |
In-app purchases
S
No in-app purchases
P252 MDN Diode
No in-app purchases









