LogSynth vs SL Tymra
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LogSynth
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LogSynth is a polyphonic virtual-analog synthesizer built for people who care what's actually happening in the signal path, not just what the preset browser looks like. Every voice runs five anti-aliased oscillators (sine, triangle, saw, pulse with PWM, and a band-limited impulse train) plus a dedicated sub-oscillator and noise source, mixed per-voice with independent amp envelopes. Chunky oscillators, crisp effects and a zero-delay-feedback state-variable filter — switchable low/high/bandpass. The drive effect is powered by a physically modeled diode circuit, numerically integrated rather than a lookup-table approximation, so pushing it into saturation behaves the way an actual analog drive would. FEATURES - 8-voice polyphony, 5 oscillators + sub + noise per voice - Zero-delay-feedback state-variable filter with resonant feedback and diode drive saturation - 5 independent oscillator envelopes plus a dedicated filter envelope - 2 assignable LFOs and an 8-slot modulation matrix - Built-in chorus, delay, FDN reverb, and 4-mode distortion - 41 factory presets across Bass, Lead, Pluck, and Effects - One-tap patch randomizer with adjustable intensity - Real-time oscilloscope, on-screen keyboard, and CoreMIDI input - Runs standalone or as an AUv3 instrument inside AU hosts Whether you're sound designing from scratch or dropping it into a DAW as a plugin, Logsynth gives you the same engine everywhere — no watered-down mobile version, no feature gating between standalone and plugin modes.
SL Tymra
This app offers a versatile two-layer keyboard instrument combining sampled sounds and synthesis. Explore a vast library of instruments, customize their parameters, and add effects. It supports MIDI input and can be used as a standalone app or an AUv3 instrument.
- Two-layer keyboard instrument
- Sampled instruments and synthesis
- 448 sounds in 15 categories
- Adjustable sound parameters (attack, release, cutoff, resonance)
- Chorus, delay, and reverb effects
- Mono, Legato, and Glide support
- AI Match sound search
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SL Tymra combines sampled instruments and synthesis in a two-layer keyboard instrument. The included library has 448 sounds in 15 categories, including pianos, organs, basses, leads, pads, strings, winds, mallets, plucks and textures. Set the source, octave and level of each layer, then blend them. Adjust attack, release, cutoff and resonance. Add chorus, delay and reverb. Mono and Legato support connected lead and bass lines. Glide controls the pitch transition between notes, from 0 to 500 ms. Browse by name or category, mark favourites and save edited sounds. AI Match searches the included bank locally using the sound character you select. It works offline. Play the on-screen keyboard or connect MIDI. Use Tymra on its own or as an AUv3 instrument in a compatible host. iPhone and iPad support portrait and landscape layouts. The library is included. No subscription, additional sound-pack purchase or account is required. The Mac edition is sold separately.
Screenshots
Verdict
The clearest difference is price: LogSynth at $9.99 against SL Tymra's $19.99. SL Tymra's advantage is iOS requirement (15.0 vs 18.0). On ads, in-app purchases and device support 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
LogSynth costs $9.99 and SL Tymra $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | LogSynth | SL Tymra |
|---|---|---|
| Price | $9.99 — better | $19.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 22 MB | 665 MB |
| Age rating | 4+ | 4+ |
| Developer | SEAN IAN HALENWOOD | VIACHESLAV ZHILTSOV |
In-app purchases
LogSynth
No in-app purchases
SL Tymra
No in-app purchases









