LogSynth vs RiffAlly Chord Explorer
Price, ratings, monetisation and update history for both apps, side by side β 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 β 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 β no watered-down mobile version, no feature gating between standalone and plugin modes.
RiffAlly Chord Explorer
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Explore guitar chords, hear their voicings, and see how individual notes move. RiffAlly Chord Explorer is the new name for RiffAlly Harmony. Your favorites, recent chords, tuning, and fretboard appearance stay with the same app. CHORD ATLAS β’ Explore 372 chord and root combinations across 31 chord colors β’ Search by chord symbol, musical feeling, or compatible scale β’ See intervals inside guitar shapes and compare generated voicings β’ Hear the selected chord and save favorites VOICING PATH β’ Begin with your Atlas chord and build a longer progression without a four-chord limit β’ Hear three suggestions before choosing the next chord, or choose any chord yourself β’ Compare a suggestion with your previous chord without leaving the chooser β’ Choose a suggestion key without changing the chords already in your Path β’ Change, remove, and reorder chords while keeping at least one β’ Follow note movement across guitar strings in a scrollable grid β’ Play the whole path with tempo and loop controls, or audition one chord β’ Look for a short βLeads back toβ¦β note on a suitable suggestion for supported starting chords Path drafts remain available while you explore the app, but are not saved across app termination. CHORD MORPH β’ Start with your actual Atlas chord, grip, and tuning β’ Choose a sounding tone and explore named alternatives β’ Compare before and after, or hear the change β’ See which string positions change and which stay in place Morph shapes show the musical change; comfortable reach and fingerings are not guaranteed. BUILT FOR GUITAR Choose Standard, half-step down, Drop D, Drop C, DADGAD, Open D, or Open G tuning. Select Light Maple, Medium Walnut, or Dark Ebony fretboards in Information & Support. Core chord exploration and synthesized audio work on your device without an account. The app has no advertising and collects no data. The in-app guide explains the controls, and Information & Support connects you to the RiffAlly family, feedback, sharing, and optional tips. Tips unlock nothing; Apple handles payment.
Screenshots
Verdict
The clearest difference is price: RiffAlly Chord Explorer at Free against LogSynth's $9.99. RiffAlly Chord Explorer also leads on update cadence (weekly vs every 2 weeks). LogSynth's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
RiffAlly Chord Explorer is free to download; LogSynth costs $9.99 up front. RiffAlly Chord Explorer sells 3 one-off in-app purchases. LogSynth asks for nothing beyond the download.
LogSynth ships an update every 2 weeks, RiffAlly Chord Explorer weekly. The most recent releases landed on October 31, 2026 and October 26, 2026 respectively.
| Parameter | LogSynth | RiffAlly Chord Explorer |
|---|---|---|
| Price | $9.99 | Free β better |
| Update frequency | Every 2 weeks | Weekly β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad β better | iPhone |
| Requires iOS | 18.0 | 17.0 β better |
| Further details β not scored | ||
| Size | 22 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | SEAN IAN HALENWOOD | Fernando Lanner Cardoso |
In-app purchases
LogSynth
No in-app purchases
RiffAlly Chord Explorer
- Small Tip$1.99
- Supporter Tip$4.99
- Generous Tip$9.99
Questions
Is LogSynth free?
Is RiffAlly Chord Explorer free?
Do LogSynth or RiffAlly Chord Explorer have ads?
Which is updated more often, LogSynth or RiffAlly Chord Explorer?
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