lfoch vs ChordLibre
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
lfoch
This app generates complex LFO waveforms with multiple outputs for creating "chase" effects. It offers two LFO generators with phase modulation, adjustable suboscillators, and waveform morphing. It can output MIDI control change values and sync to tempo.
- Dual LFO generators with phase/ring modulation
- Suboscillator modulation with waveform morphing
- Adjustable waveform rate, type, and range
- Output 1-16 MIDI control change values
- Tempo synchronization and AUv3 MIDI Effect support
- Two modes: 'perform' and 'edit'
- Randomize parameter values
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lfoch is an experimental LFO generator that can create "chase"-like effect with multiple outputs from a single complex waveform It features: - 2 LFO generators with phase modulation / ring modulation: - Each LFO generators contains 2 suboscillators; one suboscillator modulates phase of another - For each suboscillator you can set waveform rate, waveform type (with smooth morph between sine, triangle, sawtooth and square waveforms), nonlinear curve (for overdrive-like effect) and minimum/maximum range - The result waveform is a multiplication of two generated LFO waveforms - You can use 1..16 points from this waveform to output as MIDI control change values - You can toggle the "playback" (phase change) of each generator with I/II buttons - You can randomise parameter values with "dice" buttons - App has two modes for live usage - 'perform' mode has larger waveform view and some selected sliders (if any) - 'edit' mode contains all controls on one screen - Each generator can be synchronized to tempo. In this mode the "speed" value runs from 4 quarter forward to 4 quarter backwards speed, the fastest value in this mode is 1/32 - When running inside AUv3 host the app uses host's transport. - "free mode" setting allows you not to follow the host transport lfoch is a standalone app and an AUv3 MIDI Effect. AUv3 effect supports parameter automation and preset saving inside host. Standalone version currently does not output MIDI in background mode.Note for AUM users:This application starts with 16 control change outputs from CC 0 to 15 on MIDI channel 1. AUM has default mapping of the CC #7 (volume) for each channel. Please keep this in mind when setting it up together.
ChordLibre
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Transform your performance with ChordLibre – the free, essential PDF chord and sheetmusic manager designed for musicians who value simplicity, speed, and reliability. - Import chord sheets directly from Files, Mail, or other apps - Automatic filename parsing extracts song title and artist- - Quick metadata editing ensures accurate organisation Smart Organisation - Browse by title, artist, or recently opened - Build unlimited setlists for gigs, rehearsals, and teaching - Group songs into sets within each setlist for flexible performance planning Performance Mode - Full-screen PDF viewing optimised for musicians - Swipe smoothly between songs in a setlist - Keep the screen awake during performance - Clean, distraction-free interface for focus on the music Built for Musicians, by a Musician - Lightning-fast search and filtering across your library - Duplicate detection prevents clutter - Switch between grid or list views to suit your workflow - Context menus provide quick access to common song actions Extras - Smart tips banner with useful hints for new users - Optional one-time tip jar (£0.99) to remove hints and support development - Native iOS interface that feels fast and intuitive - Share files between devices via standard iOS methods ChordLibre is designed to support solo performers, bands, and music teachers who rely on chord sheets and lead sheets. It eliminates the need for paper binders and avoids the complexity of cloud-dependent systems. With local storage only, your music remains private, secure, and accessible wherever you take your iPad or iPhone. Ideal for guitarists, pianists, ukulele players, and any musician who works with chord-based material. No subscriptions No accounts required No cloud lock-in Just your music, your way. Perfect for: - Guitarists and pianists building setlists for gigs - Ukulele players learning new songs - Teachers managing chord sheets for lessons - Bands rehearsing with organised digital charts ChordLibre combines intelligent organisation with performance-ready reliability, ensuring your chord sheets are always available when you need them.
Screenshots
Verdict
The clearest difference is price: ChordLibre at Free against lfoch's $3.99. ChordLibre also leads on update cadence (every 2 months vs every 20 months). lfoch's advantage is in-app purchases (none vs 1) and device support (3 vs 1). On ads 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
ChordLibre is free to download; lfoch costs $3.99 up front. ChordLibre sells 1 one-off in-app purchase. lfoch asks for nothing beyond the download.
lfoch ships an update every 20 months, ChordLibre every 2 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.
| Parameter | lfoch | ChordLibre |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.4 (9 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 20 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 15.0 — better | 18.1 |
| Further details — not scored | ||
| Size | 8 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexey Nadzharov | Y McCabe-Costa |
In-app purchases
lfoch
No in-app purchases
ChordLibre
- ChordLibre Support Tip$0.99









