sqsl Latch vs PenVox

sqsl Latch is a conceptual MIDI controller and sequencer designed for working with evolving drone, textural or soundscape synthesizer patches. It can send out MIDI notes, pitch bend and CC values. There are 16 groups split into 2 banks (a, b, c, … p). Groups have assignable MIDI channel, color and 8 Continuous Controllers (CC). When user touches one of the pads, note is activated and is held on until new touch (on the same pad) is registered. Left slider controls the velocity of note to be activated. Every group has a looper able to record note state changes - phrases. Order and velocity of recorded notes is automatically shuffled after phrase restarts (can be optionally prevented by activating group’s LOCK button).  Phrase playback speed is adjustable (CLOCK and DIVIDER parameters). Phrase can be synchronised - set to restart automatically with previous group's loop. Synchronisation can be set to happen on every pass, every second, third... up to 16th and can be set to be ignored randomly (probability setting 0-100%). Group parameters can be adjusted using sliders or modulated by internal randomiser with adjustable range (RANGE and RANGE 2 parameters) and speed (per group LAG control - left-most slider). Apart user definable CCs, each group has following MIDI parameters: MOD (mod wheel), BEND (pitch bend), VOL (volume), EXP (expression), PAN (pan), FOOT (foot controller), TOUCH (aftertouch/channel pressure). Group parameters related to phrase playback are: CLOCK (resolution and playback speed), SYNC with divider (loop synchronization), NOTE SKIP (randomly skipping notes events 0-100%), SYNC SKIP (randomly skipping sync events 0-100%), DIVIDE (integer group's CLOCK divider), LOOP (loop or one-shot setting), SHIFT (degree offset with selected scale). LAG can be applied to parameter changes - when new value is selected, change does not happen immediately but value is transitioned smoothly based on LAG time (left-most slider). Setup setting (CC numbers, channels, colors, and MIDI output) are saved and recalled when app is restarted. Loops, CC values, parameters and their modulation states can be written to preset positions for later recall. For detailed description visit https://www.seqsual.com/latch Important notes: - Latch does not make any sounds on its own, it generates MIDI messages (notes, pitchbend and CC values). - Latch does not synchronise to incoming external MIDI clock. - Latch was designed for full-size iPads and is not recommended for iPad Mini users.

PenVox is a songwriting studio built for people who take writing seriously. Write the lyrics, build the chords, record your ideas and finish songs in one focused app. WRITE WITHOUT FRICTION - Distraction-free lyrics editor with section headers ([Verse], [Chorus], [Bridge]) - Rhyme colors: words that rhyme share a color, so your rhyme scheme jumps off the page - Syllable counts beside every line, with a check against your first verse or chorus - Multiple versions per song — star the one you want to open - Auto-save as you type - Voice dictation for capturing lines on the fly - Notes panel for ideas and reminders - Word, line, and syllable counts WRITING TOOLS BUILT IN - Rhymes — perfect and near rhymes, right from your lyrics - Thesaurus — synonyms and related words - Dictionary — definitions, parts of speech, examples - Emotions — 12 categories to find the right feeling - Phrases — common songwriting hooks and patterns - AI Coach — brainstorm, revise, and break through blocks - Freestyle — random word generator with timer mode CHORDS - Chord projects for the music behind your lyrics - Tap chords in any key, with numbers, feel colors, and guitar and piano shapes - Ready-made progressions, or hum a melody and get chords that fit - Real instrument sounds, drums and bass, in simple rhythms or 41 styles, or make your own - Lyrics beside each section's chords, with Rhymes - Record over the chords and mix with levels, pan, reverb, delay and Tune - Export a chord sheet (PDF), MIDI, or the chords as audio SYNC, PERFORM AND SHARE - Sync Lyrics: tap along as each line is sung - Performance View: your lyrics full screen, in time with your track - Lyric videos for Reels, TikTok and Shorts - Share your lines as an image ORGANIZE YOUR CATALOG - Albums (a song can be in more than one), favorites, and custom sort order - Search across every lyric and title, and search your Recent songs - Grid and list views - Deadline tracking with days-left indicators - Tags for genre, BPM, and key RECORD AND LAYER AUDIO - Multi-track recording — stack up to 10 takes per song - Import audio from your device - Play All transport with 15-second seek - Loop any part of a track while you write - Rename, delete, and export individual tracks TUNER AND METRONOME - Chromatic tuner with cents-accurate pitch detection - Full metronome with time signatures, subdivisions, and multiple sounds - Practice Sets — build routines with multiple BPMs and durations - Save and recall metronome presets COLLABORATE - Write together, live: see each co-writer's cursor and name as they type - Invite co-writers with Editor, Viewer, or Commenter roles - Co-writers hear the song's audio tracks - Invite co-writers to chord projects - Share links for quick access - Share Calendars EXPORT - Export songs as PDF, HTML, plain text, or for DistroKid - Export your entire catalog at once Constant updates and improvements! PenVox also works on the web at penvox.app, so your songs travel with you. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/