DE Flow

DE Flow makes German come alive — as sound. Built for A1 learners, the app transforms word order, verb conjugation, and grammatical gender into an audiovisual experience powered by a real-time synthesizer engine.

SYNTAX SEQUENCER
Build German sentences by dragging word blocks into a sequencer strip. Each word type has its own synth voice — nouns sound different from verbs, articles from adjectives. Correct sentences play as consonant melodies; mistakes trigger dissonance — tritone shifts, microtonal jitter, noise bursts. You hear the error before you read the explanation.

INTELLIGENT FEEDBACK
The Interference Radar detects errors rooted in your native language (English or Traditional Chinese) and shows targeted contrastive tips. Word order mistakes get dynamic, context-specific feedback: the app names the exact words you misplaced and explains the rule with your own sentence.

GENUS COLOR SYSTEM
Every noun is color-coded by grammatical gender — Electric Blue (der), Neon Pink (die), Radioactive Green (das) — reinforced by distinct synth tones so you learn gender through both sight and sound.

WORD TYPE SONIFICATION
Nine word types — noun, verb, adjective, adverb, preposition, conjunction, pronoun, particle, number — each mapped to a unique waveform, frequency, and neon color. A live oscilloscope visualizes the audio in real time on vocabulary cards and during sentence playback.

AMBIENT LEARNING
Six generative ambient tracks in the tradition of Berlin School electronic music accompany your study sessions — warm pads, slow arpeggios, and pulsing bass layers that keep you focused without distraction.

THREE SPEECH MODES
Choose how vocabulary is spoken: Standard (clear TTS), Analog-Signal (genus tone + warm-filtered speech + echo cascade), or Synthwave-Echo (clear voice + filtered delay).

NERD MODE
A retro control console with ~34 tweakable parameters: filter cutoffs, ADSR envelopes, mix levels, speech processing — all visualized through rotary knobs, faders, and VU meters. Hit RND to generate random settings and hear the result instantly. Reset to curated defaults at any time.

WHAT'S INSIDE
- 3 free lessons to get started — unlock all 15 with a single purchase
- Syntax exercises, vocabulary cards, grammar explanations
- Composita Builder with English language parallels (handbag = hand + bag ↔ die Handtasche)
- XP system,