Have a question, found a bug, or want to suggest a feature? We read every message.
Email: support@keenshift.ai
How is my pronunciation scored? Lingo records your voice, compares its sound to a synthesized native reference on-device, and shows an approximate per-word heatmap and score. Nothing is uploaded.
Does it work offline? Yes. Practice and scoring run entirely on your iPhone, including on a flight or commute with no signal.
How do I cancel my subscription? iOS Settings → Apple ID → Subscriptions → Lingo → Cancel.
How do I restore a previous purchase? Settings tab in-app → Restore purchases.
How do I reset my progress? Settings tab in-app → Reset progress.
Lingo is local-first and never uploads your voice. See our Privacy Policy.