SignLang: ASL Fingerspelling

Type any word and watch it spelled out in the ASL hand alphabet. Browse all 26 letters, then test yourself in quiz mode. 100% offline, zero tracking, no account.

SignLang is a clean, offline reference and trainer for the American Sign Language (ASL) fingerspelling alphabet — built for anyone who wants to learn to spell with their hands.

Type any word and SignLang animates it letter by letter, showing the hand shape for each character A–Z. Slow it down, step through one letter at a time, or let it play hands-free. It's the fastest way to go from "I know a few letters" to spelling whole words.

Key features:

• Word animator — type any word and watch the ASL hand alphabet spell it out, one letter at a time, with a short description of each hand shape.

• Adjustable playback speed — from 0.5× for learning to 3× for review. Step forward and back manually, or play the whole sequence automatically.

• Browse mode — tap any of the 26 letters to see its hand shape and a plain-language description of how to form it.

• Quiz mode — a hand shape is shown and you name the letter. Build a streak as you get them right; one miss resets it. A simple, honest way to test recall.

• Comfortable to use — adjustable playback, optional hand-shape descriptions, haptic feedback, and Light / Dark / System appearance.

• Curated ASL learning links — quick access to trusted free references inside Settings.

Privacy by design: SignLang collects nothing. No analytics, no ads, no tracking, no account, no network calls. Everything runs on your device and works fully offline.

SignLang is for you if: • You're starting to learn ASL and want the fingerspelling alphabet at your fingertips. • You're a parent, teacher, or student who needs a quick hand-alphabet reference. • You want to practice spelling real words, not just isolated letters. • You care about a focused, ad-free app that respects your time and your data.

Note: SignLang teaches the manual fingerspelling alphabet (A–Z). It is a learning aid and reference, not a full ASL course or interpreter.