Bicep Heart AI turns a single adult portrait into a short video using a fixed bicep-heart pose guide and movement prompt. Users can preview their selected photo locally before starting generation. The web tool supports English and Chinese, uses one credit per generation attempt, and offers completed MP4 downloads. One-time credit packs cost $9.99 for one attempt, $24.99 for three, or $49.99 for seven. There is no subscription or free generation trial. The motion is preset rather than controlled by a custom prompt or reference video; face details, hands and the heart shape can vary.