ReplyAssistant

ReplyAssistant is a content writing tool. An iOS custom keyboard that generates tone-adjusted replies and runs reusable writing prompts (grammar, formatting, translation, emojification) inside any app. Also works through an in-app generator and an iOS share sheet action.

ReplyAssistant is a custom iOS keyboard that puts a set of OpenAI-powered writing and reply tools directly into the text field you are already typing in. Rather than switching to a separate chatbot app, you install the keyboard, tap the reply button, pick a tone, and a contextually relevant response is generated for the conversation in front of you. The keyboard itself is modelled on the familiar iOS system layout, so the learning curve is mostly about where the AI controls sit rather than how to type. Beyond straight reply generation, the app ships a library of predefined prompts covering grammar checking, paragraph formatting, turning text into verse, adding emoji, and other transformations. Users can also write and save their own prompts, with the site citing translation to English and tweet classification as examples. Multilingual support spans Arabic, English, French, Spanish, Italian, Turkish and more, which makes the tool useful for people who draft in one language and send in another. ReplyAssistant is designed primarily for heavy messengers: people answering client emails, managing group chats, or handling social replies at volume. There are three routes into the same engine. The keyboard works inline, the in-app screen lets you paste a query and generate a reply for copying elsewhere, and an iOS share sheet action takes any selected text from another app and opens it pre-filled for generation. That share sheet route makes the tool usable in apps that do not accept third-party keyboards at all. It sits in the same mental space as AI keyboard extensions and reply suggestion add-ons, and is narrower than a general assistant: it does not schedule, summarise long documents, or manage inboxes. The pitch is speed and context, not depth, and the output quality tracks whatever the underlying chat APIs produce. Anyone who wants AI drafting without leaving the conversation should find the share sheet and keyboard combination more practical than copying text back and forth to a web chatbot.