Echo IM vs 知己

Echo turns your most-used phrases into a keyboard. Copy any text → tap [+] to save it as a card → tap a card to paste it into any app. No more repetitive typing. [ CARD KEYBOARD · ONE TAP AWAY ] A horizontal grid of cards, grouped by Collection. Tap any card and the text is instantly inserted into the current field. Addresses, signatures, support replies, intros — always one tap away. [ AI POLISH ] The first cell on the keyboard is AI Polish. Tap it to rewrite the text before your cursor — each tap rotates through styles (smart → formal → concise → friendly → child-like → funny). Up to 3 results sit side-by-side for comparison. Tap the one you like to replace the original. • Built-in Echo MiniMax with a free quota, ready out of the box • Or bring your own API key: OpenAI / Claude / ZAI / MiniMax / Apple Foundation Models — unlimited [ CARD LIBRARY ] Organize cards in the main app: favorite, categorize, create, edit, reorder, backup & restore. Ships with official Collections (sales scripts, support replies, etc.) ready to use. [ TRULY LOCAL PRIVACY ] • Card data stays 100% on your device — no upload, no sync, no tracking • AI polish only reaches the network when you tap it, and only the text before your cursor is sent • No analytics, no tracking, no ad SDKs [ 2-STEP SETUP ] 1. Settings → Apps → Echo → enable Echo keyboard 2. Turn on "Allow Full Access" (required for AI polish) Long-press the globe while typing to switch to Echo. Echo doesn't try to be an all-in-one keyboard. It does one thing perfectly: your most-used phrases, always one tap away. Requires iOS 26.2 or later (Liquid Glass / Foundation Models).

知己是住在你手机里的 AI 私人管家。它记得你说过的事，在对的时间提醒你，也能在你点头后替你动手。 它记得 · 聊天里随口提到的偏好、过敏、家人喜好，自动整理成记忆 · 拍一张证件，识别号码和有效期，放进档案库 · 记账、心情、体重、目标进度，一处查看 它了解你（可选，默认关闭） · 连接 Apple 健康（HealthKit）：只读取步数、睡眠、运动、心率、体重、血压、血糖，每天汇总一条 · 读取日历，回答和提醒时结合你接下来几天的安排 · 导入支付宝、微信、银行账单，预览后一键记账 它动手 · “下周三下午三点提醒我去体检”——直接设好提醒 · 写日历、定闹钟、起草短信、联网查资料 · 凡是会改动手机的操作都会先问你，点“允许”才执行 它提前想到 · 每天早上一份简报，列出今天值得留意的事 · 房贷车贷、信用卡账单、借给朋友的钱，按时提醒还款与收款 · 证件、保单按到期前 180 / 90 / 30 / 7 天阶梯提醒 · 生日、预算、目标逾期都会提前告诉你 你的资料只属于你 · 所有资料只保存在本机，不需要注册账号 · 首次使用 AI 前征得你的同意，随时可撤回 · 健康数据不用于广告，只把汇总作为对话上下文发给你选择的模型服务 · 没有广告，不接入第三方统计和追踪；只有一项可在设置中关闭的匿名使用计数 使用说明：知己通过你选择的大模型服务工作（火山方舟、DeepSeek、Kimi（月之暗面）、智谱、通义千问、OpenAI、Gemini……以及其他兼容 OpenAI 接口的服务），需要填写你自己在该服务的 API Key。知己不是医疗器械，健康相关内容仅供参考。