# WatchAI: PDF & Document Chat — Personal knowledge, on wrist

> Personal knowledge, on wrist (iPhone/iPad app by 济坤 任.)

- Source: https://appshunter.io/ios/app/watchai-pdf-and-document-chat/id6784900895 (this page in markdown: same URL + `.md`)
- Developer: [济坤 任](https://appshunter.io/developer/6784879603)
- Category: Productivity, Reference
- Price: Free with in-app purchases
- Age rating: 17+
- Requires: iOS 17.0 · 26 MB
- Languages: English, French, Japanese, Chinese, Spanish, Chinese
- Released: 2026-07-05
- Data updated: 2026-11-05

## What is WatchAI?

Turn on the optional wrist-down clock to switch back to the in-app clock when you lower your wrist.

Pair a knowledge library with a custom AI expert role, and use them together when asking questions about your PDFs, notes and documents. Configure a supported provider, model and your own API key.

AI answers require an Internet connection. API usage is separate from WatchAI Pro. Available providers and models depend on your App Store region; unverified relay services remain unavailable.

BACK TO THE CLOCK
Choose the optional wrist-down clock when you want the app to return to a clock display as you lower your wrist. Custom clock styles inside the app are available with Pro.

YOUR KNOWLEDGE, YOUR EXPERT
• Import PDF, Word, PowerPoint, Excel, TXT, Markdown, CSV, JSON and common image files on iPhone.
• Organize knowledge bases by course, project or topic.
• Create custom AI expert roles with instructions for different tasks.
• Select a knowledge base and an expert role together. Relevant document passages and your expert instructions help guide the configured AI service's answer.
• Review available document excerpts and web sources to check the details.

YOUR SUPPORTED MODEL
Configure the provider and model you want from the services supported for your App Store region. Add your own API key. Requests are limited to recognized service hosts; this does not enable arbitrary providers or unknown relays.

FROM IPHONE TO APPLE WATCH
Sync your knowledge index, service and search settings, expert roles and conversation history. After syncing, Apple Watch can make requests independently when it has a network connection and valid service settings. Use voice, handwriting or the system keyboard to ask questions.

The interface supports English, Simplified Chinese, Traditional Chinese, Japanese, Spanish and French; language selection syncs to your paired watch.

YOU CONTROL SHARING
Documents and history are stored on your devices and may sync to your paired watch. iPhone API keys use the system Keychain. Before content is sent, the app identifies the recipient, service or model and data involved, then asks for explicit consent. You can refuse or revoke permission and keep using local materials, history and the in-app clock. Third-party retention and deletion follow the recipient's privacy policy.

FREE AND PRO
The free version supports one knowledge base. WatchAI Pro unlocks multiple knowledge bases and custom clock styles inside the app.

Monthly Pro renews automatically. Eligible subscribers can receive a one-month free trial. Your local subscription price, billing period and trial eligibility are shown in the App Store and before purchase. To stop renewal, cancel in your App Store subscription settings at least 24 hours before the trial or current billing period ends. A lifetime purchase is also available. Buying lifetime access does not automatically cancel an existing monthly subscription. Availability and trial eligibility are determined by the App Store.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| WatchAI Pro Monthly | $0.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| WatchAI Pro | $9.99 | one-time |


## Is WatchAI safe?

Not enough ratings yet to assess WatchAI.

## Is WatchAI legit?

WatchAI: PDF & Document Chat has limited verification signals. The AppsHunter Legitimacy Score for WatchAI is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.2.2 — 2026-11-03

Refreshed our English App Store presentation to explain the optional wrist-down clock, knowledge libraries with custom AI experts, and supported model settings. App features and subscription pricing are unchanged.

### 1.2.1 — 2026-10-26

Localized the App Store page in all six supported languages, with clearer descriptions of document Q&A, Apple Watch syncing and privacy controls. App features and subscription pricing are unchanged.

### 1.2 — 2026-10-25

更新 iPhone 和 Apple Watch 应用图标，精简设置页标题。重新设计隐私介绍、隐私设置与会员中心。新增月度 Pro：符合条件的订阅者可免费试用1个月，之后自动续费；美国商店 US$0.99/月，其他地区以当地价格为准。改善购买恢复与到期处理，继续提供买断 Pro。

### 1.1 — 2026-10-22

修复会员购买确认页无法显示的问题，改善取消及失败后的重试体验。

新增应用语言切换：可在设置中选择跟随系统、简体中文、繁体中文、英语、日语、西班牙语和法语。切换立即生效，重启后保留，并自动同步至配对手表。设置、专家、使用说明及隐私提示同步支持多语言。

完善隐私与数据共享：首次启动无需配置密钥即可查看说明；继续设置不会授予发送权限。实际发送前展示服务接收方、用途、数据类别与隐私政策，支持拒绝和撤回。仅允许已识别的官方 HTTPS 接收方，无法核实的中转暂不发送数据，并保留已有配置。隐私提示隐藏凭据和 URL 查询参数。

新增专家角色并支持同步至手表，专家与知识库可独立选择。改善模型设置引导，新安装默认关闭可选联网搜索；优化聊天、助手及知识库布局，并根据 App Store 地区调整可用服务。

### 1.0 — 2026-07-05

No release notes.

## More apps by 济坤 任

- [Revo Voice Memory & AI Notes](https://appshunter.io/ios/app/revo-voice-memory-and-ai-notes/id6826621187)

All apps by 济坤 任: https://appshunter.io/developer/6784879603

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-05.*