

Smart Reply. Three on-device drafts in your tone, each tagged — tap one to send.
Communicate better. Build stronger relationships.
Built for iOS, AI Reply Assistant grounds every reply in your real conversations, relationships, and schedule — drafting, organizing, and acting across WhatsApp, Telegram, Instagram, and Messenger, so everyday messaging deepens connections and repetitive work disappears.
Our AI comprehends the surrounding conversation, enabling functionality beyond message drafting. Efficiently summarize extensive threads, convert key information into calendar events and reminders, customize voice and capabilities through Skills tailored to your communication style, and integrate Claude for advanced reasoning tasks. This solution supports authentic responses, enhanced organization, and improved decision-making—all accessible with minimal interaction.

Writing, creating, automating, and translating — the things you already do on your iPhone, made faster where you already do them. AI Reply Assistant builds on Apple’s own frameworks, so the capability sits directly in the typing interface rather than in another app.
Certain communications merit preservation—welcoming greetings, refined outreach, and optimally crafted responses. Save messages once and enable automatic personalization through dynamic variables, such as the recipient’s name, to ensure each interaction appears bespoke. Curate a repository of frequently utilized, high-quality messages, merge birthdays across your platforms so none passes unnoticed, and streamline thoughtful communication with a single tap.
WhatsApp, Telegram, Instagram, and Messenger, side by side. Conversations from every platform coexist in a single unified experience — use your Telegram stickers and premium custom emoji in WhatsApp chats, apply interactive mask stickers, and schedule messages across services. One inbox brings all four together, each with its own strengths.
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AI Reply Assistant connects to WhatsApp and Telegram on-device, transmitting messages directly from your device to the network to maintain end-to-end encryption without a Flowbie server in between. Instagram and Messenger connect through the on-device Messagix bridge — again straight from your device, with only the session stored locally. Apple Intelligence is incorporated via on-device processing. You retain control over Claude: on your own key it goes directly to Anthropic, and with AI Credit it passes through a relay that stores nothing.

Start free on one account. Paid plans differ on one thing — how many messaging accounts you connect at once. Claude is paid for separately: add prepaid AI Credit on any plan, or bring your own key.
| Compare plans | Free US$0 | Solo US$19.99/yr One account — save ~45% or US$2.99 billed monthly · 7-day free trial on either | Recommended Duo US$32.99/yr Two accounts — save ~45% or US$4.99 billed monthly · 7-day free trial on either | Pro US$49.99/yr All four accounts — save ~45% or US$7.49 billed monthly · 7-day free trial on either |
|---|---|---|---|---|
| Connect WhatsApp, Telegram, Instagram & Messenger | 1 account | 1 account | Any 2 | All four |
| Skills | Up to 3 | Unlimited | Unlimited | Unlimited |
| Quick Reply — save as many as you like; this is how many stay active | 5 most recently used | Unlimited | Unlimited | Unlimited |
| Recipients per scheduled message | Up to 2 | Unlimited | Unlimited | Unlimited |
| On-device AI — Smart Reply, Analyze, Summary, Skills, AI Writer | First week unlimited, then 5 per day | Unlimited | Unlimited | Unlimited |
| Premium Shortcut templates | Included | Included | Included | |
| Claude with AI Credit — prepaid top-ups, no API key needed | Pay as you go | Pay as you go | Pay as you go | Pay as you go |
| Option to bring your own Claude key — adds Managed Agents, Agent Skills, and Files | Included | Included | Included |
AI Credit gets anyone started in a minute — no subscription, no Anthropic account. Bringing your own key is the full-surface tier: you deal with Anthropic directly, and Managed Agents, Agent Skills, and Files come with it. Context is not part of the difference — every model runs at its full native window on either route.
| Compare | AI Credit Prepaid top-ups · any plan | Your own API key Any paid plan · direct to Anthropic |
|---|---|---|
| Who it’s for | Anyone — no subscription, no Anthropic account, no API key | Subscribers on any paid plan who want the full Claude surface and a direct Anthropic relationship |
| Setup | Sign in with Apple, buy a top-up, start chatting | Create an Anthropic account, mint an API key, paste it in once |
| Billing | Prepaid credit in dollars, spent as you use Claude. Never expires; pack prices include the cost of running the model. Any balance above zero starts a request — there is no minimum to begin | You pay Anthropic directly at their standard usage rates — no markup and no per-message fee from us |
| Models | Haiku, Sonnet, and Opus — never gated by plan | Haiku, Sonnet, and Opus |
| Context window | Up to 1,000,000 tokens (Opus and Sonnet) | Up to 1,000,000 tokens (Opus and Sonnet) |
| Agent chat & AI Tools | Agent chat included, with every tool except two — the Files API and Agent Skills both need your own key | Agent chat included, with every tool |
| Web search | Included — billed from credit per search | Included — billed by Anthropic per search |
| Managed Agents | Not available | Included — server-side sessions that keep working across devices |
| Agent Skills — PPTX, XLSX, PDF, DOCX | Not available — generating these files runs in Anthropic's code container, which is billed to an Anthropic organisation rather than to prepaid credit | Included — PowerPoint, Excel, PDF, and Word generated in Anthropic’s code container |
| Privacy path | Through Flowbie’s relay — content is never stored; logs carry only billing metadata | Straight to Anthropic under your own account — Flowbie is never in the path |
| If you have both | Your balance sits untouched — it is not spent while a usable key is connected | Your key serves every request, so you are never charged twice for the same reply |
Claude needs one of two things: prepaid AI Credit, or your own Anthropic key on a paid plan. A subscription by itself does not include Claude usage — here is every combination.
| Your setup | What you get |
|---|---|
| Free plan · no AI Credit | Claude is off. Apple Intelligence still runs Smart Reply, Skills, Analyze, Summary, and AI Writer on device — unlimited for your first week, then 5 actions a day. |
| Free plan · AI Credit | Claude is on. Agent chat, cloud Smart Reply and Skill drafts, and every tool except the two that need your own key — no subscription needed. |
| Paid plan · no key, no AI Credit | Claude is off. A paid plan on its own does not include Claude usage — add AI Credit or connect your own Anthropic key. The Apple Intelligence actions the Free plan caps at 5 a day, after an opening week with no cap, are uncapped on every paid plan. |
| Paid plan · AI Credit | Claude is on, spent from your prepaid balance. Same surface as the Free plan with credit. |
| Paid plan · your own key | Claude is on, billed by Anthropic to your own account. Adds Managed Agents, Agent Skills, and Files. Available on Solo, Duo and Pro alike — bringing a key is not what the tiers differ on. |
| Paid plan · your own key · AI Credit | Your key serves every request and your credit is left untouched — you are already paying Anthropic, so we never spend the balance on top. |
On AI Credit you pick any of the three models at its full context window — the model list is never gated by how you pay. Requests are metered against your balance as they run, and when it is spent Claude asks you to top up.
| AI Credit packs | Price | Credit added |
|---|---|---|
| Small | US$4.49 | US$3.00 |
| Medium | US$14.49 | US$10.00 |
| Large | US$49.99 | US$35.00 |
Your first AI Credit is on us. Subscribe and sign in with Apple, and AI Credit lands in your balance automatically once your first bill goes through — US$1.00 on Solo, US$1.50 on Duo, US$2.00 on Pro. Once per Apple Account.
The App Store charges in your local currency. Credit is spent at Anthropic's standard model rates as you use Claude, never expires, and pack prices include the cost of running the model.
Both WhatsApp Personal and WhatsApp Business App accounts work — AI Reply Assistant links as a companion device using WhatsApp's Multi-Device protocol, just like WhatsApp Desktop. (The server-side WhatsApp Business API for large enterprises is a different product and isn't used.) On Telegram, all user accounts are supported — Personal, Premium, Business, and anonymous Fragment-number accounts; bot accounts can't log in. Instagram works with personal and professional (creator or business) accounts, and Messenger with your Facebook account — for both, you sign in on Meta's own page and only the session is stored on-device. The full comparison is in the FAQ.
One account per platform — one each of WhatsApp, Telegram, Instagram, and Messenger, side by side in the unified inbox. How many you connect at once is what the plans differ on: Free and Solo one, Duo any two, Pro all four.
AI Reply Assistant runs on iPhone and iPad with iOS 26 or later. Apple Intelligence features need an Apple Intelligence-capable device — iPhone 15 Pro and later, or any iPad with an M1 chip or A17 Pro and later. Not available on Mac, Apple Vision Pro, Android, or the web.
Absolutely. Apple Intelligence is integrated into the core of AI Reply Assistant through on-device processing — Smart Reply, Writing Tools, Image Playground, and more, no API key required, and no Claude of any kind needed. With Claude, you get even more expertise to handle more complex requests — extended thinking, AI tools, multimodal understanding, document creation (on your own Anthropic key), and a far larger context window: roughly 50x the on-device model on AI Credit, and up to 250x on your own Anthropic key.
Download AI Reply Assistant on iOS and try it free.