Comparison

Clack vs AI Agent Builder

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Clack

Communicate privately with your AI agent through text and voice calls, all stored on your own server. Choose from various voice providers and manage multiple conversations with full history.

Highlights
  • Real-time voice and text chat
  • Self-hosted data storage
  • Multiple private conversations
  • Choice of voice providers
  • End-to-end encryption
  • No account required
Features
Read full description

Clack is a Voice Messenger made for Claude Code. Connect and control your sessions on Mac, from your iPhone — with the screen off, just by talking. You already have Claude Code sessions running on your Mac. Clack lets you listen in on them from anywhere else, and drive them forward by talking. Not a chatbot, and not a second Claude. The same sessions you left open, in your pocket — you hear what they're doing and you answer, and the work carries on where it was. HOW IT FEELS Put your AirPods in and leave the house. Clack reads out what your session is doing, in the words it would have written on screen. You say what you want next. It goes and does it, and tells you how it went. • Hear the reasoning as it happens — not a log of every step • Say something the moment you want to change direction • Screen off, phone in your pocket, hands doing something else • Every session on your computer, switched between by voice YOUR COMPUTER, YOUR SESSIONS Clack talks to a small relay you install on your own machine, alongside Claude Code. There is no server of ours in between holding your work. • The relay runs on your computer — you install it, you control it • Your phone and computer meet over your own Tailscale network • Messages are end-to-end encrypted, with a key only your two devices have • No account, no sign-up, no inbox of your conversations anywhere We can't read your sessions, because they never reach us. Speech is the one exception and it is explained plainly in the app before you agree to anything: what you say is transcribed, and replies are voiced, by a speech service — the audio, and nothing else. WHAT YOU NEED • A computer running Claude Code, with the free Clack Relay app on it • Tailscale on both devices — free for personal use • About five minutes to pair them, once REQUIRES A SUBSCRIPTION Clack is €4.99 a month with a one-week free trial. The subscription covers the speech that makes it hands-free. Cancel any time in Settings. Terms of Use (EULA): https://www.clack-app.com/terms.html Privacy Policy: https://www.clack-app.com/privacy.html

About

AI Agent Builder

Features
Read full description

This app turns your iPhone and iPad into a complete workshop for building, customizing, and running your own AI agents. Design an agent's personality, connect it to tools, chain multi-step workflows, and chat with it in real time — all without writing a single line of code. NEW IN VERSION 2.0 Template Gallery — Skip the blank page. This app now includes a dedicated Templates tab with ten professionally designed, ready-to-use agents: Research Assistant, Code Reviewer, Content Writer, Data Analyst, Travel Planner, Study Tutor, and more. Add any template to your library in a single tap, or open it in the builder to customize. Redesigned Dashboard — The home screen is now a dashboard. See your agent stats at a glance, jump into common actions instantly, and browse featured templates the moment this app opens. Demo Mode — Explore every feature with realistic sample data, with no API key required. BUILD AGENTS YOUR WAY A 12-step guided builder walks you through every part of your agent Choose from multiple AI providers: Claude, GPT, Gemini, and Groq Add your own OpenAI-compatible providers such as Ollama, Together AI, Mistral, and DeepSeek 20 built-in tools including web search, calculator, weather, translation, email, and file operations Connect Model Context Protocol (MCP) servers for extended tool access Create sub-agents that your main agent can delegate to Design visual workflows with conditions, loops, and branching Fine-tune temperature, token limits, and streaming behavior CHAT AND ITERATE Test your agents in a live chat with real-time tool execution Export agents as JSON to back up, reuse, or share Edit any agent at any time in the builder PRIVACY FIRST Your API keys are stored locally on your device and are only ever sent to the AI provider you choose. This app does not collect or transmit your data to any third party. NOTE: This app requires your own API key from an AI provider. Groq offers a free tier, so you can get started at no extra cost. Demo Mode lets you preview this app with no key at all.

Screenshots

Clack4 screens
AI Agent Builder4 screens

Verdict

The call

The clearest difference is price: Clack at Free against AI Agent Builder's $2.99. Clack also leads on update cadence (every 2 days vs every 10 days). AI Agent Builder's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Clack is free to download; AI Agent Builder costs $2.99 up front. Clack sells 2 in-app purchases, starting at $4.99 per month. AI Agent Builder asks for nothing beyond the download.

UpkeepUpdate frequency

Clack ships an update every 2 days, AI Agent Builder every 10 days. The most recent releases landed on October 15, 2026 and October 19, 2026 respectively.

Scorecard3 real differences · 7 level
Clack versus AI Agent Builder: the parameters behind the verdict, then further details
ParameterClackAI Agent Builder
PriceFree — better$2.99
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 days — betterEvery 10 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size18 MB6 MB
Age rating4+4+
DeveloperFabian SchneiderYuhsiu Lai

In-app purchases

2 purchases

Clack

Subscriptions1
  • Monthly7 Days trial$4.991 Month
One-time1
  • Clack Pro$2.99
None

AI Agent Builder

No in-app purchases

Questions

Is Clack free?
Clack is free to download, with in-app purchases available.
Is AI Agent Builder free?
AI Agent Builder costs $2.99, with no in-app purchases.
Do Clack or AI Agent Builder have ads?
Neither Clack nor AI Agent Builder shows ads.
Which is updated more often, Clack or AI Agent Builder?
Clack ships an update every 2 days, and AI Agent Builder every 10 days. Most recently, Clack was updated on October 15, 2026 and AI Agent Builder on October 19, 2026.

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