Comparison

Optimus AI 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

Optimus AI

This app offers advanced AI-powered conversations and image generation. It allows users to send messages via SMS and WhatsApp without needing to add contacts, enhancing communication and creativity.

Highlights
  • OpenAI-powered chatbot
  • Image-generation AI integration
  • Natural conversation capabilities
  • Intelligent responses
  • Send SMS/WhatsApp without contacts
Features
Read full description

Introducing Optimus AI - Your Ultimate Chatbot Companion Unleash the power of artificial intelligence and elevate your conversations with Optimus AI, the revolutionary iOS app that combines cutting-edge OpenAI technology with the incredible capabilities of Image-generation AI integration. Get ready to experience the future of chatbots like never before! With Optimus AI, you have the world's most advanced chatbot at your fingertips. Engage in dynamic, natural conversations and witness the app's ability to understand and respond with astonishing accuracy. From answering your burning questions to providing insightful advice, Optimus AI is here to make your interactions smarter, faster, and more enjoyable. But that's not all. Optimus AI goes beyond traditional chatbots by integrating the groundbreaking Image-generation AI technology. Now you can bring your conversations to life with stunning visuals and creativity. Explore a whole new dimension of communication as Optimus AI generates incredible images based on your discussions. Express your thoughts, spark your imagination, and witness the magic of AI-powered artistry. In addition, Optimus AI offers a groundbreaking feature that simplifies your messaging experience. Say goodbye to the hassle of adding contacts to your address book. Seamlessly send SMS messages or WhatsApp messages to anyone, even if they're not on your contact list. Reach out to friends, family, or colleagues with ease, enhancing your connectivity like never before. Key Features: - Powerful chatbot technology powered by OpenAI - Image-generation AI integration for captivating visual experiences - Engaging and natural conversation capabilities - Intelligent responses tailored to your needs - Generate awe-inspiring images based on your discussions - Send SMS and WhatsApp messages without adding contacts Optimus AI is the must-have app for those seeking a more intelligent and dynamic conversation experience. Whether you're a tech enthusiast, a creative thinker, or simply someone who loves exploring the possibilities of AI, Optimus AI will astound and captivate you. Download Optimus AI now and discover the limitless potential of AI-powered chatbots. Join the future of communication today!

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

Optimus AI4 screens
AI Agent Builder4 screens

Verdict

The call

The clearest difference is price: Optimus AI at Free against AI Agent Builder's $2.99. AI Agent Builder's advantage is in-app purchases (none vs 5) and ads (none vs shown). On 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

Optimus AI is free to download; AI Agent Builder costs $2.99 up front. Optimus AI sells 5 one-off in-app purchases. AI Agent Builder asks for nothing beyond the download.

UpkeepUpdate frequency

Optimus AI ships an update every 3 months, AI Agent Builder every 10 days. The most recent releases landed on October 20, 2026 and October 19, 2026 respectively.

Scorecard4 real differences · 6 level
Optimus AI versus AI Agent Builder: the parameters behind the verdict, then further details
ParameterOptimus AIAI Agent Builder
PriceFree — better$2.99
Rating3.5 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 monthsEvery 10 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size27 MB6 MB
Age rating4+4+
DeveloperMohammad MasriYuhsiu Lai

In-app purchases

5 purchases

Optimus AI

One-time5
  • 5 Credits for direct messages$14.99
  • 10 Credits for direct messages$29.99
  • 20 Credits for direct messages$59.99
Show 2 more
  • 40 Credits for direct messages$115.99
  • Hundred Credits$269.99
None

AI Agent Builder

No in-app purchases

Questions

Is Optimus AI free?
Optimus AI 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 Optimus AI or AI Agent Builder have ads?
Optimus AI shows ads; AI Agent Builder does not.
Which is updated more often, Optimus AI or AI Agent Builder?
Optimus AI ships an update every 3 months, and AI Agent Builder every 10 days. Most recently, Optimus AI was updated on October 20, 2026 and AI Agent Builder on October 19, 2026.

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