Chat API vs Invoke
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chat API
Access powerful AI models locally or through cloud APIs. This tool offers flexible integration with GPT-4, OpenAI, Grok, and local LLMs for diverse tasks like coding, drafting, and research.
- Private local LLM support with Ollama
- OpenAI and Grok API integration
- Built-in text-only GPT-4 model
- Bing-powered real-time searches
- Image generation capabilities
- Seamless model switching
Read full descriptionHide full description
Run private local LLM AI models with Ollama, or unleash AI through OpenAI & Grok APIs for advanced features and flexibility. ChatAPI offers a built-in text-only GPT-4 model for instant AI access, plus support for OpenAI API, Grok API, local LLM Ollama models, and Bing-powered real-time searches. - Flexible AI Access: Use the onboard GPT-4, connect Ollama for running private AI locally on your own PC or server, or integrate OpenAI/Grok/Bing APIs for advanced features like image generation. - Versatile & Powerful: Seamlessly switch between models for drafting, coding, brainstorming, or research with fast, reliable responses. Subscription Options: - Monthly: Unlimited GPT-4, OpenAI/Grok/Bing API integration, and Ollama support. - Yearly: Same as monthly, with cost savings. Download ChatAPI for flexible, private, and powerful AI interactions! Privacy Policy: https://sites.google.com/view/gpt-lite/privacy Terms of Use: https://sites.google.com/view/gpt-lite/terms Support: https://sites.google.com/view/gpt-lite/support
Invoke
This app allows you to chat with your own locally hosted AI models, offering a private and secure experience. It connects to Ollama or LM Studio servers on your local network, requiring some technical setup for a fully offline AI conversation.
- Connects to local LLM servers
- Offline and privacy-focused
- Supports Ollama and LM Studio
- Real-time message streaming
- Chat history management
- Dark Mode support
Read full descriptionHide full description
Note: This app is intended for users who are able to set up a local LLM server (Ollama or LM Studio) within their own LAN environment. Some technical setup is required. Chat with your local LLM! Seamlessly connect to Ollama or LM Studio for a fully offline, privacy-focused AI chat experience! This iOS app connects to a locally hosted Large Language Model (LLM) server and enables seamless, natural conversations. Compatible with Ollama and LM Studio via HTTP, it provides real-time message streaming and intuitive chat history management. The app operates entirely within a local network—no internet connection required—making it ideal for those who prioritize privacy and security. Key Features: - Easy connection to local LLM servers (Ollama / LM Studio) - Natural chat UI with bubble-style layout - Auto-saving and browsing chat history - Server and model selection via settings screen - Supports Dark Mode
Screenshots
Verdict
The clearest difference is rating: Chat API at 4.2 against Invoke's 3.3. Chat API also leads on review sentiment (75% vs 58%) and iOS requirement (14.0 vs 16.6). Invoke's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, ratings volume, update cadence and device support 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
Both are free to download. Chat API sells 3 in-app purchases, starting at $1.99 per month. Invoke asks for nothing beyond the download.
Chat API holds the better App Store score, 4.2 against 3.3. Both are backed by a comparable volume of ratings — 5 and 10 respectively. Written reviews point the same way: 75% of Chat API's written reviews are positive against 58% of Invoke's.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 17, 2026 and September 10, 2026 respectively.
| Parameter | Chat API | Invoke |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (5 ratings) — better | 3.3 (10 ratings) |
| Positive reviews | 75.0% of reviews — better | 58.3% of reviews |
| Number of ratings | 5 | 10 — better |
| Update frequency | Weekly | Weekly |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 78 MB | 3 MB |
| Age rating | 17+ | 4+ |
| Developer | Andres Nunez Soto | kazuhiko sugimoto |
Customer experience
Chat API
Invoke
In-app purchases
Chat API
- Unlimited Access (Monthly)7 Days trial$1.991 Month
- Unlimited Access (Yearly)$19.991 Year
- Pro Supporter Yearly$49.991 Year
Invoke
No in-app purchases









