# Chat API vs Invoke

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.

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.

## The numbers

| Metric | Chat API | Invoke |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/chat-api-ai-wrapper/id6670289029/reviews)** | [3.3 (10 ratings)](https://appshunter.io/ios/app/invoke-local-llm-client/id6749133236/reviews) |
| Number of ratings | 5 | **10** |
| Positive reviews | **75.0% of reviews** | 58.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | Weekly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 78 MB | 3 MB |
| Requires iOS | **14.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Andres Nunez Soto](https://appshunter.io/developer/1748007663) | [kazuhiko sugimoto](https://appshunter.io/developer/1089152635) |

## What reviewers say

### Chat API

[App page](https://appshunter.io/ios/app/chat-api-ai-wrapper/id6670289029)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access (Monthly) | $1.99 | per month |
| Unlimited Access (Yearly) | $19.99 | per year |
| Pro Supporter Yearly | $49.99 | per year |


### Invoke

[App page](https://appshunter.io/ios/app/invoke-local-llm-client/id6749133236)

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.

**Highlights:** Connects to local LLM servers, Offline and privacy-focused, Supports Ollama and LM Studio, Real-time message streaming, Chat history management, Dark Mode support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Chat API free?

Chat API is free to download, with in-app purchases available.

### Is Invoke free?

Invoke is free to download, with no in-app purchases.

### Which has better reviews, Chat API or Invoke?

Chat API is rated higher. Chat API averages 4.2 out of 5 from 5 ratings, while Invoke averages 3.3 from 10 ratings.

### Do Chat API or Invoke have ads?

Chat API shows ads; Invoke does not.

### Which is updated more often, Chat API or Invoke?

Chat API ships an update weekly, and Invoke weekly. Most recently, Chat API was updated on September 17, 2026 and Invoke on September 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*