Comparison

OMessage vs Invoke

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

Head to head
About

OMessage

Features
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OMessage is a simple and easy-to-use chat app designed for iOS, allowing you to interact with the your local AI service. With an iMessage-style interface, it provides a familiar and seamless chatting experience. Whether you need information, writing assistance, or just a casual chat, OMessage is here to help. Features: - Multimodal Model Support: Interact with different types of models, supporting text, image, and other input/output formats. - Reasoning Model Support: Engage in complex reasoning and analysis for intelligent conversations. - Message History Management: Easily view and manage your chat history to revisit past conversations. - Model Switching: Quickly switch between different models to meet your specific needs. Note: This app requires a self-hosted Ollama service to function. The icons and model names in the app are solely used to help users differentiate between different AI models and are not part of any commercial promotion.

About

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.

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
Read 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

OMessage3 screens
Invoke3 screens

Verdict

The call

OMessage and Invoke are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

OMessage ships an update every 5 days, Invoke weekly. Both last shipped on October 28, 2026.

ScorecardNo meaningful differences
OMessage versus Invoke: the parameters behind the verdict, then further details
ParameterOMessageInvoke
PriceFreeFree
Rating—3.3 (10 ratings) — better
Positive reviews—58.3% of reviews
Number of ratings—10 — better
Update frequencyEvery 5 days — betterWeekly
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better16.6
Further details — not scored
Size12 MB3 MB
Age rating4+4+
Developer寰宇 骆kazuhiko sugimoto

In-app purchases

None

OMessage

No in-app purchases

None

Invoke

No in-app purchases

Questions

Is OMessage free?
OMessage is free to download, with no in-app purchases.
Is Invoke free?
Invoke is free to download, with no in-app purchases.
Do OMessage or Invoke have ads?
Neither OMessage nor Invoke shows ads.
Which is updated more often, OMessage or Invoke?
OMessage ships an update every 5 days, and Invoke weekly. Most recently, OMessage was updated on October 28, 2026 and Invoke on October 28, 2026.

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