# FlowStack vs Offline AI Chat & Assistant

The clearest difference is in-app purchases: FlowStack at none against Offline AI Chat & Assistant's 1. Offline AI Chat & Assistant's advantage is update cadence (weekly vs every 5 months) and iOS requirement (17.0 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. Offline AI Chat & Assistant sells 1 in-app purchase, starting at $4.99 per 7 days. FlowStack asks for nothing beyond the download.

FlowStack ships an update every 5 months, Offline AI Chat & Assistant weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | FlowStack | Offline AI Chat & Assistant |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 3.5 GB |
| Requires iOS | 26.2 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [David Castellano](https://appshunter.io/developer/1892146693) | [Sergey FONOV](https://appshunter.io/developer/1077345102) |

## What reviewers say

### FlowStack

[App page](https://appshunter.io/ios/app/flowstack-ai/id6761936853)

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

**In-app purchases:** none


### Offline AI Chat & Assistant

[App page](https://appshunter.io/ios/app/offline-ai-chat-and-assistant/id6764504681)

This AI chat app operates offline on your device, keeping your prompts and answers private. It allows for drafting, planning, coding, and everyday questions without cloud relays. Advanced features include large context windows and customizable AI model parameters.

**Highlights:** Offline AI model operation, Private prompt and answer handling, Large context windows (up to 32K tokens), Customizable AI parameters (temperature, Top-K, Top-P), CPU/GPU runtime controls, Local chat history saving, Thinking Mode for deep reasoning

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $4.99 | per 7 days |


## Frequently asked questions

### Is FlowStack free?

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

### Is Offline AI Chat & Assistant free?

Offline AI Chat & Assistant is free to download, with in-app purchases available.

### Do FlowStack or Offline AI Chat & Assistant have ads?

Neither FlowStack nor Offline AI Chat & Assistant shows ads.

### Which is updated more often, FlowStack or Offline AI Chat & Assistant?

FlowStack ships an update every 5 months, and Offline AI Chat & Assistant weekly. Most recently, FlowStack was updated on October 31, 2026 and Offline AI Chat & Assistant on October 31, 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.*