# K2Sonnet vs Flowin

The clearest difference is update cadence: Flowin at every 4 days against K2Sonnet's every 7 months. Flowin also leads on iOS requirement (15.1 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

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

K2Sonnet ships an update every 7 months, Flowin every 4 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | K2Sonnet | Flowin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/k2sonnet/id6753734747/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 2 MB | 40 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Shanghai Jiyue Information Technology Co., Ltd.](https://appshunter.io/developer/1795192424) | [Pedro de Oliveira](https://appshunter.io/developer/1895062814) |

## What reviewers say

### K2Sonnet

[App page](https://appshunter.io/ios/app/k2sonnet/id6753734747)

This next-generation smart assistant helps streamline your daily tasks. It offers intelligent features designed to enhance productivity and organization. Experience a smarter way to manage your workflow.

**Highlights:** Smart assistance, Task management, Workflow enhancement, Intelligent features, Organization tools

**Features:** macOS Compatibility

**In-app purchases:** none


### Flowin

[App page](https://appshunter.io/ios/app/flowin-smart-daily-planner/id6762892248)

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

**In-app purchases:** none


## Frequently asked questions

### Is K2Sonnet free?

K2Sonnet is free to download, with no in-app purchases.

### Is Flowin free?

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

### Do K2Sonnet or Flowin have ads?

Neither K2Sonnet nor Flowin shows ads.

### Which is updated more often, K2Sonnet or Flowin?

K2Sonnet ships an update every 7 months, and Flowin every 4 days. Most recently, K2Sonnet was updated on October 30, 2026 and Flowin on October 25, 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.*