# Portside vs KASANE

The clearest difference is iOS requirement: KASANE at 17.0 against Portside's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Portside sells 1 in-app purchase, starting at $0.99 per month and KASANE sells 2 in-app purchases, starting at $7.99 per year. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 20, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Portside | KASANE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Size | 23 MB | 52 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jun Takahashi](https://appshunter.io/developer/628961721) | [AKIFUMI YOSHIMURA](https://appshunter.io/developer/1819749795) |

## What reviewers say

### Portside

[App page](https://appshunter.io/ios/app/portside-inbox-notes-and-todo/id6761294370)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium(Monthly) | $0.99 | per month |


### KASANE

[App page](https://appshunter.io/ios/app/kasane-habit-multi-timer-plus/id6772861577)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Premium | $7.99 | per year |
| Lifetime License | $17.99 | one-time |


## Frequently asked questions

### Is Portside free?

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

### Is KASANE free?

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

### Do Portside or KASANE have ads?

Neither Portside nor KASANE shows ads.

### Which is updated more often, Portside or KASANE?

Portside ships an update weekly, and KASANE weekly. Most recently, Portside was updated on September 20, 2026 and KASANE on September 18, 2026.

---

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