# Sub3 vs KoiNote

The clearest difference is iOS requirement: KoiNote at 15.5 against Sub3's 18. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Sub3 sells 3 in-app purchases, starting at $2.99 per month and KoiNote sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Sub3 ships an update every 9 days, KoiNote every 2 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sub3 | KoiNote |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Size | 33 MB | 40 MB |
| Requires iOS | 18 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [辉 彭](https://appshunter.io/developer/1780252118) | [厦门智伽科技有限公司](https://appshunter.io/developer/1851952936) |

## What reviewers say

### Sub3

[App page](https://appshunter.io/ios/app/sub3-subscription-tracker/id6761181626)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| monthly | $2.99 | per month |
| yearly | $12.99 | per year |
| lifetime | $19.99 | one-time |


### KoiNote

[App page](https://appshunter.io/ios/app/koinote/id6781148044)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| monthly subscribe | $1.99 | per month |
| vip for a week | $0.99 | one-time |
| 月会员 | $2.99 | one-time |


## Frequently asked questions

### Is Sub3 free?

Sub3 is free to download, with in-app purchases available.

### Is KoiNote free?

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

### Do Sub3 or KoiNote have ads?

Neither Sub3 nor KoiNote shows ads.

### Which is updated more often, Sub3 or KoiNote?

Sub3 ships an update every 9 days, and KoiNote every 2 weeks. Most recently, Sub3 was updated on October 27, 2026 and KoiNote 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.*