# 知止 vs PuddingAlarm

The clearest difference is in-app purchases: 知止 at none against PuddingAlarm's 1. 知止 also leads on iOS requirement (17.0 vs 26.1). PuddingAlarm's advantage is update cadence (every 10 days vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. PuddingAlarm sells 1 one-off in-app purchase. 知止 asks for nothing beyond the download.

知止 ships an update monthly, PuddingAlarm every 10 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 知止 | PuddingAlarm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Size | 14 MB | 9 MB |
| Requires iOS | **17.0** | 26.1 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [玉庭 何](https://appshunter.io/developer/1867438392) | [利悦 冀](https://appshunter.io/developer/6792959894) |

## What reviewers say

### 知止

[App page](https://appshunter.io/ios/app/id6758208809)

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

**In-app purchases:** none


### PuddingAlarm

[App page](https://appshunter.io/ios/app/puddingalarm-future-reminder/id6792993599)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Early Bird PRO Membership | $4.99 | one-time |


## Frequently asked questions

### Is 知止 free?

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

### Is PuddingAlarm free?

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

### Do 知止 or PuddingAlarm have ads?

Neither 知止 nor PuddingAlarm shows ads.

### Which is updated more often, 知止 or PuddingAlarm?

知止 ships an update monthly, and PuddingAlarm every 10 days. Most recently, 知止 was updated on October 31, 2026 and PuddingAlarm on November 5, 2026.

---

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