# DiffuserStick vs UseCycle

The clearest difference is in-app purchases: UseCycle at none against DiffuserStick's 1. UseCycle also leads on update cadence (every 5 days vs every 12 months). DiffuserStick's advantage is iOS requirement (12.1 vs 15.1). On price, ads and device support there is nothing between them.

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

DiffuserStick ships an update every 12 months, UseCycle every 5 days. The most recent releases landed on September 30, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | DiffuserStick | UseCycle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/usecycle/id6768562696/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 12 months | **Every 5 days** |
| Monetization | — | Ad-supported |
| Size | 17 MB | 38 MB |
| Requires iOS | **12.1** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Bum Tae Yoon](https://appshunter.io/developer/1578285460) | [Eunae Kim](https://appshunter.io/developer/1896585570) |

## What reviewers say

### DiffuserStick

[App page](https://appshunter.io/ios/app/diffuserstick/id1578285458)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove all ads 1 | $0.99 | one-time |


### UseCycle

[App page](https://appshunter.io/ios/app/usecycle/id6768562696)

Easily track the replacement schedule for everyday items like contact lenses and filters. Receive timely notifications so you never forget to repurchase. Build better habits and stay consistent with your personal care routine.

**Highlights:** Smart cycle tracking for various products, Create custom lists of items, Timely replacement reminders, Easy item management, Habit building for routines

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

**In-app purchases:** none


## Frequently asked questions

### Is DiffuserStick free?

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

### Is UseCycle free?

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

### Do DiffuserStick or UseCycle have ads?

Both DiffuserStick and UseCycle show ads.

### Which is updated more often, DiffuserStick or UseCycle?

DiffuserStick ships an update every 12 months, and UseCycle every 5 days. Most recently, DiffuserStick was updated on September 30, 2026 and UseCycle on September 17, 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.*