# OnSkin vs KO Interval Timer

The clearest difference is ads: KO Interval Timer at none against OnSkin's shown. KO Interval Timer also leads on iOS requirement (16.4 vs 18.0). OnSkin's advantage is chart position (#184 vs unranked). On price, in-app purchases and device support there is nothing between them.

Both are free to download. OnSkin sells 14 in-app purchases, starting at $4.99 per month and KO Interval Timer sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | OnSkin | KO Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (33K ratings)](https://appshunter.io/ios/app/onskin-beauty-product-scanner/id1630768985/reviews)** | — |
| Number of ratings | **33K** | — |
| Positive reviews | 71.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | — |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#184** | — |
| Size | 115 MB | 74 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [AIBY](https://appshunter.io/developer/1458102137) | [VAVIVA](https://appshunter.io/developer/6807737098) |

## What reviewers say

### OnSkin

[App page](https://appshunter.io/ios/app/onskin-beauty-product-scanner/id1630768985)

**Currently charting:** #184 Top Grossing · Health & Fitness (US App Store)

Scan cosmetic products to understand their ingredients and safety profiles. Get personalized skincare tips and find cleaner alternatives tailored to your skin type. Make informed beauty choices with unbiased scientific ratings.

**Highlights:** Cosmetic safety scanner, Barcode and photo scanning, Ingredient analysis and flagging, Personalized skincare tips, Skin type matching, Product reviews and trends, Daily trivia game

**Features:** Vision Pro support

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OnSkin PRO (Premium access) | $4.99 | per month |
| OnSkin PRO (Premium access) | $4.99 | per month |
| Weekly access with free trial | $4.99 | per 7 days |
| OnSkin PRO (Premium access) | $5.99 | per 7 days |
| Weekly access | $5.99 | per 7 days |
| Weekly Premium Access | $6.99 | per 7 days |
| Weekly premium with free trial | $6.99 | per 7 days |
| Weekly access | $7.99 | per 7 days |
| Weekly Premium Access | $7.99 | per 7 days |
| OnSkin PRO (Premium access) | $29.99 | per year |
| OnSkin PRO (premium access) | $29.99 | per year |
| OnSkin PRO (premium access) | $39.99 | per year |
| OnSkin PRO (Premium access) | $39.99 | per year |
| Extra Scan Pack | $0.99 | one-time |

**What reviewers like**

- 🚀 Helpful for skin and hair care
- 👍 Provides personalized recommendations
- 🔍 Scans products to check ingredients
- 📊 Detailed analysis of product safety
- 💡 Useful for those with sensitive skin

**What reviewers complain about**

- 💰 Limited free scans, requires paid subscription
- 🔍 Some products not found in the database
- 🤔 Inconsistent ratings for some popular products
- 🔍 Concerns about accuracy of product analysis

**Reported bugs**

- Scanning issues, with some products stuck in 'analyzing' state
- Subscription charges not always clear or consistent

**Requested features**

- Expand product database to include more brands and items
- Allow more free scans before requiring paid subscription
- Improve accuracy of product analysis and ratings
- Add option to create custom product lists or favorites


### KO Interval Timer

[App page](https://appshunter.io/ios/app/ko-interval-timer/id6807770200)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| English | $3.99 | per month |
| English | $29.99 | per year |


## Frequently asked questions

### Is OnSkin free?

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

### Is KO Interval Timer free?

KO Interval Timer is free to download, with in-app purchases available.

### Do OnSkin or KO Interval Timer have ads?

OnSkin shows ads; KO Interval Timer does not.

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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.*