# Kungul vs fast_burn

The clearest difference is in-app purchases: Kungul at none against fast_burn's 2. Kungul also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). fast_burn's advantage is update cadence (every 8 days vs every 6 weeks). On price and ads there is nothing between them.

Both are free to download. fast_burn sells 2 in-app purchases, starting at $4.99 per month. Kungul asks for nothing beyond the download.

Kungul ships an update every 6 weeks, fast_burn every 8 days. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Kungul | fast_burn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/kungul/id6447996616/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 8 days** |
| Monetization | Free | — |
| Size | 61 MB | 1 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [KUNGUL SH.P.K.](https://appshunter.io/developer/1739933916) | [Keiichiro Hayashida](https://appshunter.io/developer/1622333497) |

## What reviewers say

### Kungul

[App page](https://appshunter.io/ios/app/kungul/id6447996616)

Scan product barcodes to instantly assess skincare product healthiness using a color-coded scoring system. Discover healthier, natural alternatives and gain detailed ingredient information to make informed decisions for your skin.

**Highlights:** Barcode scanning for product analysis, Color-coded health scoring system, Ingredient health risk evaluation, Alternative product recommendations, Detailed ingredient information, Objective, science-based ratings

**Features:** macOS Compatibility

**In-app purchases:** none


### fast_burn

[App page](https://appshunter.io/ios/app/fast-burn/id6768056154)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FastBurn Pro (Monthly) | $4.99 | per month |
| FastBurn Pro (Annual) | $29.99 | per year |


## Frequently asked questions

### Is Kungul free?

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

### Is fast_burn free?

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

### Do Kungul or fast_burn have ads?

Neither Kungul nor fast_burn shows ads.

### Which is updated more often, Kungul or fast_burn?

Kungul ships an update every 6 weeks, and fast_burn every 8 days. Most recently, Kungul was updated on October 24, 2026 and fast_burn on October 6, 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.*