Comparison

Kungul vs fast_burn

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Kungul

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
Read full description

Kungul® app is the ultimate tool for consumers who want to make informed decisions about their skincare products. By scanning the product barcode with Kungul app, you can quickly determine the healthiness of the product based on a 3-color code scoring system (green, orange, red) that evaluates each ingredient according to the latest scientific findings from the European Commission. Kungul app provides a clear and easy-to-understand score that takes into account potential health risks associated with each ingredient. In addition, Kungul app offers up to 3 alternative products, of the same range, that are healthier and more natural. Every product in Kungul app's database has been carefully evaluated and given a score based on the latest scientific research. Products with green scores are considered safe and healthy, while products with orange or red scores may contain potentially harmful ingredients. But Kungul app doesn't stop at providing scores and recommendations. It also gives you detailed information on each ingredient in the product, including potential health risks and alternative options. This means you can make informed decisions about your skincare products and take control of your skin health. Kungul app is the ultimate personal advisor that brings transparency to skincare products with a single scan. It enables consumers to consume in a more enlightened way by providing the best product recommendations objectively, based on EU latest regulations. No brand can influence the ratings or recommendations, and the app does not make any advertisements. With Kungul app, you can trust that you're making the right choice for your skin health.

About

fast_burn

Features
Read full description

Fasting made simple. FastBurn shows what's happening in your body as you fast - from fat burning to autophagy - so every hour feels like progress. FASTING TIMER One tap to start. A ring UI tracks your elapsed time and body phase: blood sugar rising, fat burning, ketosis, autophagy. PLANS THAT FIT YOU Your goal, body type, and experience determine the best protocol: - 16:8 (16h fast / 8h eat) - 18:6 (18h fast / 6h eat) - 20:4 (20h fast / 4h eat) - 36-hour extended fast WEIGHT TRACKING + APPLE HEALTH Log weight and view trends. Syncs automatically with Apple Health. STATS & CALENDAR Total fasts, average duration, best streak - all at a glance. Calendar view shows your daily history. SMART REMINDERS Customize alerts for fast start, phase changes, and eating windows. FREE FEATURES - 16:8 fasting timer - Fasting history & basic stats - Weight log PRO FEATURES - All fasting plans (18:6, 20:4, 36h) - Detailed body phase tracking - Full statistics & trend charts - Fasting calendar - Unlimited fasting history SUBSCRIPTION DETAILS FastBurn Pro is an auto-renewable subscription. - Annual plan: includes a 7-day free trial - Monthly plan - Payment is charged to your Apple ID at confirmation - Subscription auto-renews unless canceled at least 24 hours before the current period ends - Unused portion of a free trial is forfeited upon purchase - Manage or cancel: Settings > Apple ID > Subscriptions Terms of Use: https://fastburn-legal.vercel.app/terms.html

Screenshots

Kungul4 screens
fast_burn4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Kungul versus fast_burn: the parameters behind the verdict, then further details
ParameterKungulfast_burn
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 6 weeksEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size61 MB1 MB
Age rating17+12+
DeveloperKUNGUL SH.P.K.Keiichiro Hayashida

In-app purchases

None

Kungul

No in-app purchases

2 purchases

fast_burn

Subscriptions2
  • FastBurn Pro (Monthly)$4.991 Month
  • FastBurn Pro (Annual)7 Days trial$29.991 Year

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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