# Thuốc Biệt Dược vs Fun Calorie Tracker

The clearest difference is update cadence: Fun Calorie Tracker at every 2 days against Thuốc Biệt Dược's every 8 months. Thuốc Biệt Dược's advantage is iOS requirement (8.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Thuốc Biệt Dược sells 1 one-off in-app purchase and Fun Calorie Tracker sells 5 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Thuốc Biệt Dược ships an update every 8 months, Fun Calorie Tracker every 2 days. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Thuốc Biệt Dược | Fun Calorie Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fun-calorie-tracker-luko/id6788284565/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 528 MB | 196 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Shane Clifford](https://appshunter.io/developer/850287078) | [Zentari Labs Inc](https://appshunter.io/developer/6788284567) |

## What reviewers say

### Thuốc Biệt Dược

[App page](https://appshunter.io/ios/app/thuoc-biet-duoc/id764895100)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $4.99 | one-time |


### Fun Calorie Tracker

[App page](https://appshunter.io/ios/app/fun-calorie-tracker-luko/id6788284565)

This app makes healthy eating and exercise fun with a playful AI companion. It offers personalized workouts, quick meal logging with photo scanning, and a unique reward system that turns healthy habits into a collectible world.

**Highlights:** AI meal scanner, Personalized workout plans, Quick meal logging, Collectible sticker maps, Recipe inspiration, Progress visualization

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Luko Gold Weekly | $3.99 | per 7 days |
| Luko Gold Monthly | $9.99 | per month |
| Luko Gold | $34.99 | per year |
| Luko Gold Annual | $49.99 | per year |
| Luko Gold | $49.99 | per year |


## Frequently asked questions

### Is Thuốc Biệt Dược free?

Thuốc Biệt Dược is free to download, with in-app purchases available.

### Is Fun Calorie Tracker free?

Fun Calorie Tracker is free to download, with in-app purchases available.

### Do Thuốc Biệt Dược or Fun Calorie Tracker have ads?

Neither Thuốc Biệt Dược nor Fun Calorie Tracker shows ads.

### Which is updated more often, Thuốc Biệt Dược or Fun Calorie Tracker?

Thuốc Biệt Dược ships an update every 8 months, and Fun Calorie Tracker every 2 days. Most recently, Thuốc Biệt Dược was updated on November 1, 2026 and Fun Calorie Tracker on November 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.*