# JS100 vs BKKChem

The clearest difference is update cadence: BKKChem at every 2 weeks against JS100's every 5 weeks. BKKChem also leads on iOS requirement (12.4 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

JS100 ships an update every 5 weeks, BKKChem every 2 weeks. The most recent releases landed on October 4, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | JS100 | BKKChem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (7 ratings)](https://appshunter.io/ios/app/js100/id999746366/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 55.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 170 MB | 20 MB |
| Requires iOS | 14.0 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Globetech Co., Ltd.](https://appshunter.io/developer/503840173) | [Department of Environment,BMA](https://appshunter.io/developer/1499042668) |

## What reviewers say

### JS100

[App page](https://appshunter.io/ios/app/js100/id999746366)

Access live traffic updates and news from Thailand's trusted traffic news organization. Stay informed about road safety in Bangkok, listen to radio streams, view maps, and connect with reporters. Includes emergency call functionality for 24-hour assistance.

**Highlights:** Live traffic event streams, Traffic information feed, JS100 Radio live stream, Map integration, Lost & Found section, Emergency call (SOS)

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

**In-app purchases:** none


### BKKChem

[App page](https://appshunter.io/ios/app/bkkchem/id1638258030)

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

**In-app purchases:** none


## Frequently asked questions

### Is JS100 free?

JS100 is free to download, with no in-app purchases.

### Is BKKChem free?

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

### Do JS100 or BKKChem have ads?

Neither JS100 nor BKKChem shows ads.

### Which is updated more often, JS100 or BKKChem?

JS100 ships an update every 5 weeks, and BKKChem every 2 weeks. Most recently, JS100 was updated on October 4, 2026 and BKKChem on September 29, 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.*