# csl. vs Contactless e

The clearest difference is rating: Contactless e at 2.9 against csl.'s 1.6. On price, review sentiment, ratings volume and update cadence there is nothing between them.

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

Contactless e holds the better App Store score, 2.9 against 1.6. Both are backed by a comparable volume of ratings — 23 and 9 respectively. Written reviews point the same way: 8% of csl.'s written reviews are positive against 14% of Contactless e's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 16, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | csl. | Contactless e |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.6 (23 ratings)](https://appshunter.io/ios/app/csl/id433378614/reviews) | **[2.9 (9 ratings)](https://appshunter.io/ios/app/contactless-e-channel/id1590998870/reviews)** |
| Number of ratings | **23** | 9 |
| Positive reviews | 8.3% of reviews | **14.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 176 MB | 37 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CSL Mobile Limited](https://appshunter.io/developer/340690342) | [Hong Kong Immigration Department](https://appshunter.io/developer/578918013) |

## What reviewers say

### csl.

[App page](https://appshunter.io/ios/app/csl/id433378614)

Manage your mobile service plan, monitor data and voice usage, and check your account balance. Access exclusive offers, coupons, and limited-period deals. Browse the latest mobile models and service plans with special pricing.

**Highlights:** Monitor data and voice usage, Manage roaming balance, Check account balance and billing history, Automatic credit card payment setup, Access coupons and limited-period offers, Browse latest mobile models and plans

**In-app purchases:** none


### Contactless e

[App page](https://appshunter.io/ios/app/contactless-e-channel/id1590998870)

This app allows eligible Hong Kong residents to enroll in a contactless e-Channel service. Generate a QR code on your phone for faster, more convenient, and hygienic immigration clearance by using facial verification without touching shared equipment.

**Highlights:** Enroll in contactless e-Channel service, Generate encrypted e-Channel QR code, Facial verification for immigration, Reduce contact with shared equipment, Faster and more convenient clearance, Requires "iAM Smart" app for registration

**In-app purchases:** none


## Frequently asked questions

### Is csl. free?

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

### Is Contactless e free?

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

### Which has better reviews, csl. or Contactless e?

Contactless e is rated higher. csl. averages 1.6 out of 5 from 23 ratings, while Contactless e averages 2.9 from 9 ratings.

### Do csl. or Contactless e have ads?

Neither csl. nor Contactless e shows ads.

### Which is updated more often, csl. or Contactless e?

csl. ships an update every 3 weeks, and Contactless e every 3 weeks. Most recently, csl. was updated on September 16, 2026 and Contactless e on September 22, 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.*