# Spark by CelcomDigi vs USMS

The clearest difference is review sentiment: Spark by CelcomDigi at 68% against USMS's 0%. Spark by CelcomDigi also leads on rating (4.7 vs 1.4) and ratings volume (86 vs 14). USMS's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, 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.

Spark by CelcomDigi holds the better App Store score, 4.7 against 1.4. That said, the two scores are not equally well evidenced: Spark by CelcomDigi has 86 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 68% of Spark by CelcomDigi's written reviews are positive against 0% of USMS's.

Spark by CelcomDigi ships an update monthly, USMS fortnightly. The most recent releases landed on August 31, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Spark by CelcomDigi | USMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (86 ratings)](https://appshunter.io/ios/app/spark-by-celcomdigi/id1324469029/reviews)** | [1.4 (14 ratings)](https://appshunter.io/ios/app/usms/id1625804307/reviews) |
| Number of ratings | **86** | 14 |
| Positive reviews | **67.5% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 125 MB | 77 MB |
| Requires iOS | 16.0 | **8.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CelcomDigi Telecommunications Sdn Bhd](https://appshunter.io/developer/391897541) | [DST NETWORK SDN BHD](https://appshunter.io/developer/1625804309) |

## What reviewers say

### Spark by CelcomDigi

[App page](https://appshunter.io/ios/app/spark-by-celcomdigi/id1324469029)

A digital-first mobile experience offering instant eSIM activation and flexible plan management. Control multiple lines, upgrade or downgrade plans, and access support all within the app.

**Highlights:** Instant eSIM activation, Flexible plan management, Manage up to 5 lines, Affordable plans from RM15/month, On-demand roaming, Live in-app support

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

**In-app purchases:** none


### USMS

[App page](https://appshunter.io/ios/app/usms/id1625804307)

Manage your electricity and water bills with this app. It provides a fast, easy, and secure way to access your account, make payments, and view your billing history from anywhere.

**Highlights:** Quick top-up, Account details access, Bill payment, Debt payment, History reports, Profile updates

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spark by CelcomDigi free?

Spark by CelcomDigi is free to download, with no in-app purchases.

### Is USMS free?

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

### Which has better reviews, Spark by CelcomDigi or USMS?

Spark by CelcomDigi is rated higher. Spark by CelcomDigi averages 4.7 out of 5 from 86 ratings, while USMS averages 1.4 from 14 ratings.

### Do Spark by CelcomDigi or USMS have ads?

Spark by CelcomDigi shows ads; USMS does not.

### Which is updated more often, Spark by CelcomDigi or USMS?

Spark by CelcomDigi ships an update monthly, and USMS fortnightly. Most recently, Spark by CelcomDigi was updated on August 31, 2026 and USMS on September 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*