Comparison

Spark by CelcomDigi vs USMS

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

Head to head
About

Spark by CelcomDigi

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
Read full description

Get a 5G eSIM without visiting a physical store. Spark is the eSIM-only experience designed for a digital-first lifestyle, comes with app-powered experience that puts you in total control. No hidden fees or long-term contracts—just high-speed connection that stays within your budget. Spark First: A limited time newcomer plan for RM15 that comes with 20GB of uncapped speed data + hotspot and 100 mins of voice call SPARKWISE: RM 5 OFF x 6 months for everyone! Note: Only applicable to Spark Standard and Spark Plus Why Spark Hits Differently: • Instant eSIM Activation:  Get your number and get connected in under 5 minutes. • Total Flexibility:  Pause, resume or upgrade anytime.  Boosters from RM1:  Add extra GB / Minutes / SMS for just RM1.  • Global Roaming from RM4:  Touch down in 82 countries and stay connected instantly. No more hunting for local SIMs.  • Manage 5 Lines:  Control family or business lines from one login. • Live in-app support — Real help, real time.  Plans for Every Vibe From light browsing to heavy streaming, we’ve got a plan for you from RM12 to RM65/mth. • First: Exclusive plan designed for first timers to join the Spark family • Litei: The light-use plan. Start small & flex up when needed.  • Standard: Our 80GB Hero plan. The perfect sweet spot for streaming & browsing.  • Plus: The Beast. Massive 5G/4G data for heavy users who want to ditch WiFi. Need a quick boost? Flex Up with extra Data, Voice, or SMS—all starting from just RM1.  How to Get Sparked (in 3 Steps): • Download: Grab the app and check if your phone is eSIM-ready. • Pick: Choose your number and a plan that fits you.  • Activate: Follow the prompts and you’re live. No physical SIM, no waiting. Real Support, Real Fast: Get help when you need it with our Live In-App Support.

About

USMS

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
Read full description

USMS Mobile app offers you an enhanced users experience through our mobile app. Offers fast, easy, and safer way to manage your electricity and water bills. User can be able to access their account anytime and anywhere Features include: 1. Quick Top Up 2. Account details 3. Top up 4. Pay debt 5. History report 6. Update profile 7. E-Dealer

Screenshots

Spark by CelcomDigi4 screens
USMS3 screens

Verdict

The call

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.

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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard7 real differences · 3 level
Spark by CelcomDigi versus USMS: the parameters behind the verdict, then further details
ParameterSpark by CelcomDigiUSMS
PriceFreeFree
Rating4.7 (86 ratings) — better1.4 (14 ratings)
Positive reviews67.5% of reviews — better0.0% of reviews
Number of ratings86 — better14
Update frequencyMonthlyFortnightly — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.08.0 — better
Further details — not scored
Size125 MB77 MB
Age rating4+4+
DeveloperCelcomDigi Telecommunications Sdn BhdDST NETWORK SDN BHD

Customer experience

Spark by CelcomDigi

All ratings86 ratings
Positive90.7%
Neutral2.3%
Negative7.0%
Written reviews117 reviews
Positive67.5%
Neutral6.8%
Negative25.6%

USMS

All ratings14 ratings
Positive7.1%
Neutral0.0%
Negative92.9%
Written reviews11 reviews
Positive0.0%
Neutral9.1%
Negative90.9%

In-app purchases

None

Spark by CelcomDigi

No in-app purchases

None

USMS

No in-app purchases

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.

Other comparisons