Comparison

Spark by CelcomDigi vs Theosys

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
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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

Theosys

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Parishinfo announce release of the FREE iPhone Mobile App with 34 Modules. The App is available to Parishioners, Priests, Parish Priests and Bishops. The app supports English as well as Local languages. It is an excellent medium for parishioners to access information from parish on their mobile. Priests can also access all important information about their parish and stay connected with parishioners and co-priests from Mobile Parish Timings: This is available to Parish Priest and Members. Mass timings and other liturgical events of all week days. The intent is to make this information available to members instantly, including that may have changed after the previous Sunday announcements News Bulletin: Each parish can upload their news. Diocese may edit and publish to parish or Everyone. Diocese can also publish news to everyone or priests and parishes. The intent is to create a media platform to reach out to everyone instantly. Parish Announcements: This is available to Parish Priest and Members. This will cover all parish announcements as well as marriage banns. The intend is to make this information available to members so that they can access it during the week. Bishops Programmes: Available to parishes, priests and bishops to view confirmed, public programmes of all bishops. If the appointment is private, it will display Engaged. When a Bishop login to his module, he can add, edit, confirm, decline and view all appointments. The app will sync with the entries done by Secretary. Bishop can also directly call or email from the app. Catechism: This will display details of catechism students of that particular family. Details include, marks, date if a student is absent in catechism, teacher name and contact details, Class, medium and division. The intend is to monitor children's catechism activities by their parents. Member Birthdays, Wedding Anniversary & Priest Birthday, Feast: Members can view Birthday, Wedding Anniversary list. They also get list of Priests and Bishops celebrating Feast or Birthday on that day. You can Call, SMS, Email or Call directly from the App. This module is available to Priests and Bishops as well. Member, Priest Death Anniversary: This will list names of departed priests and members daily. The intent is to make this record so that the next generation knows about the departed members, priests and bishops. Parish Calendar: This is for parish priests to record parish events and routine tasks. The intent is to help parish priest to keep a tab on his routine tasks from wherever he is and maintain it. It will also help the new incoming parish priest to know the events that he has to follow in that parish Pastoral Calendar: Maintained by diocese and made available to parish Priest, priest and Bishop. This will record all events of the diocese for the information of Priests and Bishops. Priests and Bishops can know the programmes of the diocese for 3 years Liturgical Calendar: The app is available to everyone. It will display, daily readings, daily prayers and special liturgical events. This make daily prayers more meaningful, avoid monotony, remind feast of saints and special occasion prayers so that it is available to members during evening prayer as well as on the go. Family List: List of all Families, grouped into Family Units/Ward for Parish Priest with direct Call, SMS, Email. Priests List: List of all Priests with updated contact details for Priests and Bishops with direct Call, SMS, Email. Parish & Diocese Functionaries List: List of office bearers and departmental heads with updated contact details for Parishioners, Priests and Bishops with direct Call, SMS, Email.

Screenshots

Spark by CelcomDigi4 screens
Theosys4 screens

Verdict

The call

The clearest difference is ads: Theosys at none against Spark by CelcomDigi's shown. Theosys also leads on iOS requirement (12.0 vs 16.0). On price, update cadence, 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.

UpkeepUpdate frequency

Spark by CelcomDigi ships an update monthly, Theosys every 6 weeks. The most recent releases landed on October 24, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 8 level
Spark by CelcomDigi versus Theosys: the parameters behind the verdict, then further details
ParameterSpark by CelcomDigiTheosys
PriceFreeFree
Rating4.6 (86 ratings) — better—
Positive reviews67.8% of reviews—
Number of ratings86 — better—
Update frequencyMonthly — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.012.0 — better
Further details — not scored
Size125 MB37 MB
Age rating4+4+
DeveloperCelcomDigi Telecommunications Sdn BhdTheosys Infotech Private Limited

In-app purchases

None

Spark by CelcomDigi

No in-app purchases

None

Theosys

No in-app purchases

Questions

Is Spark by CelcomDigi free?
Spark by CelcomDigi is free to download, with no in-app purchases.
Is Theosys free?
Theosys is free to download, with no in-app purchases.
Do Spark by CelcomDigi or Theosys have ads?
Spark by CelcomDigi shows ads; Theosys does not.
Which is updated more often, Spark by CelcomDigi or Theosys?
Spark by CelcomDigi ships an update monthly, and Theosys every 6 weeks. Most recently, Spark by CelcomDigi was updated on October 24, 2026 and Theosys on October 1, 2026.

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