About SIM Only SG
A free comparison tool for Singapore SIM-only mobile plans, built because checking multiple providers by hand every time you want to switch is a terrible way to spend an evening.
Data definitions
- Tracked plan
- A currently active plan represented in our public comparison dataset.
- General-public plan
- An active plan classified for general-public eligibility.
- Age-restricted plan
- An active senior or student/NS plan excluded from general-public market statistics.
- Active plan
- A plan currently considered available in our dataset; confirm on the provider site.
- Discontinued plan
- A plan manually marked inactive when identified as no longer available; it is omitted from current comparisons.
What the site does
SIM Only SG lists current SIM-only price plans from Singapore's major telcos and MVNOs in one table, side by side: monthly price, local data, talktime, SMS, roaming data and international direct-dial calls. Because MVNOs ride on one of the four national networks, each plan also shows which network actually carries it. When a district is selected, recommendations can incorporate SGSIMONLY's district-level network indicators. Coverage indicators do not guarantee indoor reception or actual performance at a specific location.
7 age-restricted plans are excluded from general-public market statistics.
What SIM Only SG adds
- Normalises plan details from different provider pages into one consistent format.
- Calculates comparable figures such as yearly cost and price per 10GB.
- Highlights plan attributes that are easy to miss — contracts, network type, roaming regions, age limits.
- Matches plans to your stated requirements with an open, explained score.
- Tracks plan changes over time in a public change log.
- Shows the network behind each MVNO on the coverage page.
- Maintains market benchmarks such as median price and data on insights.
How the plan data is gathered
The plan list is not typed in by hand and is not a static file. Each provider in the database carries the address of its own published plan pages. On a schedule, the site reads those pages, and a language model extracts the structured details — price, data, talktime, SMS, roaming and IDD terms — which are then written back to the database and stamped with the date they were last checked. The same plan name is updated in place rather than duplicated, so the table stays a single source of truth.
Automated extraction is fast but not perfect. Promotions, introductory rates and fine print can be missed or read late, so every plan links back to the provider's own page and the advice on this site is always the same: confirm the price and terms directly with the provider before you sign up.
Where coverage figures come from
District coverage indicators are derived from nPerf's crowdsourced measurements of Singapore's mobile networks, combined with published regulator figures. nPerf does not offer a public data feed, so the site stores its own snapshot of the scores per district and links out to the live nPerf map for the current picture. Treat the scores as a relative guide between networks, not a promise about the signal in your flat.
What this site is not
- It is not owned by, endorsed by, or affiliated with Singtel, StarHub, M1, Simba, GOMO or any other provider named here.
- It is not a shop. You cannot buy a plan through SIM Only SG, and no order data passes through it — sign-up happens entirely on the provider's own site.
- Advertising on this site is served by Google, and it is not what decides a ranking. No provider pays to sit higher — recommendations are computed from the plan attributes and coverage scores in the database.
- The Singapore SIM-only comparison is independent and unsponsored. No telco or MVNO pays to appear, to rank higher, or to be recommended, and there are no affiliate links in that part of the site.
- The travel eSIM section is different, and it says so on the page: some of the “Get eSIM” links are affiliate links, and this site may earn a small commission if you buy through one. It never changes your price, and it never changes the order plans are listed in — ranking there is computed from price, data and price per GB exactly as it is everywhere else.
- It is not a substitute for the provider's own terms, which always take precedence.
Who runs it
SIM Only SG is one person's personal project, not a company. It costs money to keep running — hosting, the database, and the AI used to read provider pages. Those costs are covered three ways: the optional PayNow coffee on the homepage, Google advertising, and affiliate commissions from the travel eSIM section. No one is obliged to pay anything, and the comparison tools stay free either way.
Spotted something wrong?
Outdated prices and misread plan details are the most useful feedback this site can get. Head to the contact page and tell me which provider, which plan and what the correct figure is.