Starhub

[Bibi]

Circle Life is now offering $0/month 1GB Sim-only plans which comes with Caller ID/Free Incoming/30 min outgoing talktime. However there are add ons such as paying $10 per month for every 2 GB of data.

What you mention above is different from what Circles.Life customer service told me. The $0/mth plan comes with 1GB free caller ID.
NO free incoming calls. Total incoming + outgoing is 30mins. Free incoming SMS. Outgoing SMS is 10 i think. Every 1GB additional costs $5 which the person need to top it up via Circles.Life hp app. There is NO way to top up for free incoming calls for this plan. Corporate plan does not apply for $0/mth plan. This plan only suits pp who dont talk a lot via traditional voice calls.

Comparing M1 mySim20 (I think) plan to StarHub plan, M1 charges $20/mth for 5GB for a one year contract. no unlimited weekend data usage though.

The competition has intensified. Circle Life now allows top up $10 for additional 200mins outgoing calls and unlimited incoming calls.