Terms & Conditions

1. Roam Saver, is a no contract 4G postpaid subscription plan. For $7.77 /mth, it comes with a monthly local 100GB(4G), 300 local mins (VoLTE), 100 local sms. The plan also comes with a Free monthly roaming addon of 2GB sharing across MY, TH, ID, TW, PH, INDIA. As an added bonus, customers who successfully port in their mobile number from another Telco except Singtel, Gomo, Heya will enjoy a complimentary upgrade of all their 4G local data to 5G connectivity for free for 90 days. Expect bonus free addon to be added to your eligible port in number within 5 business days of successful porting.
2. Roam Plus, is a no contract 4G postpaid subscription plan. For $10.10 /mth, it comes with a monthly local 100GB(4G), extra local 100GB(4G) for 12-months, 1,000 local mins (VoLTE), 100 local sms. The plan also comes with a Free monthly roaming addon of 3GB sharing across MY, TH, ID, JP, S.KR, TW, AU, CN, HK, MACAU, PH, VN. As an added bonus, customers who successfully port in their mobile number from another Telco except Singtel, Gomo, Heya will enjoy a complimentary upgrade of all their 4G local data to 5G connectivity for free for 90 days and 28GB Local data for 12 months. Expect bonus free addon to be added to your eligible port in number within 5 business days of successful porting.
3. Roam Smart, is a no contract 4G postpaid subscription plan. For $15.10 /mth, it comes with a monthly local 100GB(4G), extra local 100GB(4G) for 12-months, 2,000 local mins (VoLTE), 100 local sms and a Malaysia roaming addon of 8GB forever for $5.00 per month. The plan also comes with a Free monthly roaming addon of 3GB sharing across MY, TH, ID, JP, S.KR, TW, AU, CN, HK, MACAU, PH, VN. As an added bonus, customers who successfully port in their mobile number from another Telco except Singtel, Gomo, Heya will enjoy a complimentary upgrade of all their 4G local data to 5G connectivity permanently, and a Free monthly roaming addon of 5GB sharing across JP, S.KR, TW, AU, CN, HK, MACAU, PH, VN for a period of 12 months. Expect both bonuses free addon to be added to your eligible port in number within 5 business days of successful porting. This special offer is available for a limited time and will end once a formal announcement is made.
4. Roam Eco, is a no contract 5G postpaid subscription plan. For $17.10 /mth, it comes with a monthly local 100GB(5G), extra local 100GB(5G) for 12-months, 1,000 local mins (VoLTE), 100 local sms and a 5G HLR addon of $7.00 per month that converts all local data into 5G connectivity. The plan also comes with a Free monthly roaming addon of 3GB sharing across MY, TH, ID, JP, S.KR, TW, AU, CN, HK, MACAU, PH, VN. As an added bonus, customers who successfully port in their mobile number from another Telco except Singtel, Gomo, Heya will get a 28GB Monthly Local data for 12 months. Expect bonus free addon to be added to your eligible port in number within 5 business days of successful porting.
5. Roam Power, is a no contract 5G postpaid subscription plan. For $22.10 /mth, it comes with a monthly local 100GB(5G), extra local 100GB(5G) for 12-months, 2,000 local mins (VoLTE), 100 local sms, a Malaysia roaming addon of 8GB forever for $5.00 per month and a 5G HLR addon of $7.00 per month that converts all local data into 5G connectivity. The plan also comes with a Free monthly roaming addon of 3GB sharing across MY, TH, ID, JP, S.KR, TW, AU, CN, HK, MACAU, PH, VN. As an added bonus, customers who successfully port in their mobile number from another Telco except Singtel, Gomo, Heya will get a Free monthly roaming addon of 5GB sharing across JP, S.KR, TW, AU, CN, HK, MACAU, PH, VN for a period of 12 months. Expect bonus free addon to be added to your eligible port in number within 5 business days of successful porting. This special offer is available for a limited time and will end once a formal announcement is made.
6. [Preferred Roaming Partners] To ensure a smooth connection, enable data roaming in your phone's settings and disable any other SIM cards. For each Roam plan subscription that comes with Free Monthly Roaming Data, be sure to connect to the following Telco once you reached your designation - (Japan > KDDI, KDDI_51, Softbank) (China > China Unicom, China Telecom) ( Australia > Optus, Telstra) (Vietnam > Mobifone, Viettel) (Hong Kong > HKT (CSL), CMHK) (Taiwan > TW Mobile, Chunghwa) (Macau: CTM, Hutchison Telephone) (Philippines > Globe Telecom, Smart) (South Korea > SK Telecom, KT Corporation) (Malaysia> Digi, Maxis) ( Indonesia > Telkomsel, XL) (Thailand > AIS, True Move) (India > Bharti, Vodafone)
7. [Telco under non-Singtel Network] refers to SIMBA/TPG, M1, My Republic, Circle.Life, Geenet, Changi Mobile, Gorilla Mobile, Starhub, Eight Telecom, redOne, CMLink, ViviFi, Zero 1
8. Effective 29 Aug 2024, Lite 4G, Prime 4G, Mega 5G and Super 5G SIM-only plans will be removed and no new sign-ups will be accepted, but existing customers on these plans will not be affected.
9. [FUP] Due to a recent increase in SMS-based scams, all of the aforementioned plans have a daily SMS limit of 300, as per our fair usage policy.
10. [Obligation] By subscribing to ZYM Mobile, you agree to the full T&Cs written here
11. [Obligation] Subscribers with ZYM Mobile's no-contract plans must remain subscribed for a minimum of 2 months. Prorate period is considered as the first month. Porting out during this period is permitted. However, any subscription payments made will be non-refundable.
12. [Number Port] Usually, it takes up to 5 working days to port-in a phone number from existing Telco to ZYM. From time to time, a subscriber's port-in may be delayed / fail due to many reasons, such as incorrect customer information, technical issues, or delays on the part of the previous carrier. In the event of a port-in failure, ZYM Mobile is not liable for any delay or inconvenience caused. No refund / compensation shall be considered. Know more about common Port-in failure here
13. [Number Port] Subscriber's port-in number must fulfill the obligation(s) from your existing Telco. ZYM Mobile is not liable for any early termination charges, or other related fee, imposed by your existing Telco. Know more about Port-in eligibility here
14. [Number Port] If subscriber initiates a port-out request before the end of the month, but the actual port-out occurs in the following month, you will be charged for the full month. In this situation, no partial refunds or prorated charges will be applied. To avoid this, please plan the port-out at least 5 working days in advance.
15. [Number Port] Subscribers may port-out their number, but any prorated or advance fees are non-refundable, and port-out requests will be rejected if the subscriber is under contract, the mobile number is suspended or terminated, or there is an outstanding bill.
16. [Billing] To avoid account suspension and eventually, termination, please ensure your outstanding bill is paid on time. If your account is terminated, you will not be able to retrieve back all mobile numbers associated with the account. To understand more on our billing cycles, refer to the FAQ here
17. [Billing] Each subscription plan is billed on 1st of each month and subscribers should expect to receive their the bill invoice by 5th of the same month.
18. [IDD] Calling from Singapore to other countries must have a valid IDD plan to do so. For more info, refer here
19. [Roaming] Roaming calls and SMS are chargeable. To view the rates and other T&Cs, read here
20. [Pay-Per-Use] After exhausting your allocated local voice minutes and SMS, you will incur a charge of $0.05 (Excl. GST) for each additional minute and SMS used.
21. [Blacklist] ZYM Mobile reserves the right to refuse service to customers who engage in excessive porting in and out activity.
22. [Blacklist] ZYM Mobile may refuse service to customers with previous outstanding balances. To be eligible for service, customers must settle any outstanding amounts in full before reapplying.
23. [Blacklist] ZYM Mobile reserves the right to refuse service to customers whose behavior is deemed harmful, or who are suspected of engaging in fraudulent or illegal activities.
24. [Scam Prevention] ZYM Mobile reserves the right to suspend any customer's mobile number(s) if a large volume of voice calls or SMS messages are made on a regular basis, indicating suspicious activity. Affected mobile number(s) will be required to complete an identity verification process face-to-face and provide a valid reason for the high volume of calls or messages before reinstating the mobile services.
25. [SIM Order] To ensure a smooth SIM activation process, customers MUST accurately enter their Name, NRIC/FIN number, and Date of Birth during the SIM card ordering process on www.zym.sg. These details will be used to verify the customer's identity at the time of SIM activation.
26. [SIM Order] While you can cancel your SIM order by contacting ZYM customer care, kindly note that no refund will be issued if you chose SIM delivery (Drop into mailbox / Deliver to doorstep), as the order has already been processed.
27. [SIM Order] If the customer provides incorrect personal or delivery information, they are responsible to reorder the SIM card again through the ZYM website (www.zym.sg). Refunds (if any) will not be issued for previous orders due to the order being already processed.
28. (SIM Order) Please activate your SIM card within 14 days from date of order if you've opted for delivery to your mailbox or doorstep. After 14 days, the SIM card will expire and become unusable. However, if you opted for self-collection of SIM card, you must collect your SIM card within 14 days of ordering it. If you do not collect it by the deadline, ZYM Mobile will automatically cancel your order.
29. [Promotion] From 19 to 31 Dec 2024, all Telco port in, except Singtel, Gomo, Heya, to a Roam Plus Plan shall get an additional Monthly 2GB Roaming Msia for a period of 12 months.
30. [From 12 Dec 2024 until stock lasts] New subscribers who activate any ZYM mobile plan will receive a $90 selected Samsung Tab eVoucher & $50 selected accessories eVoucher for Samsung watches & buds at 3 Samsung Experience Stores: Westgate, Plaza Singapura, or VivoCity. New subscribers will also receive a $70 eVouchers for Apple AirPod Pro Gen 2 (USB-C) for selected 5 Singtel Exclusive Stores at Junction 8, ION, Harbour Front, Hougang Mall, Compass One and HQ Ubi. Each eVoucher can be used for 1 item at a time and can be combined with other prevailing promotions at these stores only. For more detailed T&Cs, refer here
31. [Promotion] *Between 19 Nov 2024 - 15 June 2025, all new subscribers who order a simcard with any ZYM mobile plan and have entered valid promo/referral code JACKPOT in www.zym.sg, will get 1x chance to win 2 return tickets to Taiwan with Singapore Airlines, worth $2,000, after you have successfully activate the SIM card! A total of 1 winner shall be selected. Winners will be announced on ZYM Facebook a week after the end of campaign, and contacted via email, WhatsApp, or SMS for collection.
32. [Promotion] *Between 01 Dec - 15 Jun 2025, all new subscribers who order a simcard with any ZYM mobile plan and have entered valid promo/referral code in www.zym.sg, will get an additional chance to win 2 return tickets to Taiwan with Singapore Airlines, worth $2,000, after you have successfully activate the SIM card! A total of 1 winner shall be selected. Winners will be announced on ZYM Facebook a week after the end of campaign, and contacted via email, WhatsApp, or SMS for collection.For more detailed T&Cs, refer here. Occasionally, we partner with businesses to offer special promo codes with unique prizes. These promotions will be unannounced.
33. [Promotion] As part of year end and new year promo, if subscribers activate a Roam Plus, Smart, Eco or Power plan between 16 Dec 2024 - 31 Jan 2025, they shall receive a bonus of 10GB Malaysia Roaming data every month for a period of 12 months. This bonus addon is not applicable Roam Saver plan.