Safaricom PostPay vs prepaid monthly data plans: which is better value?

Safaricom’s website lists two kinds of monthly plan: prepaid data plans, where you pay first, and PostPay All-In-One plans, which add minutes and SMS and are billed at the end of the month. The data costs differ, but the plans do not give you the same things, so a cost per GB comparison alone is not enough. Figures were read from Safaricom’s pages on 11 November 2026.

The two kinds of plan side by side

At KSh 1,000 PostPay gives slightly more data (8GB against 7GB) plus calls and SMS. At KSh 2,000 and KSh 3,000 the prepaid plans give more data (20GB against 17GB, and 40GB against 27GB), but no minutes or SMS.

What to think about

• Do you call and text a lot? If so, the minutes and SMS in PostPay may be worth more than the extra data.
• Billing: PostPay is paid at the end of the month, and Safaricom’s page asks you to choose a credit limit. Prepaid is paid first, so you cannot overspend.
• Setting up: prepaid plans are bought through *544# or the MySafaricom app. PostPay needs to be set up with Safaricom.
• Larger needs: PostPay goes up to 100GB with 7,500 minutes for KSh 10,000. The prepaid list stops at 40GB for KSh 3,000.

Full PostPay list

The cost per GB for PostPay counts the data only, so it overstates the real cost if you use the minutes and SMS. See the Safaricom data plans page for the prepaid plans and the compare tool to put plans side by side. Confirm all prices with Safaricom before you decide.