In case you missed this here.
Safaricom is launching a product called Flex in their market segmentation plans, just like they did with Blaze, this is for the next demographic. From the article I've quoted what closest explains Safaricom Flex.
We got wind that Safaricom is planning to launch a new service sometime next week, whether it is a retaliation to Express Wi-Fi or not, we don't know. Dubbed "FLEX" the new service will allow customers to use their airtime to buy "Flex units" which can then be used for data, voice and SMS with no fixed allocation to any of the three, thus it gives you the flexibility of using the bought bundle for either of the three.
One (1) Flex unit gets you 20 Seconds of talk time or 3 MB of data or KES.3 worth of sms. You can then purchase Daily Flex @ KES.99 valid for 24 hours, weekly Flex @ KES.599 valid for 7 days and a monthly Flex @ KES.2,499 valid for 30 days.
From the above information, this means that you can get 297MBs for the daily Flex, 1797MBs for the weekly Flex and 7497MBs for the monthly Flex. Assuming that a shilling of airtime is equal to 1 Flex unit and that you will only use your Flex (Flexes?) for data.
Now this launches tomorrow, postponed from the date it was supposed to launch earlier in the month. I won't pretend I already understand fully what this is, we'll be there to listen in on what vision Safaricom has with this.