A few weeks ago, we posted an article discussing the effect of the data block size employed by different telcos. The larger the block size, the larger the discrepency in the recorded usage on phone and on app. This is especially in the case of small byte size data like WhatsApp is being used. e.g. you send a message “Hello” will be counted as 1 MB instead of 1 KB or 10 KB. Calculation of usage is rounded up to the nearest MB in this case. You can read at the link below. Below is the updated chart with inclusion of new MVNO – ViViFi.

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Here is the updated chart