Free tools and open data

Free tools from Kobonatak built on real data with clear sources and dates.

• Monthly electronics price index
  32 devices in Egypt and Saudi Arabia on 22 October 2026, with CSV.
• Is this discount real?
  Discount calculator checked against prices we recorded.
• Installment vs cash
  Compare the cash price with an installment plan in Egypt or Saudi Arabia: total paid, extra over cash, flat…
• Appliance & AC electricity cost
  Work out how many kWh an AC or any appliance uses per month and how much it adds to your bill under the…