Try Rendel in a carrier's app.

Kestrel is a made-up carrier with Rendel inside. Ask about a bill, your data, roaming, a cheaper plan or an outage.

Ask Kestrel

Or type your own in the app. Answers are written for this demo.

What Rendel did inside Kestrel, as it happened.

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Ask something, and each step shows up here.

Each question above, and the answer the demo gives, in words. Anything that changes something waits for the user's tap.

Why is my bill higher this month?: Your October bill is €53.40, €18.00 more than in September, because of calls to Germany and roaming in Greece.
How much data do I have left?: You have 8.8 GB left for the next 12 days. At your usual 0.7 GB a day, that lasts until your data renews on 23 Oct.
I'm going to Germany for a week. Add a roaming pass: For a week in Germany, the Europe 7-day pass covers you: 5 GB for 7 days at €9.00. Neither pass renews.
Is there a cheaper plan for how I use it?: Yes. Your last six months peaked at 23.1 GB, so Smart 25 would save you €7.00 a month, €84.00 a year.
My home internet is slow: It's not your line: there's an outage in Moda and Caferağa, Kadıköy. Engineers expect to fix it by 18:00 today.
I want to upgrade my phone: You've paid 20 of 24 months on your Kite 7, so you can upgrade now. Trade it in and the €74.00 left is covered.

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