The deadline you forget is the expensive one.

What NxtDue is

A place to write down every date that costs you something if you miss it — and a nudge, in good time, before each one arrives. Insurance policies, vehicle documents, warranties, AMCs, domain names, subscriptions, passports, licences. One list, sorted by how soon they matter.

The app is deliberately small. It does not budget for you, it does not connect to your bank, and it will never try to sell you insurance. It tracks expiry dates and tells you about them early enough to do something.

Three ideas it is built on

1. A reminder is useless if it arrives on the day

Renewing an insurance policy takes a week if it takes a day. So NxtDue works backwards from the expiry date, not forwards from today, and its interface makes urgency physical: a reminder that is safe sits raised off the surface, one that is close sits flush, and one that has already passed is pressed into the page. You can read the whole list without reading a single number.

2. Your paperwork should live next to the date

The policy PDF is only useful at the moment you need to claim, which is exactly the moment you cannot find it. Attach it to the reminder and it is wherever the date is. Files are private: they are never served from a public address, only through short-lived links minted for you at the moment you open them.

3. Software should not read your email behind your back

NxtDue can find renewal receipts in your inbox, and it is genuinely useful — most renewals announce themselves by email before they charge you. But it is off until you switch it on, it asks Google only for read-only access, it does not store the body of your mail, and what it finds is a suggestion you accept or dismiss. It has never created a reminder on its own and it is not built to.

What it does not do

• No advertising, and no advertising SDKs in the app.
• Your data is not sold, rented, or shared with data brokers.
• Your data is not used to train machine-learning models.
• No tracking of you across other apps and websites.
• No dark patterns around cancelling — you cancel in the App Store or Play Store, in two taps, and we never see it as a support ticket.
• No marketing messages. If you switch on WhatsApp reminders, the only thing that arrives there is a renewal you asked to be reminded about.

Where your data lives

On Microsoft Azure. Wherever in the world you use NxtDue, your account lives in Azure's Central India region — the Privacy Policy explains what that means if you are outside India. Traffic is encrypted in transit. Sign-in codes and session tokens are stored only as keyed hashes, so they cannot be read back out of the database even by us. There is no password to leak: you sign in with your mobile number and a one-time code.

You can export everything you have put in, and you can delete your account yourself from Settings — no email, no explanation, no retention team. The Privacy Policy spells out every one of these claims in detail, and the deletion page covers the rest.

Who builds it

NxtDue is used worldwide and built by an independent developer based in India — one person, not a company with a support queue. That has an upside and a downside. The upside is that the one address on the support page reaches the person who wrote the code. The downside is that replies take a day or two rather than an hour, and the roadmap moves at the speed of one pair of hands. Both seem worth saying out loud.