Work · Case study
ActBy
Never miss a renewal. Every deadline that costs you money, in one place, with the last safe day to act.
The problem it attacks
Auto-renewals count on you forgetting. Miss a cancellation deadline and you are locked in for another term, paying for a service you no longer use. Return windows, warranty periods and document expiries fail the same way: quietly, and always at your expense.
The idea: the last safe day
For every contract, purchase or document you add, ActBy computes the last safe day to act: the final day you can still cancel, return, claim or renew before it costs you money. A purpose-built rules engine handles per-country notice periods and provider quirks, and the app reminds you 30, 14 and 3 days ahead, with the amount at stake in every notification.
What it tracks
- Contracts and subscriptions: phone, gym, insurance, energy, streaming
- Return windows for the things you buy
- Warranties, so repairs are claimed while they still can be
- Vehicle deadlines: registration, inspection, insurance
- Documents: passport, ID, driving licence, with validity warnings before travel
How it works
Photograph a contract or receipt. ActBy reads the provider, price, end date and notice period, and the deadline is tracked in seconds. When a date approaches, one tap opens a ready-made cancellation letter or the provider's cancellation page. Every time you act on a reminder, the app logs the money you kept.
Design decisions you can see
Money is the unit of urgency. Every deadline states what it costs if missed, so a passport renewal reads "800 EUR at stake" rather than a neutral date. Deadlines are shown as days remaining, counting down in the app's own voice.
Dates are set in monospace throughout, because a date is data and should be scannable rather than decorative. Each deadline also answers why this date: the passport example explains that many destinations require six months of remaining validity and that renewals take weeks, so the app moves the deadline six months earlier and says so.
The interface is fully localised, not merely translated. Six countries and five languages ship at launch, and the setting is labelled "where your contracts live", because the country changes the legal rules that generate the deadline, not just the words on screen.
The same privacy position as our other apps
ActBy never connects to your bank. Documents stay on the device, the app works offline, and everything can be exported at any time. Like Calivia Cook, the privacy policy is written from the architecture.
Status
Newly completed, with store listings prepared for six storefronts in five languages. The store listing will join this case study when the app reaches Google Play and the App Store.