# Custos – Subscription Tracker — Cancel before the deadline

> Cancel before the deadline (iPhone/iPad app by Henri Dominique Rapin.)

- Source: https://appshunter.io/ios/app/custos-subscription-tracker/id6798195955 (this page in markdown: same URL + `.md`)
- Developer: [Henri Dominique Rapin](https://appshunter.io/developer/6796402184)
- Category: Lifestyle, Finance
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 25 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Chinese (Simplified, China), European Spanish
- Released: 2026-08-11
- Data updated: 2026-10-06

## What is Custos?

One forgotten subscription at $12 a month is $144 a year that nobody decided to spend.

It is almost never the price that catches you out — it is the date. Contracts renew on their own, and the notice period expires weeks before the charge. By the time the line shows up on your statement, it is already too late.

Custos watches that date. Not the payment date — the one before it, the only one you can still act on.

Free, no account, no ads.

YOUR SUBSCRIPTIONS ARE NOBODY ELSE'S BUSINESS

Custos has no server. Your data stays on your devices and, if you turn syncing on, in your private iCloud space — which we cannot access. The app's only network traffic goes to Apple's own services.

WHAT CUSTOS DOES

• Warns you on the right day — The cancellation deadline, worked out from the notice period and the next payment. A notification on the exact day, plus calendar reminders at 1 month, 15 days, 7 days, 1 day and the day itself.
• Tells you what it all costs — Adjusted monthly and yearly cost, whatever the billing cycle, and a breakdown by category.
• Spots free trials — "Free until…" while the first payment is still ahead. A trial never inflates your monthly cost, but it does trigger the alert: that is where it has to stop you.
• Writes the letter for you — Email or registered letter, ready to copy, with your details already filled in.
• Keeps the proof — Date sent, channel, reference, acknowledgement. Something to point to if you get charged anyway.
• Catches silent price rises — Three dollars more goes unnoticed; Custos works out what it costs over a year.
• Reads your bank statement — Drop in a CSV or OFX file: Custos spots the recurring debits and suggests the subscriptions behind them. The file is read on your device, with no connection to your bank, and nothing is saved until you confirm.
• Shows what is about to leave your account — This month's outgoings, split by account, and a day-by-day schedule.
• Knows who pays for what — Bank accounts and subscribers, for a household or a small team.
• Explains it all — Twelve illustrated chapters inside the app, on Custos and on cancellation notice periods.
• Lets you leave — CSV export and a full backup, whenever you want.

ON IPHONE, IPAD AND APPLE WATCH

• Home Screen widgets in three sizes, and Lock Screen widgets.
• Live Activity — The countdown to your next deadline on the Lock Screen and in the Dynamic Island.
• Apple Watch — The watch app and its "Cancellation deadline" complication.
• Siri and Shortcuts — Ask out loud for your deadlines over the next 30 days.
• On iPad — The list and the details side by side, with the handbook in the left column.
• Full Dark Mode, Dynamic Type and VoiceOver.
• Optional iCloud sync with the Mac.

Install Custos, enter your subscriptions once, and let it watch the dates for you.


## Version history (last 3 releases)

### 1.2.0 — 2026-09-24

Custos now tracks your free trials

Custos can now recognise the free trials you've signed up for. A free trial doesn't stop — it converts. While the first payment is still ahead, the list shows "Free until…" next to the amount: one says you're not paying yet, the other says what's coming. A trial in progress stays out of your monthly cost, but stays in the alerts — that's where it has to stop you.

Custos on Apple Watch

The watch app and its "Cancellation deadline" complication: your next deadline on your wrist, without reaching for your phone.

The handbook, inside the app

Twelve illustrated chapters: how to use Custos, and what you need to know about cancellation notice periods.

Import a bank statement

Drop in a CSV or OFX statement. Custos spots the recurring debits and suggests the matching subscriptions, telling you how sure it is about each one. The file is read on your device: the app connects to no bank, and saves nothing until you confirm.

The cancellation record

What happens after the letter: the date you sent it, the channel, the reference, and the acknowledgement. Something to point to if you get charged anyway.

Price history

A three-dollar increase goes unnoticed: the charge looks like the last one. Custos keeps it, works out what it costs over a year, and tells you.

What leaves your device

A screen listing the only places your data can go, and their current state.

### 1.0.1 — 2026-08-14

Improved stability, addition of the creation of Categories, Account and Subscriber to the creation of the subscription.

### 1.0 — 2026-08-11

No release notes.

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## More apps by Henri Dominique Rapin

- [Durabilis – Warranty Tracker](https://appshunter.io/ios/app/durabilis-warranty-tracker/id6796402182)
- [FilamentKeeper](https://appshunter.io/ios/app/filamentkeeper/id6796453870)
- [Vinum](https://appshunter.io/ios/app/vinum/id6796801426)
- [Taceo](https://appshunter.io/ios/app/taceo/id6798222364)
- [Schama: 3D Print Catalog](https://appshunter.io/ios/app/schama-3d-print-catalog/id6798260631)

All apps by Henri Dominique Rapin: https://appshunter.io/developer/6796402184

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-06.*