A stock checker is a simple idea: instead of you refreshing Apple's website, a program does it and tells you when something changes. For a launch as busy as the iPhone Duo, that difference matters. Here is how they work, what they can and cannot do, and what to look for before you hand over an email address or money.
What a stock checker actually looks at
Apple's website shows in-store pickup availability for each product at each Apple Store. When you choose an iPhone Duo configuration and select pickup, the page asks Apple's servers whether stores near you can offer it. A stock checker asks the same question about specific stores and configurations, on a schedule.
Every iPhone Duo configuration has its own part number, Apple's product code for that exact storage size and colour. There are eight per country: four capacities (256GB, 512GB, 1TB, 2TB) in two colours (Star White and Night Sky). Part numbers differ between regions, which is why a checker has to know which country's codes to use.
What it cannot do
Be wary of anything that claims more than this. A legitimate checker:
- Cannot reserve or buy a phone for you. You still reserve it with Apple.
- Cannot see stock before Apple shows it. If Apple does not list it for pickup, a checker will not know about it.
- Cannot guarantee anything. If a store gets two units and fifty people are watching, most of them will miss out.
Any service promising a "guaranteed iPhone Duo" for a fee is either reselling at a markup or not telling you the truth.
How often should it check?
More often is not always better. Apple's site is used by millions of people, and a good checker should behave politely. That means spacing out requests, grouping all configurations for a store into a single request, backing off if Apple signals it is busy, and only checking stores that people have actually asked about.
iPhone Duo Finder works exactly that way. We group checks by country and store, cap how many stores we check per run, and slow down automatically if Apple's servers push back.
Email vs push vs SMS
Speed of delivery matters as much as speed of checking. Email is universal and free to receive, and on a phone with notifications turned on it arrives in seconds. We send email alerts. If you sign up, add our sending address to your contacts so the alert does not land in spam, and turn on notifications for your mail app.
"Any" vs "exact configuration" alerts
There are two sensible ways to set up an alert:
- Any configuration. You will hear about the first unit of any storage and colour at your store. This is the best option if you just want an iPhone Duo as soon as possible. On iPhone Duo Finder this costs £5.
- Exact configuration. You will only hear when your specific storage and colour appears. It is quieter and avoids alerts you cannot use, but you may wait longer. This costs £10, because it is a more targeted service.
Choosing a trustworthy checker
Before you sign up anywhere, check:
- Do they say clearly that they are not Apple? Legitimate services do. We are not affiliated with Apple Inc.
- Do they explain what the fee pays for? Ours pays for the alert service, once, with no subscription.
- Are the terms clear before you pay? Ours are: the £5 or £10 fee is non-refundable once paid, and there is no guarantee of stock.
- Do they explain what happens to your data? We store your email, store, chosen option, payment status and sign-up time, only to send your alert.
- Do they take payment through a recognised processor? We use PayPal, so we never see your card details.
Doing it yourself
If you would rather not use a service, you can check manually on apple.com by choosing a configuration and selecting pickup. Check early in the morning and again around midday, and keep the page bookmarked. It works. It just takes patience.
When you are ready, choose your store and set up an alert. For background, see why the iPhone Duo keeps selling out.