Support — Plain and Simple Tools
The app is a shelf of small tools. Each one does a single job, and each one is separate — a problem with one is not a problem with the app.
Getting started
Open the app and look at the shelf. Every tool says what it does, and what it will ask you for, before you tap it. Pin the ones you use to the tab bar — up to three of them.
Charge
Plug the phone in and leave it for a few minutes. Charge works by timing how long the battery takes to gain a step of charge, so it needs a little while before it can tell you anything. It shows that it is still measuring rather than inventing a number.
Why it will not show a figure straight away. iOS does not tell an app how many watts a charger is delivering — there is no way to ask. Any app that shows you an instant wattage is making it up. Timing the fill is the only honest method available, and it gets within about a fifth. The app explains this on the screen.
Why the figure moves. Charging is not linear: phones take power fastest when the battery is low and deliberately slow down as they fill, and they slow down again when warm. A charger measured at 20% and at 80% will not give the same answer, and neither reading is wrong.
Negatives
Use a lightbox, or any even backlight. The conversion reads the film's own clear edge to work out what the base colour is, so it needs to see that edge and it needs the light behind the frame to be even. A window works; a lamp pointed at the film does not.
Hold still while it focuses. The app waits for focus to settle before it captures, so a shot that never fires usually means it has not found focus — move slightly further away and try again.
You can import instead. If you have already photographed your negatives, pick them from your library rather than re-shooting them.
Where the results go. Straight into your photo library. The app uses the add-only permission, so it puts pictures in and cannot see anything already there — which also means it cannot gather its results into an album for you.
The camera will not turn on
Negatives needs camera access. Open Settings, find this app in the list, and switch Camera on.
If saving fails instead, it is the photos permission rather than the camera — same place in Settings, the row that allows adding photos.
It cannot reach the internet
That is deliberate, and it is not a fault. The app has no networking code in it at all, and a test fails the build if any appears. Nothing it does needs a connection.
Something else
Get in touch below. It's one person answering, so it may take a day or two, but every message gets a reply.