Cart Sample App vs SpoolMate

This app helps to coordinate family or group shopping. Setup is easy. You first create a group. All you have to do is enter a group name (e.g. »My Family«) and your own name (e.g. »Michael« or »Dad« or whatever). Your shopping list can now be saved and synchronised. To allow other family members to view and edit the shopping list, they have to join the group. To do so, a sharing code in the form xxxxx-xxxxx and a name must be entered. Once the setup is done, there are two operating modes: * In shopping mode, you work through the shopping list in the supermarket. You tick off every item that ends up in your shopping cart on the list until it is empty. If another family member has any last-minute requests, these items will appear on your shopping list directly. * In planning mode, you can add items to the list for the next shopping trip. The ‘history view’, which lists all the items you have ever bought, is particularly useful: As the same items are usually bought again and again, they can be added to the shopping list with a single tap. Shopping items are assigned to one of ten predefined categories (fruit and vegetables, bread, etc.). This makes it easier to organise the list. You can show and hide individual categories. For example, if you are in the fruit and vegetables section, you can display only the items you find there. This is particularly useful if your shopping list is very long. This app is free and serves as an example for learning Swift programming. The code is described in the book »Swift -- Das umfassende Handbuch« by Michael Kofler.

Never get caught mid-layer with an empty spool again. Before you start a print, check SpoolMate. See exactly how much filament you have left, make sure you have enough for the job, then log what you used when you're done. It takes seconds and saves ruined prints. TRACK YOUR COLLECTION • See every spool at a glance with color-coded fill indicators • Check remaining filament before you start a print • Log filament used after each print in seconds • Full print history per spool • Supports all common materials — PLA, PLA+, PETG, ABS, ASA, TPU, Nylon, PC, HIPS, and more • Track both 1.75mm and 2.85mm diameter filament NEVER LOSE A SPOOL • Scan QR labels to jump straight to any spool (SpoolMate+) • Print scannable labels for your shelf or storage bins (SpoolMate+) • Low-stock notifications so you can reorder before it's urgent REORDER IN ONE TAP • "Buy More" button on every spool to quickly reorder filament • Searches by brand, material, and color automatically SPOOLMATE+ Upgrade once, own it forever. • Unlimited spools • iCloud sync across all your devices • QR label generation and printing • Full print history (free tier shows last 5) • No ads SpoolMate is built for makers who take their filament seriously. Whether you have 3 spools or 30, SpoolMate keeps your inventory honest.