This week we check the weather, take a nap, edit photos on our Macs using Apple Pencil, and enjoy Catalina’s Catalyst apps.

Twitter killed off its desktop app for Mac in early 2018. Now, a year-and-a-half later, an official Twitter app has made its way back into the App Store.

And it’s all thanks to macOS Catalina’s Catalyst framework.

Developers using Apple’s system to convert iPad software to macOS say Catalyst still needs lots of work before it can fulfill its promise.

The functionality is mostly there, but some features are missing and there are complaints about the style of the resulting apps.

Summer might be almost over, but Apple’s newest iPads are ready for the beach — thanks to the ultra-rugged Catalyst case.

Now available for the most recent iPad Air and iPad mini, Catalyst makes your tablet completely waterproof, and keeps out unwanted debris like sand and dust. It can also handle accidental drops.

Apple made the iPhone water-resistant years ago, but the iPad lineup is yet to get the same treatment. If you have a real urge to take yours swimming despite this, you need the new rugged case from Catalyst.

With an IP68 rating, the Catalyst case protects your iPad Pro in water more than six-feet deep. It also offers military-grade drop protection.

If you upgraded to an iPhone 6s, chances are the case on your old 6 fits just fine. But if the old case is waterproof, don’t go dropping that 6s in a puddle.

The iPhone 6s is taller, wider and thicker by 1/100th of an inch in either direction, hardly noticeable in hand but enough to compromise the protection on a waterproof case.

Catalyst, an accessories company favored by Apple users unafraid of a little water on their devices, has rolled out a new waterproof case for the iPhone 6s and 6s Plus.

Accessories company Catalyst likes to assume the extreme in everybody. Its marketing wants us to fret not about getting our iPhone or Apple Watch wet or dirty. Catalyst projects the confidence that it has your investment protected.

So, less than a week after Apple announced a new iPad Pro, Catalyst is touting the specs of a military-tough iPad Pro case that will be available after the first of the year.

While Apple doesn’t recommend submerging the Apple Watch in water, there have been a number of swimmers who say their watches have held up to workouts in the pool.

But since Apple probably won’t honor a warranty for a Watch that stopped after a shower, why risk it? Catalyst, whose waterproof iPhone cases come highly rated by customers and tech journalists, has introduced a line of waterproof cases for the Apple Watch.