PDF Merge and PDF Splitter + is a very easy-to-use app that allows you to quickly merge multiple PDFs into one PDF or split specified pages into a new PDF.

Put an end to the daily struggle in the Finder! Finder Windows is a floating panel which gives you instant access to the list of open Finder windows at any time. It solves the daily struggle of trying to reach the desired folders among the ever changing mess of open windows. Now you can just glimpse at the list and select the desired window.

Completely redesigned, The Clock 4 Bigger than ever.

MarkMyWords offers easy formatting and structuring functions for articles which will be published on the Web and remains platform-independent by using plain text documents.

Tampermonkey is the most popular userscript manager, with over 10 million users. It's available for Safari, Chrome, Microsoft Edge, Opera Next and Firefox.

Clipboard Manager is simple clipboard history manager for mac. It keeps all the changes your clipboard for later uses.

Greater control of the authorship process with Augmented Citation Copy, Augmented Glossary, Augmented Views, Cuttings & more.
When you are ready to share your work as a PDF you get an automatically created Reference section. You can also post to WordPress.

Ulysses is your one-stop writing environment for Mac, iPhone and iPad. Its pleasant, focused writing experience, combined with effective document management, seamless sync, and flexible export, make Ulysses the first choice for writers of all kinds.

Pastebot saves everything you copy so that you can quickly recall them in the future. Save and organize frequently-used clippings into custom pasteboards and create keyboard shortcuts to access pasteboards and paste specific clippings. Build filters with a live preview and apply them as you paste. Create keyboard shortcuts to quickly paste using your filters and export your filters to share with other Pastebot users. Pastebot is there when you need it and invisible when you don’t. Quickly access your clippings from any app and search, preview, or filter clippings before pasting. You can even set the order of clippings to paste in sequence.

Postbox 7 is a new email application that helps you organize your work life and get stuff done. It has all the elegance and simplicity of Apple Mail, but with more power and flexibility to manage even the most demanding workloads.

Cisdem ContactsMate (was Contact Manager) is a great contacts manager. It allows you to backup everything in Contacts; edit the Contacts fields; find, analyze, report, and fix dozens of problems with OS X Contacts; and export your address book to CSV, vCard, TXT, DocX, HTML, Excel, Numbers, and Pages formats for easy Contacts backup or sync. The release of version 3 adds new functionalities: make a group for contacts, batch-fix similar problematic contacts, and manually set suffix or prefix.

This is the full version of Reader, which includes basic annotations including highlighting and writing yellow notes.

The menu bar tends to get cluttered if you have lots of apps installed, and there’s no easy way to manage them on macOS, not to mention little customization for the status bar itself.

OmniFocus Standard and Pro are in-app purchases, with discounts for people who bought earlier versions of OmniFocus for Mac through the Mac App Store. Download the app for details.

ScreenFocus dims your screens. You don't have to click any button to dim a screen. It's dimmed automatically when you move the cursor away. By default, only the side screens are dimmed. Of course, you can change it within the app menu.