HistoryHound 2.3.7 Adds Atlas, Comet, Dia and Helium Support

St. Clair Software released HistoryHound 2.3.7 on 28 April 2026, a free update for licensed users that teaches the app to index four newer web browsers: Atlas, Comet, Dia and Helium. HistoryHound's job is simple to describe and surprisingly useful in practice: it builds a full-text index of every page you visit and bookmark, so you can later search for a phrase you half-remember rather than scrolling through a browser's title-only history. For students who now split their reading between a traditional browser and one of the new AI-assisted ones, this release closes a gap that would otherwise leave part of their research unsearchable.

What's new in HistoryHound 2.3.7

According to the official release notes, 2.3.7 is a focused update with one headline addition and a handful of practical fixes.

Support for Atlas, Comet, Dia and Helium

The main change is wider browser coverage. St. Clair Software's announcement describes three of the new additions, Atlas, Comet and Dia, as AI-enabled browsers, while Helium is a privacy-focused option. Once HistoryHound can read a browser's history and bookmarks, the pages you open in it are downloaded and indexed alongside everything else, so a single search covers all of them. These join a list that already includes Safari, Chrome, Edge, Firefox, Brave, Arc, Orion, Floorp, Opera, Vivaldi and the NetNewsWire feed reader.

A search field that stays visible

Previously, if you made the search window narrow, the search field could be pushed off the end of the toolbar. In 2.3.7 the field is always shown, however small the window gets. That matters if you like to keep HistoryHound in a slim column beside a document or a PDF.

Smarter handling of login pages

Pages whose web address contains "sign-in" are now treated as login pages and left out of the index, and the developer notes that password-protected pages are identified more reliably. The practical effect is fewer useless results pointing to sign-in screens rather than the content behind them.

Smaller refinements

• Holding the Option key lets you hide HistoryHound's icon from both the menu bar and the Dock, for anyone who prefers to summon it purely with a keyboard shortcut.
• Dates written in unusual formats in some locales are now handled correctly.
• Assorted bug fixes.

The release before it: 2.3.6

2.3.7 builds on version 2.3.6, which updated the app for macOS 26 Tahoe. That release also added support for Safari profiles and the Floorp browser, improved how text is extracted from web pages, and began indexing a page's keyword and description metadata when the page itself contains very little text. It also made the web preview pane follow the system's Light or Dark appearance.

Why it matters for students

Most coursework involves reading dozens of sources before you know which ones you will actually cite. The problem comes a week later, when you remember a statistic or an argument but not the site it came from. A browser's history only records page titles and addresses, which are often unhelpful. HistoryHound searches the words on the pages themselves, so typing a distinctive phrase such as a researcher's surname or a technical term will surface the article where you read it.

• Essay and dissertation research: recover a source you skimmed but forgot to save, then add it properly to your reference manager. Search filters such as site: and title: let you narrow results to a particular journal's website or to pages with a specific word in the title.
• Revision: find the explainer or lecture notes page you read earlier in the term by searching for a key concept, without having bookmarked it at the time.
• Coding and computing modules: track down the documentation page or forum answer that solved an error, even if you only remember part of the error message or a function name.
• Mixed browser habits: if you use Safari for university systems, Chrome for group projects and one of the newly supported AI browsers for exploratory reading, 2.3.7 means one search now reaches across all of them.

HistoryHound can also keep your history for longer than browsers typically retain it, which is helpful across a long dissertation project. Filtering out sign-in pages keeps the index focused on actual content, such as library databases and articles, rather than on the login screens in front of them.

Requirements and upgrade details

• macOS: St. Clair Software lists support for macOS 10.13 through macOS 27, running natively on both Intel and Apple silicon Macs.
• Cost of the update: 2.3.7 is a free update for all licensed HistoryHound users. Existing users can install it through the app's Check for Update option, and it keeps your licence details and indexed history.
• Trial: a fully functional 30-day trial is available from the HistoryHound website, so you can let it index your browsing for a while before deciding.

Get HistoryHound with a student discount

Student App Centre members get 30% Off HistoryHound, making it easier to add full-text search of your browsing history to your study toolkit. See the details on our HistoryHound student discount page. If you're not a member yet, you can start with a 7-day free trial of Student App Centre membership and explore the full range of Mac and iOS app discounts.