# HHT Compass

> HHT Compass (iPhone/iPad app by Diagonal Therapeutics, Inc..)

- Source: https://appshunter.io/ios/app/hht-compass/id6798015603 (this page in markdown: same URL + `.md`)
- Developer: [Diagonal Therapeutics, Inc.](https://appshunter.io/developer/6798015605)
- Category: Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 38 MB
- Languages: English
- Released: 2026-09-21
- Data updated: 2026-10-09
- User reviews in markdown: https://appshunter.io/ios/app/hht-compass/id6798015603/reviews.md

## What is HHT Compass?

HHT Compass is the patient diary app for the DIAMOND clinical study. It is intended only for enrolled study participants and study staff.
Participants record nosebleed episodes, including duration and blood-flow intensity. The app also provides a history, daily reminders, and options to report technical or data-related problems.
Access requires an email address, Patient ID, and Study ID provided by study staff. New accounts must be reviewed by the study team. Data is transmitted over TLS and stored encrypted.
The app requires a 4-digit PIN, with optional biometric unlock.


## Version history (last 2 releases)

### 1.1 — 2026-10-08

Minor fixes:
- default notification time is 9:00AM
- alignment on some screen headers

### 1.0 — 2026-09-21

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-09.*