# JointSignal: RA Tracker — Rheumatoid Arthritis Diary

> Rheumatoid arthritis daily health tracker and report generator for rheumatologists. (iPhone/iPad app by SCOTT NATHAN HAINES.)

- Source: https://appshunter.io/ios/app/jointsignal-ra-tracker/id6806740873 (this page in markdown: same URL + `.md`)
- Developer: [SCOTT NATHAN HAINES](https://appshunter.io/developer/6806740875)
- Category: Health & Fitness
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 18.0 · 10 MB
- Languages: American English
- Released: 2026-09-14
- Data updated: 2026-10-05
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/jointsignal-ra-tracker/id6806740873/reviews.md

## What is JointSignal?

An honest record of how you have actually been.

A minute a day adds up to a picture nobody can reconstruct from memory in a fifteen-minute appointment. JointSignal turns your daily check-in into a report worth handing your rheumatologist.

THE ONE RULE

The app never fills in a blank for you. A question you skip stays unanswered — it never quietly becomes a zero, and a day you missed never appears on a chart as a good day. A report is only useful to a clinician if everything on it is something you actually said.

WHAT IT TRACKS

• The daily check-in — pain, overall status, fatigue, sleep and mood, each a single tap on a 0–10 scale, and morning stiffness in minutes. Flare days get a switch. Under a minute, by design.

• The 28-joint count — every joint your rheumatologist scores, plus the neck and both feet, including the finger joints. Tap targets built for hands with active RA.

• Apple Health, read-only — steps, walking speed, stair speed, sleep, heart rate and blood pressure sit directly under what you reported, on one shared time axis. The app requests no write access and never alters your Health record.

• A calendar you can read at a glance — every day coloured by how bad it was, flare days marked, and gaps shown as gaps.

• Medicines and adherence — dose by dose, with changes marked on every chart. A dose you never answered is excluded from the percentage, not counted as missed.

• Side effects, bloods and appointments — with reference ranges, and reminders so a blood draw is never missed before a review.

• Questions for your specialist — saved as they occur to you, then worked through in a view built for large type and one hand.

• The weather, if you want it — temperature, humidity and air pressure under your pain score. The app shows both and draws no conclusion.

• Your data, yours — export it as CSV or JSON, for a spreadsheet or an AI assistant. Blanks stay blank.

• Backups that happen without you — one a day to your own iCloud Drive, thirty kept.

THE REPORT

Two or three pages of black ink on white paper: coverage, trends, joint counts, adherence, blood results with reference ranges, flare days and your notes. Every figure traceable to something you entered. Export it as a PDF and send it however you like.

PRIVACY

No account. No server. No analytics, no tracking, no third-party code of any kind. Your record lives on your phone, and your backups go to your own iCloud Drive. The developer never receives your health information — the app contains no code capable of sending it.

Weather is optional and off by default. Switched on, it sends your approximate location — never anything you recorded — to Apple's weather service, and does not store it.

WHAT IT IS NOT

JointSignal does not diagnose anything and it is not medical advice. It records what you tell it and shows you the patterns. Your rheumatologist does the rest. DAS28 is calculated from joint counts you enter yourself, and is labelled self-reported everywhere it appears — it is not a substitute for your rheumatologist examining your joints.

Never delay seeking medical attention because of something this app did or did not show you.

WHY IT EXISTS

I'm Scott. I have rheumatoid arthritis. I went looking for an app that would let me track it properly and could not find one — the apps I tried covered several conditions passably rather than one condition well, and none of them read Apple Health. So I wrote this one for myself, and then thought other people living with RA might want it too.

SUBSCRIPTION

JointSignal is free to download, and recording is free for your first 7 days with nothing to sign up for. After that, recording new days needs a subscription. A lapse never removes what you recorded — reading, the charts, the calendar, the report and every export stay yours.

Terms of Use: https://jointsignal.app/terms

Apple's standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Privacy Policy: https://jointsignal.app/privacy

## Key features

- Daily health metric tracking (pain, fatigue, stiffness)
- 28-joint count
- Apple Health integration (read-only)
- Visual calendar with condition overview
- Medication and adherence tracking
- Side effect and blood test logging
- Customizable reports for specialists
- Local data storage and iCloud backups

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| JointSignal Annual | $39.99 | per year |
| JointSignal Monthly | $3.99 | per month |


## Is JointSignal safe?

Not enough ratings yet to assess JointSignal.

## Is JointSignal legit?

JointSignal: RA Tracker appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for JointSignal is 65 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/jointsignal-ra-tracker/id6806740873/reviews.md

### 5/5 — Finally a place for everything

*2026-09-20, version 1.2*

Before Joint signal I was constantly switching between notes on my phone and random other apps. Now I can finally have all of my data in one place. I really like the joint count feature as well as being able to see patterns in my symptoms to inform my rheumatologist.

### 5/5 — Excellent RA symptom tracker

*2026-09-18, version 1.0.3*

An excellent, easy to use symptom tracker built specifically for RA. Great to have apple Health integration and reminders for logging, blood tests and rheumatology appointments. I like that the app is made by an indie developer with RA.

## Frequently asked questions about JointSignal

### What is JointSignal?

JointSignal is a health tracking application designed for individuals with rheumatoid arthritis. It allows users to log daily symptoms, medication adherence, and other relevant health data to create comprehensive reports for their rheumatologist. The app prioritizes user privacy by storing all data locally on the device.

### Does JointSignal have ads?

No, JointSignal does not contain advertisements. The app is designed to provide a focused and private experience for users tracking their health conditions. Its monetization relies on optional subscription plans for advanced features.

### What kind of reports can I generate with JointSignal?

JointSignal can generate detailed, multi-page reports that include coverage trends, joint counts, medication adherence, blood results with reference ranges, flare days, and user notes. These reports are designed to be easily exportable as PDFs for sharing with a rheumatologist.

### How does JointSignal handle my health data privacy?

JointSignal is built with a strong emphasis on privacy. It requires no account, has no servers, and contains no analytics or third-party tracking code. Your health record resides solely on your phone, with optional backups to your personal iCloud Drive. The developer never receives your health information.

### What are the subscription options for JointSignal?

JointSignal offers two subscription plans: JointSignal Monthly at $3.99 per month and JointSignal Annual at $39.99 per year. Both plans include a 14-day free trial, allowing users to explore the premium features before committing to a purchase.

### Can JointSignal calculate DAS28?

Yes, JointSignal can calculate DAS28 based on the joint counts you enter. It is important to note that any DAS28 calculation displayed within the app is labeled as 'self-reported' to emphasize that it is derived from user input and not a clinical diagnosis.

### How often is JointSignal updated?

JointSignal was last updated on September 26, 2026, with version 1.3. While specific update frequency is not detailed, the release history indicates ongoing development and support for the application.

### What devices is JointSignal compatible with?

JointSignal is currently supported on iPhones. The app is designed for iOS devices, ensuring a seamless experience for iPhone users managing their rheumatoid arthritis.

## Version history (last 5 releases)

### 1.3 — 2026-09-26

• Medicines taken on several days a week: multiple days of the week can now be selected.

• Dosing notes: write down how to take a medicine, like a dose that builds up over several weeks. They appear on Today, in Treatment and on your report.

• Past appointments now open a record of the questions you asked, the side effects you had, the medicines you were on and your blood results at the time. You can add answers to questions afterwards.

• Doses and blood results print on your report exactly as you entered them.

### 1.2 — 2026-09-20

Nothing in the app itself has changed. This update replaces the App Store screenshots with ones that explain what JointSignal actually does before you download it.

### 1.1 — 2026-09-19

• Weather, if you want it. Switch it on in Settings and each day's temperature, humidity and air pressure appear on Today and under your pain score on Trends. It is off by default, uses only your approximate location, and never stores it. The app shows you the weather beside your symptoms and leaves the conclusions to you.

• Export your data. Report → Export data gives you everything you have recorded as CSV files or one JSON file, for a spreadsheet or an AI assistant. Unanswered questions stay blank, never zero.

• Tidier icons throughout, and today's weather icon matches the sky.

### 1.0.3 — 2026-09-18

Recording is now free for your first 7 days — no subscription and nothing to sign up for. If you downloaded JointSignal earlier and found Today locked, your 7 days start when you open this update.

### 1.0.2 — 2026-09-18

Nothing in the app itself has changed. This update improves how JointSignal is described on the App Store, so that people looking for a rheumatoid arthritis tracker can find it.

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## More apps by SCOTT NATHAN HAINES

- [HuntFix: Mark & Recover](https://appshunter.io/ios/app/huntfix-mark-and-recover/id6809111675)
- [HuntFix Journal](https://appshunter.io/ios/app/huntfix-journal/id6816298050)

All apps by SCOTT NATHAN HAINES: https://appshunter.io/developer/6806740875

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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 2026-10-05.*