# Guideline 1.4.1 - Safety: Medical App Accuracy Claims

**Guideline:** 1.4.1 · **Store:** Apple App Store · **Severity:** high · **Fix difficulty:** medium · **Typical turnaround:** 1-3 days

Canonical URL: https://appstorereject.com/rejections/apple/1/guideline-141-safety-medical-app-accuracy-claims

## Description

Apple is rejecting your app because it makes health measurement claims that can't be validated, or it could provide inaccurate medical data. Apps claiming to measure blood pressure, blood glucose, blood oxygen levels, body temperature, or take X-rays using only the phone's sensors are explicitly not permitted. This rejection applies broadly to any health, fitness, or medical app that makes accuracy claims without disclosing methodology, or that could mislead users into making medical decisions based on inaccurate data. Even legitimate health apps need to include 'consult your doctor' disclaimers. If your medical app has received regulatory clearance (FDA 510(k), CE marking, etc.), you can submit documentation to support its claims. But for apps using only the phone's built-in sensors to make medical measurements, there's no path to approval.

## Common variations

- App claims to measure blood pressure using only device sensors
- App claims to measure blood glucose or blood oxygen with phone camera
- Health measurement methodology cannot be validated
- Medical app does not disclose data and methodology to support accuracy claims
- App could provide inaccurate data used for medical decisions

## Example rejection email

```
Guideline 1.4.1 - Safety - Physical Harm

Your app claims to provide health measurements that cannot be validated using the device's built-in sensors alone. Specifically, your app claims to [measure blood pressure / measure blood glucose / take X-rays / measure blood oxygen levels] using only the device sensors.

Apps that claim to take x-rays, measure blood pressure, body temperature, blood glucose levels, or blood oxygen levels using only the sensors on the device are not permitted.

Next Steps:
Please revise your app to remove unvalidated health measurement claims, or submit documentation of regulatory clearance if applicable.
```

## Resolution steps

## Quick Assessment
- **Risk level:** High
- **Resolution path:** Fix & Resubmit (or provide regulatory docs)
- **Typical turnaround:** 1-3 days

## The Fix

01. **Remove impossible measurement claims** — If your app claims to measure BP, blood glucose, or blood oxygen using only the phone camera/sensors without approved hardware, remove these features entirely. There is no workaround.

02. **Add methodology disclosure** — For legitimate health measurements (heart rate via camera, step counting via accelerometer), clearly disclose the methodology and accuracy limitations.

03. **Add medical disclaimers** — Include prominent disclaimers: 'This app is not a medical device,' 'Consult your healthcare provider before making medical decisions,' 'Results are estimates and should not replace professional medical advice.'

04. **Submit regulatory clearance** — If your app uses approved external hardware (Bluetooth blood pressure cuff, glucose monitor, pulse oximeter), submit the regulatory clearance documentation in the Review Notes.

05. **Separate wellness from medical claims** — Frame features as wellness tracking ('track your fitness trends') rather than medical measurement ('measure your blood pressure').

## Prevention
- Never claim medical measurement accuracy without regulatory clearance
- Always include 'consult your doctor' disclaimers in health apps
- Clearly distinguish between wellness tracking and medical diagnostics

## Appeal guidance

Only appeal if you have regulatory clearance (FDA 510(k), CE marking) or are using approved external hardware for measurements. Submit documentation with the appeal.

## Before / after examples

**Before:** App claims to 'Accurately measure your blood pressure using just your phone camera — no equipment needed!'
**After:** Blood pressure measurement feature removed. App now says 'Track your heart rate trends (estimated via camera). This is not a medical device — consult your doctor for accurate measurements.'
**Why it works:** Blood pressure measurement via phone camera alone is explicitly prohibited. Heart rate estimation is acceptable with proper disclaimers.

## Common questions

**Can you appeal a 1.4.1 rejection?**

Only appeal if you have regulatory clearance (FDA 510(k), CE marking) or are using approved external hardware for measurements. Submit documentation with the appeal.

**How long does this typically take to fix?**

Typical turnaround is 1-3 days (difficulty: medium). After resubmission, most re-reviews complete within 24-48 hours.

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*Machine-readable source: https://api.appstorereject.com/api/rejections/detail?slug=guideline-141-safety-medical-app-accuracy-claims*