# HemiPhysioData vs Sirveil

The clearest difference is in-app purchases: HemiPhysioData at none against Sirveil's 4. HemiPhysioData also leads on iOS requirement (13.2 vs 15.0). Sirveil's advantage is update cadence (every 4 days vs every 18 months). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Sirveil sells 4 in-app purchases, starting at $7.99 per month. HemiPhysioData asks for nothing beyond the download.

HemiPhysioData ships an update every 18 months, Sirveil every 4 days. The most recent releases landed on September 29, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | HemiPhysioData | Sirveil |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sirveil-data-removal/id6760142892/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 11 MB |
| Requires iOS | **13.2** | 15.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Moez ur Rehman](https://appshunter.io/developer/1502416676) | [Sirveil, Inc.](https://appshunter.io/developer/1882858452) |

## What reviewers say

### HemiPhysioData

[App page](https://appshunter.io/ios/app/hemiphysiodata/id1502983547)

This app collects raw and processed sensor data from your Apple Watch, including accelerometer and gyroscope readings. It allows you to select activities, preferences, and then exports the data as a CSV file to your iPhone for analysis. Ideal for tracking movement and Range of Motion (ROM) measurements.

**Highlights:** Collects raw and processed sensor data, User-friendly activity selection, Exports data as CSV files, Supports accelerometer and gyroscope, Configurable sampling rate, Haptic feedback for logging alerts

**In-app purchases:** none


### Sirveil

[App page](https://appshunter.io/ios/app/sirveil-data-removal/id6760142892)

This AI-powered assistant helps you find and remove your personal information exposed online. It scans various sources for data breaches and broker sites, then automates removal requests and government records requests.

**Highlights:** AI Privacy Assistant, Breach Detection, Data Broker Removal, Dark Web Monitoring, Digital Dossier, Automated Takedowns, FOIA Filing

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sirveil Monthly | $7.99 | per month |
| Sirveil Annual | $79.99 | per year |
| Sirveil Correspondence | $3.99 | one-time |
| FOIA Submission | $49.99 | one-time |


## Frequently asked questions

### Is HemiPhysioData free?

HemiPhysioData is free to download, with no in-app purchases.

### Is Sirveil free?

Sirveil is free to download, with in-app purchases available.

### Do HemiPhysioData or Sirveil have ads?

Neither HemiPhysioData nor Sirveil shows ads.

### Which is updated more often, HemiPhysioData or Sirveil?

HemiPhysioData ships an update every 18 months, and Sirveil every 4 days. Most recently, HemiPhysioData was updated on September 29, 2026 and Sirveil on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*