# MRTLE2 Study vs Epi

The clearest difference is update cadence: Epi at every 4 days against MRTLE2 Study's every 5 weeks. Epi also leads on device support (4 vs 2) and iOS requirement (11.0 vs 13.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MRTLE2 Study ships an update every 5 weeks, Epi every 4 days. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | MRTLE2 Study | Epi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (5 ratings)](https://appshunter.io/ios/app/epi-help/id1566594294/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | — | Free |
| Size | 9 MB | 68 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 17+ | 17+ |
| Developer | [Irody Inc.](https://appshunter.io/developer/362460645) | [DS Logistics Group INC](https://appshunter.io/developer/1566594296) |

## What reviewers say

### MRTLE2 Study

[App page](https://appshunter.io/ios/app/mrtle2-study/id1451800482)

**Features:** macOS Compatibility

**In-app purchases:** none


### Epi

[App page](https://appshunter.io/ios/app/epi-help/id1566594294)

This app uses Apple Watch data to detect and record seizures, providing early warnings and notifying loved ones. It analyzes various health metrics like heart rate, sleep, alcohol consumption, and altitude changes to help users understand and manage their condition.

**Highlights:** Seizure detection and recording, Emergency contact notifications, Apple Watch sensor data analysis, Early seizure attack warnings, Heart rate monitoring, Sleep and alcohol consumption tracking, Altitude change analysis, Personal seizure diary

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MRTLE2 Study free?

MRTLE2 Study is free to download, with no in-app purchases.

### Is Epi free?

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

### Do MRTLE2 Study or Epi have ads?

Neither MRTLE2 Study nor Epi shows ads.

### Which is updated more often, MRTLE2 Study or Epi?

MRTLE2 Study ships an update every 5 weeks, and Epi every 4 days. Most recently, MRTLE2 Study was updated on November 2, 2026 and Epi on November 3, 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.*