# Seizure Tracker vs MEMS Sync

The clearest difference is update cadence: Seizure Tracker at every 2 months against MEMS Sync's every 10 months. MEMS Sync's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Seizure Tracker ships an update every 2 months, MEMS Sync every 10 months. The most recent releases landed on October 15, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Seizure Tracker | MEMS Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (644 ratings)](https://appshunter.io/ios/app/seizure-tracker/id410716391/reviews)** | — |
| Number of ratings | **644** | — |
| Positive reviews | 83.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | Free | — |
| Size | 30 MB | 29 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Seizure Tracker LLC](https://appshunter.io/developer/410716395) | [AARDEX Group SA](https://appshunter.io/developer/1587160961) |

## What reviewers say

### Seizure Tracker

[App page](https://appshunter.io/ios/app/seizure-tracker/id410716391)

Easily log and track seizures with detailed event logs. Record seizures with video and audio, add notes on triggers and aftermath, and synchronize data with an online platform for comprehensive epilepsy management.

**Highlights:** Time and visually record seizures, Videotape seizures and upload to SeizureTracker.com, Record VNS Usages and Rescue Medication, Add additional seizure details, Create manual seizure entries, Store information in Seizure Library, Record event location

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 📊 Helpful for doctors
- 🎥 Ability to record videos
- 🗓️ Tracks seizure patterns
- 💻 Web-based app is useful

**What reviewers complain about**

- 🐛 Crashes/freezes
- 🔁 Sync issues
- 🔍 Limited seizure type options
- 🔍 Difficulty editing entries
- 🔍 Camera facing wrong way

**Reported bugs**

- Seizures double/triple logged
- Can't edit seizure entries
- Videos not saving properly
- VNS date range issues
- Graphs not working

**Requested features**

- Integrate with Apple Health
- Automatic video saving
- Customizable event types
- Barometric pressure tracking
- Notification when new seizure entered


### MEMS Sync

[App page](https://appshunter.io/ios/app/mems-sync/id6446892355)

**In-app purchases:** none


## Frequently asked questions

### Is Seizure Tracker free?

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

### Is MEMS Sync free?

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

### Do Seizure Tracker or MEMS Sync have ads?

Neither Seizure Tracker nor MEMS Sync shows ads.

### Which is updated more often, Seizure Tracker or MEMS Sync?

Seizure Tracker ships an update every 2 months, and MEMS Sync every 10 months. Most recently, Seizure Tracker was updated on October 15, 2026 and MEMS Sync on September 26, 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.*