MDex vs PREACT Pillow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MDex
This app helps University of Michigan students navigate campus life. It provides real-time bus tracking, event discovery, and connects users with campus clubs and communities. Access campus resources and giveaways to enhance your student experience.
- Discover campus events
- Real-time bus tracking
- Connect with clubs
- Access campus resources
- Find giveaways
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MDex – The #1 Student Life App at U-M! Welcome to MDex, the #1 way to experience student life at the University of Michigan. Discover what’s happening across campus, track U-M and Ann Arbor buses in real time, and stay connected with the clubs, events, and communities that make Michigan incredible. From campus resources to giveaways — MDex puts everything you need for the true Michigan experience right at your fingertips. Join thousands of Wolverines already using MDex. Go Blue!
PREACT Pillow
This app enhances your driving by providing real-time haptic feedback to reduce motion sickness. When paired with a compatible seat cushion, it alerts you to upcoming motion events, making commutes more comfortable. Experience advanced comfort technology for a better journey.
- Reduces driving nausea
- Real-time haptic feedback
- Pairs with Haptic Lite seat cushion
- Alerts to incoming motion events
- Enhances commute comfort
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The PREACT Pillow targets the root cause of motion sickness, so you can stay comfortable and productive without side effects. This app is intended for use with the PREACT Pillow device sold separately. The app uses Bluetooth connection to send vibration cues to your PREACT Pillow device, alerting you of upcoming vehicle motion. This fixes the mismatch between expectation and reality, helping with motion sickness and productivity. Try out the technology today and reclaim your ride! Terms of Use: https://www.msync.ai/terms-of-use-app
Screenshots
Verdict
The clearest difference is in-app purchases: MDex at none against PREACT Pillow's 1. MDex also leads on ratings volume (147 vs 6) and iOS requirement (12.4 vs 18.0). PREACT Pillow's advantage is rating (5.0 vs 4.8). On price, review sentiment, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. PREACT Pillow sells 1 in-app purchase, starting at $5.99 per month. MDex asks for nothing beyond the download.
PREACT Pillow holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: MDex has 147 ratings behind it against 6, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.
| Parameter | MDex | PREACT Pillow |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (147 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 147 — better | 6 |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 83 MB | 80 MB |
| Age rating | 4+ | 4+ |
| Developer | Julius Stuhec | Motion Sync LLC |
Customer experience
MDex
PREACT Pillow
In-app purchases
MDex
No in-app purchases
PREACT Pillow
- PREACT Haptic Premium$5.991 Month
