Comparison

Prevent vs Suji

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Prevent

This app pairs with a special mouthguard to monitor head impacts in real-time. It provides detailed data on acceleration, direction, and load for each impact, helping teams and parents assess player safety and identify athletes needing evaluation.

Highlights
  • Real-time head impact data
  • Linear and rotational acceleration tracking
  • Impact direction and location analysis
  • Impact Load measurement
  • Player and team data views
  • Live alerts for high-magnitude impacts
Features
Read full description

The Prevent mobile app pairs with the Prevent Biometrics impact monitor mouthguard. The Prevent system provides near real-time, accurate head impact data to help teams make the right call about player safety. The Prevent app is designed for sideline monitoring of head impacts for the whole team, and is typically used by athletic trainers, coaches and athlete parents. For every head impact, see five key impact characteristics: * Linear acceleration of the head * Rotational acceleration of the head * Direction of the impact * Location on the head of the impact * Impact Load (a composite measure factoring impact count and magnitude) View head impact data on a player or team basis, and over the timeframe of a day, week or sports season. Introduce actionable, objective data into the process of identifying athletes needing sideline evaluation. The Prevent app provides live alerts of high magnitude head impacts. See athletes with high head impact exposure and instruct them on safer playing technique. Stand for smart play. The Prevent system helps you understand head impacts across the team and organization and be a leader in improving sports safety, performance and growing the game. This app requires at least one Prevent Impact Monitor Mouthguard to operate. Learn more at preventbiometrics.com or contact sales@preventbiometrics.com.

About

Suji

This app utilizes targeted compression technology to alleviate joint pain and enhance isolated muscle strength. It aids in accelerating muscle recovery, requiring a compatible device. It is not intended for professional sports medicine training.

Highlights
  • Targeted compression technology
  • Joint pain relief
  • Increase isolated muscle strength
  • Accelerate muscle recovery
  • Requires compatible device
Features
Read full description

Build Muscle With Less Joint Strain. Recover Faster. Suji uses smart, targeted compression to help you strengthen your muscles with lighter loads and accelerate muscle recovery. Access expert-guided workouts or create your own sessions, with personalized compression that automatically calibrates to your body. Build muscle and recover anywhere, anytime. Suji Gen1 or Suji Gen2 device required. NOTE: This app is designed for individual use. Sports medicine professionals, physical therapists and athletic programs should download the Suji Teams app.

Screenshots

Prevent4 screens
Suji4 screens

Verdict

The call

The clearest difference is review sentiment: Prevent at 100% against Suji's 50%. Prevent also leads on rating (5.0 vs 3.4) and in-app purchases (none vs 1). On price, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Suji sells 1 in-app purchase, starting at $4.99 per month. Prevent asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Prevent holds the better App Store score, 5.0 against 3.4. Both are backed by a comparable volume of ratings — 9 and 13 respectively. Written reviews point the same way: 100% of Prevent's written reviews are positive against 50% of Suji's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

Scorecard4 real differences · 6 level
Prevent versus Suji: the parameters behind the verdict, then further details
ParameterPreventSuji
PriceFreeFree
Rating5.0 (9 ratings) — better3.4 (13 ratings)
Positive reviews100.0% of reviews — better50.0% of reviews
Number of ratings913 — better
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad — betteriPhone
Requires iOS16.4 — better17.0
Further details — not scored
Size46 MB452 MB
Age rating4+12+
DeveloperPrevent Biometrics, IncSujiBFR

Customer experience

Prevent

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Suji

All ratings13 ratings
Positive61.5%
Neutral0.0%
Negative38.5%
Written reviews12 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Prevent

No in-app purchases

1 purchases

Suji

Subscriptions1
  • Suji Athlete Subscription1 Month trial$4.991 Month

Questions

Is Prevent free?
Prevent is free to download, with no in-app purchases.
Is Suji free?
Suji is free to download, with in-app purchases available.
Which has better reviews, Prevent or Suji?
Prevent is rated higher. Prevent averages 5.0 out of 5 from 9 ratings, while Suji averages 3.4 from 13 ratings.
Do Prevent or Suji have ads?
Neither Prevent nor Suji shows ads.
Which is updated more often, Prevent or Suji?
Prevent ships an update monthly, and Suji monthly. Most recently, Prevent was updated on October 2, 2026 and Suji on September 30, 2026.

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