Comparison

FlexPro Grip vs PISON

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

Head to head
About

FlexPro Grip

This app works with a specialized device to create customized training programs for baseball pitchers. It measures baseline strength and endurance to improve pitching performance, reduce injury risk, and accelerate recovery. Track your progress with saved workout history.

Highlights
  • Customized training protocols
  • Strength, endurance, and RPD testing
  • Objective data measurements
  • Injury risk reduction
  • Performance enhancement
  • Workout history tracking
Features
Read full description

OVERVIEW: The FlexPro Grip app is to be used along with the FlexPro Grip device. Designed primarily for baseball pitchers, the FlexPro Grip app provides customized training protocols to be performed on the FlexPro Grip device to improve the strength, endurance and explosiveness of the muscles and tendons from your fingertips through your elbow that most impact pitching performance. There is no guesswork. All data measurements are objective. The result: reduce the chance of tearing your UCL improve your spin rate increase your pitch movement throw harder enhance your command last longer in games recover faster after you throw accelerate your rehab if you are recovering from a UCL injury / forearm strain HOW APP WORKS: The app first guides you through a Strength, Endurance, and / or Rate of Force Development test to measure your baseline levels. Then, the app prescribes you with customized training protocols that specify the amount of force to apply, hold times, and the number of sets, reps, exercises to perform to help you make rapid gains in both your health and pitching performance. All workouts are saved to your History so you can track your progress at any time. NO MEDICAL ADVICE: The protocols are intended to provide recommendations but do not constitute medical advice. As with any form of sports or physical training, seek professional medical advice prior to initiating use.

About

PISON

This app provides insights into your cognitive and physical performance using data from compatible smartwatches. It helps you understand readiness, mental agility, and focus, with advanced metrics for sleep, stress, and health available through membership tiers.

Highlights
  • Cognitive performance metrics (Readiness, Agility, Focus)
  • Sleep and fatigue tracking
  • Stress and health monitoring
  • Fitness metrics (respiratory rate, calories)
  • Community leaderboards and groups
  • Insights from neural sensor technology
Features
Read full description

Unlock Your Mind. Unleash Your Potential. Pison helps you reach new heights of human performance and health. The Pison app enables you to improve your whole self. It works in tandem with smartwatches or fitness trackers that are powered by Pison sensors to give you unprecedented insights into your mind, body, fatigue, health, and safety. Note - a Pison-powered wearable and a Pison membership are required. Innovative Sensor Technology Your unique performance and health insights are possible because of Pison’s innovative sensor technology. Unlike other wearables, all Pison-powered wearables include Pison’s novel neural sensor which decodes signals from your mind and nervous system, discreetly collected at the wrist, and gives key insights about your mental state that were never before possible. Some Pison-powered wearables also include other sensors that monitor vital signals such as your heart rate, heart rate variability, breathing frequency, pulse rate, and stress. When this information is blended with the insights from Pison’s neural sensor, you get richer information about your sleep, fatigue, fitness and health. Measure. Understand. Excel. The Pison app enables anyone with a Pison membership, including Pison READY and Pison PERFORM memberships, to monitor three critical cognitive performance metrics: - Readiness - A real-time indication of your ability to mentally perform. It can reveal impairment from fatigue, head injury, diet and disease. - Mental Agility - How quickly you process information, make decisions, and react. In competitive sports or high-stress professional scenarios, Mental Agility is crucial to success. - Focus - A reliable indicator of your ability to maintain attention. This is the gold standard measurement for fatigue testing. If you have a Pison PERFORM membership, you can also monitor additional metrics, including: - Sleep/Fatigue - Sleep time, sleep stages (REM, light, deep, and awake), sleep quality, sleep debt, circadian rhythm - Stress - Emotional reactions - Health - Heart rate, resting heart rate (RHR), heart rate variability (HRV), skin temperature - Fitness - Respiratory rate, calories burned - Safety - Sustained attention (PVT-B) In addition, all Pison memberships allow you to engage with the Pison community through leaderboards and personal groups where you can share and benchmark your performance scores with elite performers, friends, family, and peers. Revolutionary insights drive success Pison helps you measure and track your cognitive performance and physical performance metrics so you can improve your performance. Pison can help you improve cognitive and physical performance: - Optimize training programs. - Adjust diet, sleep schedules or other lifestyle factors. - Understand your circadian rhythm to optimize your preparation schedule. - Detect decreases in performance that may indicate impairment from head injury, fatigue or lifestyle choices, such as drugs or alcohol use. Get focused. Play smarter. Think clearer. Whatever your challenge, wherever your opportunity, Pison delivers unprecedented awareness of your mental and physical state. Realize your full potential—on the field, in the boardroom and beyond.

Screenshots

FlexPro Grip3 screens
PISON4 screens

Verdict

The call

The clearest difference is rating: PISON at 5.0 against FlexPro Grip's 4.1. FlexPro Grip's advantage is update cadence (weekly vs every 3 weeks) and ratings volume (26 vs 7). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

PISON holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 26 and 7 respectively.

UpkeepUpdate frequency

FlexPro Grip ships an update weekly, PISON every 3 weeks. The most recent releases landed on September 10, 2026 and September 23, 2026 respectively.

Scorecard3 real differences · 7 level
FlexPro Grip versus PISON: the parameters behind the verdict, then further details
ParameterFlexPro GripPISON
PriceFreeFree
Rating4.1 (26 ratings)5.0 (7 ratings) — better
Positive reviews66.7% of reviews—
Number of ratings26 — better7
Update frequencyWeekly — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size93 MB64 MB
Age rating4+4+
DeveloperFlexProGripPison Technology

Customer experience

FlexPro Grip

All ratings26 ratings
Positive76.9%
Neutral0.0%
Negative23.1%
Written reviews9 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

PISON

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

FlexPro Grip

No in-app purchases

None

PISON

No in-app purchases

Questions

Is FlexPro Grip free?
FlexPro Grip is free to download, with no in-app purchases.
Is PISON free?
PISON is free to download, with no in-app purchases.
Which has better reviews, FlexPro Grip or PISON?
PISON is rated higher. FlexPro Grip averages 4.1 out of 5 from 26 ratings, while PISON averages 5.0 from 7 ratings.
Do FlexPro Grip or PISON have ads?
Neither FlexPro Grip nor PISON shows ads.
Which is updated more often, FlexPro Grip or PISON?
FlexPro Grip ships an update weekly, and PISON every 3 weeks. Most recently, FlexPro Grip was updated on September 10, 2026 and PISON on September 23, 2026.

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