Comparison

Sensitometer vs Reflex

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

Head to head
About

Sensitometer

Discover your sensitivity levels with a science-based, two-step test. It analyzes your responses to questions and your eye's reaction to light using your device's camera. Find out if you are hypersensitive and learn more about managing it.

Highlights
  • Two-step sensitivity test
  • Questionnaire analysis
  • Eye-light reaction measurement
  • Degree of Sensitivity score
  • Hypersensitivity information
  • Share results with others
Features
Read full description

How sensitive are you? Want to find out? For the first time ever you can discover exactly how sensitive you are. Take the Sensitometer™ test. It’s easy, accurate and science-based. Nearly 40% of adults and children are overly sensitive. They experience headaches easily when exposed to sunlight, fluorescent lights, perfume, irritating odors, cold air, cigarette smoke, exhaust fumes, and small changes in hormone levels. If your body over reacts to changes in humidity, cold air, pollution or changes in your hormones, you may be hypersensitive. How does the Sensitometer™ test work? It’s a two-step process. First, we use clinical information you provide by answering ten easy questions about how you feel, which reveals your own unique Degree of Sensitivity. Next, we use the upgraded video camera in your iPhone or iPad Pro* to measure exactly how fast your eyes react to the light in your camera. We record the speed of your pupils’ reactions and mathematically analyze your unique response times. You will see your Degree of Sensitivity on your iPhone screen soon after taking the test. Hypersensitive people are not crazy. They are Hypersensitive to anything that changes inside or outside of their bodies. Are you hypersensitive? Take the Sensitometer™ test and share your unique Degree of Sensitivity with your family, friends and personal physician. Find out more about Hypersensitivity and what you may do to feel better at www.Sensitometer.com *Please note that the Sensitometer™ test is currently only compatible with the following devices: iPhone 6, iPhone 6+, iPhone 6S, iPhone 6S+, iPhone SE and the 9.7-inch iPad Pro.

About

Reflex

This tool measures and tracks pupillary activity using an iPhone camera for quick, 5-second tests. It helps medical professionals monitor patient progress and identify deviations for clinical decision support.

Highlights
  • Pupillary readings via iPhone camera
  • 5-second test duration
  • Patient progress tracking
  • Baseline feature for deviations
  • Clinical decision support tool
  • Rapid biomarker validation
Features
Read full description

Measure and track autonomic pupillary activity by simply holding the iPhone up to your patient's eye for a quick 5-second test. Track patient progress using the baseline feature and frequently follow-up to determine deviations with Reflex, an accessible pupillary tool for clinical decision support. Here's what you can expect from Reflex: -Fast and reliable pupillary readings at the touch of a screen. -Track important changes and fluctuations from pupil readings over time. -Validate your clinical efforts with the state-of-the-art in rapid biomarkers. Reflex is only for medical professional use. Seek a physician's advice if you're experiencing ocular or neurological issues. Pricing & Terms: Reflex offers the following subscription option for unlimited use per period: * 1 month: $39.99 (USD) * 1 year: $399.99 (USD) This price applies to United States residents. Prices may vary in other countries respecting your local currency exchange rate. Your subscription will be charged to your iTunes account. At the end of the term, unless auto-renewables subscriptions are disabled, your subscription will automatically renew in your iTunes account. You will be charged for the regular price of your subscription within 24 hours prior to the end of the current term. You can turn off automatic renewal in your iTunes account settings at any time, but you must do so at least 24 hours before the end of the current term. Refunds will not be provided for the unused portion of any term. Reflex is a registered Class I 510(K) Exempt medical device. Privacy policy: https://reflexapp.io/privacy-policy/ Terms and conditions: https://reflexapp.io/terms-conditions

Screenshots

Sensitometer4 screens
Reflex3 screens

Verdict

The call

The clearest difference is rating: Reflex at 3.5 against Sensitometer's 2.5. Reflex also leads on update cadence (every 2 weeks vs every 2 months) and ratings volume (23 vs 6). Sensitometer's advantage is in-app purchases (none vs 5) and review sentiment (25% vs 0%). On price 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. Reflex sells 5 in-app purchases, starting at $1.99 per month. Sensitometer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Reflex holds the better App Store score, 3.5 against 2.5. Both are backed by a comparable volume of ratings — 6 and 23 respectively. Written reviews complicate that: 25% of Sensitometer's written reviews are positive against 0% of Reflex's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Sensitometer ships an update every 2 months, Reflex every 2 weeks. The most recent releases landed on September 28, 2026 and October 14, 2026 respectively.

Scorecard8 real differences · 2 level
Sensitometer versus Reflex: the parameters behind the verdict, then further details
ParameterSensitometerReflex
PriceFreeFree
Rating2.5 (6 ratings)3.5 (23 ratings) — better
Positive reviews25.0% of reviews — better0.0% of reviews
Number of ratings623 — better
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS9.0 — better17.6
Further details — not scored
Size63 MB22 MB
Age rating17++17
DeveloperKagenAirBrightlamp, Inc.

Customer experience

Sensitometer

All ratings6 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

Reflex

All ratings23 ratings
Positive60.9%
Neutral4.3%
Negative34.8%
Written reviews4 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Sensitometer

No in-app purchases

5 purchases

Reflex

Subscriptions5
  • Critical Care Monthly$1.991 Month
  • Monthly Subscription1 Month trial$41.991 Month
  • Monthly Subscription$41.991 Month
Show 2 more
  • Yearly Subscription1 Month trial$419.991 Year
  • Yearly Subscription$419.991 Year

Questions

Is Sensitometer free?
Sensitometer is free to download, with no in-app purchases.
Is Reflex free?
Reflex is free to download, with in-app purchases available.
Which has better reviews, Sensitometer or Reflex?
Reflex is rated higher. Sensitometer averages 2.5 out of 5 from 6 ratings, while Reflex averages 3.5 from 23 ratings.
Do Sensitometer or Reflex have ads?
Neither Sensitometer nor Reflex shows ads.
Which is updated more often, Sensitometer or Reflex?
Sensitometer ships an update every 2 months, and Reflex every 2 weeks. Most recently, Sensitometer was updated on September 28, 2026 and Reflex on October 14, 2026.

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