Comparison

Light Detective vs T2FIT

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

Head to head
About

Light Detective

This app educates patients about blue light and UV radiation, demonstrating the benefits of blue-coated lenses with simulations and images. It also measures blue light and UV radiation from various sources to enhance patient understanding.

Highlights
  • Patient education on blue light and UV
  • Simulations and images of lens benefits
  • Blue light measurement from light sources
  • UV radiation measurement
  • Information for eye care professionals
Features
Read full description

Light Detective will assist you in explaining about Blue coated lens, Blue light and UV to patients. This application has helpful and informative contents that shows the benefits of Blue coated lens with simulation and images. Plus, this app enables you to measure Blue light from any light sources such as tablet(iPad) or Smartphone or Fluorescent light etc. and UV radiation with a Light Detective module to help patients to have better understanding about Blue light and UV radiation. This App is intended for use by Eye Care Professionals. - If you are a professional eye care practitioner, please contact us to learn more about Light Detective.

About

T2FIT

Features
Read full description

Download the T2FIT App today to plan and schedule your classes! From this mobile App you can view class schedules, sign-up for classes, as well as view the studio’s location information. Optimize your time and maximize the convenience of signing up for classes from your device! Download this App today!

Screenshots

Light Detective3 screens
T2FIT3 screens

Verdict

The call

The clearest difference is update cadence: T2FIT at monthly against Light Detective's every 8 months. Light Detective's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support 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.

UpkeepUpdate frequency

Light Detective ships an update every 8 months, T2FIT monthly. The most recent releases landed on November 2, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
Light Detective versus T2FIT: the parameters behind the verdict, then further details
ParameterLight DetectiveT2FIT
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 8 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size120 MB193 MB
Age rating4+4+
DeveloperSignet Armorlite, Inc.Transform 2 fit ltd

In-app purchases

None

Light Detective

No in-app purchases

None

T2FIT

No in-app purchases

Questions

Is Light Detective free?
Light Detective is free to download, with no in-app purchases.
Is T2FIT free?
T2FIT is free to download, with no in-app purchases.
Do Light Detective or T2FIT have ads?
Neither Light Detective nor T2FIT shows ads.
Which is updated more often, Light Detective or T2FIT?
Light Detective ships an update every 8 months, and T2FIT monthly. Most recently, Light Detective was updated on November 2, 2026 and T2FIT on October 29, 2026.

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