Comparison

ATA Calculator vs t

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

Head to head
About

ATA Calculator

This medical app provides thyroid nodule calculators to assist healthcare providers in guiding treatment decisions for thyroid disease and cancer. It offers recommendations based on current evidence and expert opinion, but emphasizes that it is a tool to supplement, not replace, physician judgment.

Highlights
  • Thyroid nodule calculators
  • Guidance for thyroid disease and cancer
  • Evidence-based recommendations
  • Supports clinical judgment
  • Developed by American Thyroid Association
Features
Read full description

The American Thyroid Association has developed thyroid nodule calculators to provide guidance and recommendations for particular practice areas concerning thyroid disease and thyroid cancer. The Calculators are not inclusive of all proper approaches or methods, or exclusive of others. The Calculators do not establish a standard of care and specific outcomes are not guaranteed. Treatment decisions must be made based on the independent judgment of health care providers and each patient’s individual circumstances. A calculator is not intended to take the place of physician judgment in diagnosing and treatment of particular patients. The ATA calculators are based on the evidence available in the literature and the expert opinion of ATA members in the recent timeframe of the development of calculators. Management issues have not been and cannot be comprehensively addressed in randomized trials; therefore, the evidence cannot be comprehensive. Calculators cannot always account for individual variation among patients. Calculators cannot be considered inclusive of all proper methods of care or exclusive of other treatments reasonably directed at obtaining the same results. Therefore, the American Thyroid Association considers adherence to these calculations to be voluntary, with the ultimate determination regarding its application to be made by the treating physician and health care professionals with the full consideration of the individual patient’s clinical history and physical status. In addition, the calculator concerns the therapeutic interventions used in clinical practice and do not pertain to clinical trials. Clinical trials are a separate matter, designed to research new and novel therapies, and the calculators are not necessarily relevant to their purpose.

About

t

Explore the features of an insulin pump's touchscreen interface without needing a prescription. This app is ideal for individuals with diabetes, their caregivers, or healthcare professionals to understand pump functionality.

Highlights
  • Explore touchscreen interface
  • Demonstrates pump features
  • No prescription required
  • Educational tool
  • Mobile device compatible
Features
Read full description

The t:simulator™ App is an easy way to explore the simple touchscreen interface of the t:slim X2™ Insulin Pump from Tandem Diabetes Care, no prescription or insurance verification required! Whether you’re a person living with diabetes, a relative or caregiver, or a healthcare provider, we make it simple to explore the t:slim X2 Pump’s features on your mobile device. THIS APPLICATION IS FOR DEMONSTRATION PURPOSES ONLY. IT SHOULD NOT BE USED FOR THERAPY DECISIONS. Due to the variety of sizes of compatible devices, the t:simulator App may not display the pump at actual size. Actual size is 2” x 3.13”. Please refer to the Technical Specifications in the Resources section of the app for more detailed information.

Screenshots

ATA Calculator1 screens
t3 screens

Verdict

The call

The clearest difference is price: t at Free against ATA Calculator's $2.99. t also leads on rating (3.6 vs 3.0) and ratings volume (116 vs 1). ATA Calculator's advantage is iOS requirement (11.0 vs 15.1). On 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

t is free to download; ATA Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

t holds the better App Store score, 3.6 against 3.0. That said, the two scores are not equally well evidenced: t has 116 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

ATA Calculator ships an update every 9 months, t every 2 months. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.

Scorecard6 real differences · 4 level
ATA Calculator versus t: the parameters behind the verdict, then further details
ParameterATA Calculatort
Price$2.99Free — better
Rating3.0 (1 ratings)3.6 (116 ratings) — better
Positive reviews—42.4% of reviews
Number of ratings1116 — better
Update frequencyEvery 9 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.1
Further details — not scored
Size2 MB31 MB
Age rating17+4+
DeveloperAmerican Thyroid AssociationTandem Diabetes Care, Inc.

Customer experience

ATA Calculator

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%

t

All ratings116 ratings
Positive62.1%
Neutral9.5%
Negative28.4%
Written reviews66 reviews
Positive42.4%
Neutral4.5%
Negative53.0%

Bugs and requests

ATA Calculator

Not enough reviews yet to summarise bugs or requests.

t

Reported bugs

13 issues
  • App won't open once downloaded
  • Simulator crashes on launch
  • App broken on iOS 12
  • Simulator app broken on iOS 12
  • Simulator crashes as soon as app is open
Show 8 more
  • Simulator not working
  • App crashes when opening on iPhone X
  • Simulator crashes on iOS 12
  • Simulator doesn't work
  • App bombs on launch
  • Lagging and not working properly
  • Doesn't update as often
  • US version installed on iPhone, needs German version

Requested features

14 requests
  • Actual app to control and manage the pump
  • App available in Canada/Europe
  • Display beep noises for alerts
  • Simulate real-world issues like occlusions
  • Ability to simulate changing the pump
Show 9 more
  • Bolus from the app
  • Option to change mmol/l to mg/dl
  • Bluetooth control of the pump
  • App to upload reports from the pump for iPad
  • Integrate with Apple Watch for alerts
  • Actual app that sends information to phone
  • Simulate confirmation screens and alarms
  • More realistic simulation of pump usage
  • Display insulin on board information

In-app purchases

None

ATA Calculator

No in-app purchases

None

t

No in-app purchases

Questions

Is ATA Calculator free?
ATA Calculator costs $2.99, with no in-app purchases.
Is t free?
t is free to download, with no in-app purchases.
Which has better reviews, ATA Calculator or t?
t is rated higher. ATA Calculator averages 3.0 out of 5 from 1 ratings, while t averages 3.6 from 116 ratings.
Do ATA Calculator or t have ads?
Neither ATA Calculator nor t shows ads.
Which is updated more often, ATA Calculator or t?
ATA Calculator ships an update every 9 months, and t every 2 months. Most recently, ATA Calculator was updated on October 3, 2026 and t on October 13, 2026.

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