Comparison

DifferentiationCalculator vs Dental Age

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

Head to head
About

DifferentiationCalculator

Features
Read full description

This app calculates the analytic formula of the first derivative of a given function. Derivative represents a rate of change of a function with respect to an independent variable. This app enables to differentiate a function that depends on more than one independent variable (called here a multi-parametric case) by considering these variables separatelly. To do so, one must declare a name of independent variable with respect to which a given function is differentiated. During differentiation, the rest of variables is kept constant. The derivative found on the basis of the obtained analytical formula can be compared with the derivative found numerically. The obtained results can then be depicted in plots. In order to plot a multi-parametric case, all remaining independent variables must be set by the user. To make this app more didactic, it is possible to track and practise intermediate stages of searching for the analytic derivative. All these steps can be performed by the user himself. In this way, the final formula of the derivative sought will become more understandable.

About

Dental Age

This application estimates a child's dental age using Demirjian's system, analyzing the developmental stages of seven mandibular teeth from panoramic radiographs. It is designed for dental professionals and students to aid in clinical assessments.

Highlights
  • Demirjian's system for dental age estimation
  • Analyzes seven mandibular teeth
  • Supports ages 3-16
  • Requires panoramic radiograph
  • For professional and educational use
Features
Read full description

This app utilizes Demirjian's system for dental age estimation. The system can be used to estimate the dental age of children between 3 and 16 years old. Panoramic radiograph is necessary to identify the developmental stages of the seven mandibular teeth on the left side (excluding third molars). In case of tooth agenesis or tooth loss in the left side of the mandible, the contralateral tooth in the right side should be considered. Dental Age has been developed by dentists specifically for professional and educational use (dental students). Always correlate the result with the patient’s clinical data. If you are a patient, always check with a doctor before making medical decisions.

Screenshots

DifferentiationCalculator4 screens
Dental Age4 screens

Verdict

The call

The clearest difference is price: DifferentiationCalculator at Free against Dental Age's $2.99. DifferentiationCalculator also leads on iOS requirement (12.0 vs 16.0). Dental Age's advantage is update cadence (monthly vs every 4 months). On ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

DifferentiationCalculator is free to download; Dental Age costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DifferentiationCalculator ships an update every 4 months, Dental Age monthly. Both last shipped on November 7, 2026.

Scorecard3 real differences Β· 5 level
DifferentiationCalculator versus Dental Age: the parameters behind the verdict, then further details
ParameterDifferentiationCalculatorDental Age
PriceFree β€” better$2.99
Positive reviewsβ€”100.0% of reviews
Update frequencyEvery 4 monthsMonthly β€” better
AdsNoNo
In-app purchasesNoNo
Monetizationβ€”Paid
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS12.0 β€” better16.0
Further details β€” not scored
Size14 MB15 MB
Age rating4+17+
DeveloperIlona KosinskaCRESCENDO TREINAMENTOS AVANCADOS LTDA

In-app purchases

None

DifferentiationCalculator

No in-app purchases

None

Dental Age

No in-app purchases

Questions

Is DifferentiationCalculator free?
DifferentiationCalculator is free to download, with no in-app purchases.
Is Dental Age free?
Dental Age costs $2.99, with no in-app purchases.
Do DifferentiationCalculator or Dental Age have ads?
Neither DifferentiationCalculator nor Dental Age shows ads.
Which is updated more often, DifferentiationCalculator or Dental Age?
DifferentiationCalculator ships an update every 4 months, and Dental Age monthly. Most recently, DifferentiationCalculator was updated on November 7, 2026 and Dental Age on November 7, 2026.

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