Comparison

PRN Graph vs Dosiscalculator

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

Head to head
About

PRN Graph

Features
Read full description

The Perined-Hoftiezer birth weight curves show the optimal birth weight (and its distribution) of children born at the corresponding gestational age. The curves are differentiated by gender. Identifying small children is important for reducing mortality and morbidity. These curves are based on data from the perinatal registration of newborns in the Netherlands. The curves are normative and therefore developed based on a low-risk population without known risk factors for fetal growth restriction. All multiple pregnancies, inductions, and primary cesarean sections were also excluded to approximate the optimal birth weight for each gestational age. More information can be found at www.perined.nl and in the following scientific publications: Hoftiezer L et al. Am J Obstet Gynecol. (2019) From population reference to national standard: new and improved birthweight charts. 10.1016/j.ajog.2018.12.023 Hoftiezer L et al. Eur J Pediatr. (2016) Defining small-for-gestational-age: prescriptive versus descriptive birthweight standards. 10.1007/s00431-016-2740-8 The curves were compiled by Liset Hoftiezer, guided by a working group consisting of representatives from various professional groups, birth care organizations, and researchers: Joyce Dijs-Elsinga, Jeroen van Dillen, Michel Hof, Marije Hogeveen, Chantal Hukkelhoven, Karline van de Kamp, Richard van Lingen, Alieke de Roon-Immerzeel, Rosalinde Snijders, Viki Verfaille, Ger de Winter, and Koos Zwinderman. The research position was financially supported by the Isala Innovation & Science Fund and Nutricia Early Life Nutrition; there has been no interference with the content of the project. ยฉ 2024 Perined

About

Dosiscalculator

Features
Read full description

Met deze dosiscalculator kan eenvoudig de juiste dosering per gift worden berekend van een bepaald medicament. Voer de dosering per kg per dag in en de doseerfrequentie; de app berekent vervolgens de dosering per gift. Indien de concentratie wordt ingevuld, wordt ook het aantal ml berekend.

Screenshots

PRN Graph4 screens
Dosiscalculator3 screens

Verdict

The call

The clearest difference is price: PRN Graph at Free against Dosiscalculator's $1.99. Dosiscalculator's advantage is iOS requirement (11.0 vs 16.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

PRN Graph is free to download; Dosiscalculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PRN Graph ships an update every 3 months, Dosiscalculator every 2 months. The most recent releases landed on September 8, 2026 and October 12, 2026 respectively.

Scorecard2 real differences ยท 4 level
PRN Graph versus Dosiscalculator: the parameters behind the verdict, then further details
ParameterPRN GraphDosiscalculator
PriceFree โ€” better$1.99
Update frequencyEvery 3 monthsEvery 2 months โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS16.011.0 โ€” better
Further details โ€” not scored
Size6 MB5 MB
Age rating17+12+
DeveloperGlamorous Goat B.V.Rimon

In-app purchases

None

PRN Graph

No in-app purchases

None

Dosiscalculator

No in-app purchases

Questions

Is PRN Graph free?
PRN Graph is free to download, with no in-app purchases.
Is Dosiscalculator free?
Dosiscalculator costs $1.99, with no in-app purchases.
Do PRN Graph or Dosiscalculator have ads?
Neither PRN Graph nor Dosiscalculator shows ads.
Which is updated more often, PRN Graph or Dosiscalculator?
PRN Graph ships an update every 3 months, and Dosiscalculator every 2 months. Most recently, PRN Graph was updated on September 8, 2026 and Dosiscalculator on October 12, 2026.

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