Comparison

FeverApp vs What Week

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

Head to head
About

FeverApp

Features
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FeverApp is your diary to document acute infectious diseases, medication intake, symptoms, vaccines, and more for you and your family. The multimedia library helps to understand illness as a process and fever as a resource of your immune system. It is based on current guidelines regarding fever and febrile diseases. Use the medication scanner to add medicines to your list and track the intake quantity, date and time. FeverApp features: - Create separate profiles for each family member - Document and overview febrile episodes and diseases over time - Document febrile seizures - Document symptoms, measures and medications - Super easy new medication scanning feature - A graph view of well-being and other details - Set reminders for temperature measurements - Receive helpful tips from “Dr. Fee” - Brief informative videos - Read about recent scientific articles and guidelines about fever - Find medication alternatives in Info library Important notes: - To use FeverApp you need a family code, which you can receive from the cooperating medical practices. Please contact us via www.feverapp.de . - FeverApp does not measure temperature. To measure temperature a separate thermometer is necessary. - Your input in the Feverapp helps Prof. David Martin and his team from the University Witten/Herdecke gain a deeper understanding of fever. The project is finantially supported by a grant from the the German Ministry of Education and Research Available languages: German, English and Russian

About

What Week

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What week are you in? Just add it to your home or lock screen. Or was your child already born? Set the date of birth and keep track on how old your child is.

Screenshots

FeverApp4 screens
What Week4 screens

Verdict

The call

The clearest difference is iOS requirement: FeverApp at 11.0 against What Week's 17.0. On price, update cadence, ads and in-app purchases 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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 9, 2026 and September 20, 2026 respectively.

Scorecard1 real difference · 5 level
FeverApp versus What Week: the parameters behind the verdict, then further details
ParameterFeverAppWhat Week
PriceFreeFree
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPod — betteriPhone
Requires iOS11.0 — better17.0
Further details — not scored
Size49 MB1 MB
Age rating12+17+
DeveloperDavid MartinJan Oskar Brinker

In-app purchases

None

FeverApp

No in-app purchases

None

What Week

No in-app purchases

Questions

Is FeverApp free?
FeverApp is free to download, with no in-app purchases.
Is What Week free?
What Week is free to download, with no in-app purchases.
Do FeverApp or What Week have ads?
Neither FeverApp nor What Week shows ads.
Which is updated more often, FeverApp or What Week?
FeverApp ships an update every 3 months, and What Week every 3 months. Most recently, FeverApp was updated on September 9, 2026 and What Week on September 20, 2026.

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