Comparison

COVapp vs MASTHAVE

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

Head to head
About

COVapp

Participate in scientific research by logging daily symptoms and accessing information about viruses. The app prioritizes user privacy by not collecting personal data beyond manually entered symptoms after consent is given.

Highlights
  • Daily symptom diary
  • Virus information and FAQs
  • Scientific research participation
  • User consent for data collection
  • Privacy-focused data handling
Read full description

COVapp gives you the opportunity to participate in scientific research. When you have created an account (emailaddres and phonenumber for 2-step verification login), you can login and use the app. The app doesn't collect any personal information. You can fill in a daily diary (list of symptoms) and see information about the virus and see FAQ about it. When you start, you have to give your consent, else you can't fill in the daily diary and the app doesn't collect this data. The app does not collect any other data from your device, other then the you manually enter (symtpoms).

About

MASTHAVE

Features
Read full description

MASTHAVE® is an app developed by renowned doctors that supports patients with mastocytosis in dealing with their disease. Mastocytosis is a rare disease in which mast cells accumulate in various body tissues. It affects around one in 10,000 people and severely limits the quality of life. Despite initial successes in the development of effective drug therapies, complete control of all symptoms is crucial for the well-being and lifestyle of affected patients. Take control of your mastocytosis: In just a few minutes a day, you can record your symptoms and their impact on your quality of life. Work with your treating doctors to track your disease progression, how you respond to your therapy and how it can be optimized for you. To do this, it is important that you record your data continuously over a longer period of time with MASTHAVE®. The data you collect can also help researchers to better understand mastocytosis. Your results will thus contribute to the development of new treatment options. From now on you are no longer alone - MASTHAVE® supports you at all times! Are you a doctor? You can find more information at www.masthave-app.com

Screenshots

COVapp4 screens
MASTHAVE4 screens

Verdict

The call

The clearest difference is update cadence: COVapp at every 3 weeks against MASTHAVE's every 6 weeks. COVapp also leads on iOS requirement (9.0 vs 13.0). 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

COVapp ships an update every 3 weeks, MASTHAVE every 6 weeks. The most recent releases landed on October 16, 2026 and September 30, 2026 respectively.

Scorecard2 real differences · 8 level
COVapp versus MASTHAVE: the parameters behind the verdict, then further details
ParameterCOVappMASTHAVE
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews6.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS9.0 — better13.0
Further details — not scored
Size119 MB33 MB
Age rating4+17+
DeveloperYour Research B.V.Moxie GmbH

In-app purchases

None

COVapp

No in-app purchases

None

MASTHAVE

No in-app purchases

Questions

Is COVapp free?
COVapp is free to download, with no in-app purchases.
Is MASTHAVE free?
MASTHAVE is free to download, with no in-app purchases.
Do COVapp or MASTHAVE have ads?
Neither COVapp nor MASTHAVE shows ads.
Which is updated more often, COVapp or MASTHAVE?
COVapp ships an update every 3 weeks, and MASTHAVE every 6 weeks. Most recently, COVapp was updated on October 16, 2026 and MASTHAVE on September 30, 2026.

Other comparisons