Comparison

The Blue Map vs Dosis!

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

Head to head
About

The Blue Map

Features
Read full description

USA or China is more powerful? Nuclear Warheads – who is the leader on Earth? There are more women or men in the world? Discover these mysteries with 'The Blue Map' app!! Your child asks you dozens of questions about our world? You travel to a new country and you want discover the most essential information about it? You want compare your country with another? Discover all countries of Earth with animated 'The Blue Map'! 'The Blue Map' contains: - all countries of Earth with visualization on the map, flags, coats of arms, capital cities, inhabitants - details of each country with information about dominant religion, size, density, GDP, currency, …, - comparison of 2 chosen countries, - map of countries by size - map of countries by population - map of countries by density - map of countries by dominant religion - map of countries by driving side - map of countries by GDP (PPP) - map of countries by GDP (PPP) per capita - map of countries by GDP (nominal) - map of countries by GDP (nominal) per capita - map of countries by currency - map of countries by continent - map of countries by Gini rate - map of countries by HDI Index (Human Development Index) - map of countries by Nuclear Weapons - map of countries by COβ‚‚ Emission - map of countries by Sex Ratio - map of countries by Natural Increase - map of countries by Life Expectancy - map of countries by Number of Cars - map of countries by Number of Doctors (Physicians) - map of countries by Number of Hospital Beds per 1'000'000 inhabitants 'The Blue Map' bases on the most recent information and materials disponible in the greatest world library - Wikipedia (wikipedia.com), UN statistics, World Bank and WHO statistics. This app proceeds and regroups data in order to present you the advanced analysis in a proper, synthetic and user-friendly visualized way.

About

Dosis!

Features
Read full description

Dosis! makes everyday ionising radiation tangible – factual, multilingual and clutter-free. β€’ Ambient dose: Shows the current dose rate of the nearest official monitoring station (Germany: BfS ODL-Info; Switzerland: NADAM/NAZ). Your location is used on-device only and never transmitted. β€’ Flight dose: Estimates the effective dose of a flight from origin, destination, cruise altitude and travel month (solar cycle) – with intuitive comparisons (panoramic X-ray, days of natural radiation, hours on Guarapari beach, minutes in the Gastein radon gallery). β€’ Food: Converts the radiation dose of 40+ foods into microsieverts and "banana equivalents" (potassium-40 and others). β€’ Radiation hotspots: Places with extraordinary radiation – natural hotspots (Guarapari, Ramsar), nuclear sites (Chernobyl, Fukushima, Mayak), space (ISS, Moon, Mars) and historical uses (shoe-fitting fluoroscope, radium dials and more) – with dose values, maps, photos and sources. β€’ Learn: short, accessible articles – What is background radiation? Doses in medicine (with a table from dental X-ray to CT), the story of the banana equivalent dose, why food is radioactive, mineral water and infants. β€’ Works worldwide: outside Germany and Switzerland the app shows a clearly labelled physical estimate (per UNSCEAR) instead of a measurement. β€’ Topographic maps with country borders and capitals – for your location, every flight route and every radiation hotspot. Note: Dosis! is for information and education. It is not an official dose assessment or alert level. Languages: German, English, French, Italian, Spanish, Chinese.

Screenshots

The Blue Map4 screens
Dosis!4 screens

Verdict

The call

The clearest difference is price: Dosis! at Free against The Blue Map's $3.99. Dosis! also leads on in-app purchases (none vs 1). The Blue Map's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On update cadence and ads 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

Dosis! is free to download; The Blue Map costs $3.99 up front. The Blue Map sells 1 one-off in-app purchase. Dosis! asks for nothing beyond the download.

UpkeepUpdate frequency

The Blue Map ships an update every 3 weeks, Dosis! monthly. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

Scorecard4 real differences Β· 2 level
The Blue Map versus Dosis!: the parameters behind the verdict, then further details
ParameterThe Blue MapDosis!
Price$3.99Free β€” better
Update frequencyEvery 3 weeks β€” betterMonthly
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS13.0 β€” better16.0
Further details β€” not scored
Size230 MB8 MB
Age rating4+4+
DeveloperMikolaj AdamowiczDirk Schulze RΓΆntgendiagnostik GmbH

In-app purchases

1 purchases

The Blue Map

One-time1
  • Premium Map$1.99
None

Dosis!

No in-app purchases

Questions

Is The Blue Map free?
The Blue Map costs $3.99, and also offers in-app purchases.
Is Dosis! free?
Dosis! is free to download, with no in-app purchases.
Do The Blue Map or Dosis! have ads?
Neither The Blue Map nor Dosis! shows ads.
Which is updated more often, The Blue Map or Dosis!?
The Blue Map ships an update every 3 weeks, and Dosis! monthly. Most recently, The Blue Map was updated on October 24, 2026 and Dosis! on October 16, 2026.

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