Esperanto vs Dosis!
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Esperanto
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The modern Esperanto app for structured and motivating learning. Learn Esperanto step by step with clearly structured lessons, easy-to-understand grammar explanations, and interactive exercises. The app combines modern design with an intuitive learning system and is suitable for both beginners and advanced learners. Features: β’ Structured Esperanto lessons β’ Clearly explained grammar β’ Interactive quizzes and exercises β’ Example sentences for better understanding β’ Progress tracking with learning status β’ Easy-to-use dictionary and glossary β’ Modern and minimalist design β’ Sound effects and Dark Mode β’ Available offline The content is clearly organized and easy to understand. Through exercises and immediate repetition, you can learn new vocabulary and grammar rules particularly effectively. The integrated progress system helps you keep track of your learning progress at all times. Chapters can be marked as read or learned, and completed exercises are automatically saved. The app was specifically designed for focused learning β without cluttered menus or unnecessary distractions. The focus is on a calm, modern interface and an enjoyable learning experience. Whether you are just starting to learn Esperanto or want to deepen your existing knowledge, the app supports your daily learning with clear content and practical exercises. Learn Esperanto at your own pace β simple, modern, and motivating.
Dosis!
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Dosis! makes everyday ionising radiation tangible β 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) β 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 β natural hotspots (Guarapari, Ramsar), nuclear sites (Chernobyl, Fukushima, Mayak), space (ISS, Moon, Mars) and historical uses (shoe-fitting fluoroscope, radium dials and more) β with dose values, maps, photos and sources. β’ Learn: short, accessible articles β 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 β 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
Verdict
The clearest difference is price: Dosis! at Free against Esperanto's $0.99. Esperanto's advantage is update cadence (daily vs monthly). On ads, in-app purchases, device support and iOS requirement 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
Dosis! is free to download; Esperanto costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Esperanto ships an update daily, Dosis! monthly. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.
| Parameter | Esperanto | Dosis! |
|---|---|---|
| Price | $0.99 | Free β better |
| Update frequency | Daily β better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad β better | iPhone |
| Requires iOS | 17.6 | 16.0 β better |
| Further details β not scored | ||
| Size | 7 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Martin Hanske | Dirk Schulze RΓΆntgendiagnostik GmbH |
In-app purchases
Esperanto
No in-app purchases
Dosis!
No in-app purchases
Questions
Is Esperanto free?
Is Dosis! free?
Do Esperanto or Dosis! have ads?
Which is updated more often, Esperanto or Dosis!?
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