Comparison

Mango Languages vs IndoorCO2Map Data Collector

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

Head to head
About

Mango Languages

Learn to speak foreign languages with conversational lessons focused on real language, culture, and progress. Features native speaker recordings, pronunciation tools, and personalized reviews. Download lessons for offline access and enjoy a distraction-free learning experience.

Highlights
  • Conversational lessons
  • 70+ languages
  • Native speaker recordings
  • Pronunciation comparison tool
  • Personalized reviews
  • Offline lesson access
  • No ads
Read full description

Ready to have real conversations? Mango Languages prioritizes real language, real culture, and real progress. Our comprehensive learning platform offers conversational language lessons in 70+ languages, teaching vocabulary, pronunciation, grammar, and culture simultaneously. From preparing for vacation or working abroad, to personal development and academic growth, our language courses are designed to take you wherever you wish to go. HOW DOES MANGO WORK? Learn languages from native speakers with courses that feature thousands of real recordings. Enhance comprehension with interactive listening and reading activities and bolster your learning with personalized daily reviews. Refine speaking skills with phonetic spellings, natural and slow pronunciations, and our pronunciation comparison tool. Sync progress across all platforms and NO ADS, so you can learn anywhere, at any time, with no distractions. WHY CHOOSE MANGO? Practical, Authentic Content: The outcome of using Mango is the ability to speak and communicate in real conversations. Linguist-Approved Language Courses: Each course is designed by expert linguists to provide high-quality instruction that produces real results. Placement Tests: Not sure where to start? Use our placement tests in select languages to identify the best starting point. Individualized Review: Our intelligent review system helps you retain knowledge through spaced repetition and adapts to your progress. Practice with Flashcards: Supercharge your vocabulary with built-in flashcards or take it a step further and create your own lists! On-The-Go Learning: Download lessons to your phone for offline access and take advantage of our hands-free audio feature! HOW CAN I START? When you sign up, you can find free access through a subscribing organization, like a public library, or you can subscribe with a 14-day free trial. Cancel at any time. Serious about language learning? Our paid subscriptions include: Individual Plan: Access to all of our languages in one learning profile. Family Plan: Access to all of our languages for you and up to five additional family members. For questions or feedback, please contact support@mangolanguages.com ​​Available Courses for English Speakers: • Arabic (Egyptian) • Arabic (Iraqi) • Arabic (Levantine) • Arabic (Modern Standard) • Armenian • Azerbaijani • Bengali • Chaldean Aramaic • Chinese (Cantonese) • Chinese (Mandarin) • Croatian • Czech • Cherokee • Danish • Dari • Dutch • Dzongkha • Filipino (Tagalog) • Finnish • French • French (Canadian) • German • Greek • Greek (Ancient) • Greek (Koine) • Haitian Creole • Hawaiian • Hebrew (Modern) • Hebrew (Biblical) • Hindi • Hungarian • Icelandic • Igbo • Indonesian • Irish • Italian • Japanese • Javanese • Kazakh • Korean • Latin • Malay • Malayalam • Norwegian • Pashto • Persian (Farsi) • Polish • Portuguese (Brazilian) • Potawatomi • Punjabi (Pakistani) • Romanian • Russian • Scottish Gaelic • Serbian • Shanghainese • Slovak • Spanish (Castilian) • Spanish (Latin American) • Swahili • Swedish • Tamil • Telugu • Thai • Turkish • Tuvan • Ukrainian • Urdu • Uzbek • Vietnamese • Yiddish Available Courses to Learn English: • English for Arabic (Egyptian) Speakers • English for Arabic (Modern Standard) Speakers • English for Armenian Speakers • English for Bengali Speakers • English for Chinese (Cantonese) Speakers • English for Chinese (Mandarin) Speakers • English for French Speakers • English for German Speakers • English for Greek Speakers • English for Haitian Creole Speakers • English for Hmong Speakers • English for Italian Speakers • English for Japanese Speakers • English for Korean Speakers • English for Polish Speakers • English for Portuguese (Brazilian) Speakers • English for Russian Speakers • English for Somali Speakers • English for Spanish (Latin American) Speakers • English for Turkish Speakers • English for Vietnamese Speakers https://mangolanguages.com/legal/terms-and-conditions/

About

IndoorCO2Map Data Collector

Contribute to a citizen science project by collecting indoor CO2 concentration data in public buildings. Use a supported CO2 sensor and this application to build a comprehensive dataset for analysis.

Highlights
  • Collect indoor CO2 concentration data
  • Supports Aranet, Airvalent, AirSpot, Inkbird-IAMT1 sensors
  • Contribute to citizen science project
  • Builds comprehensive indoor CO2 dataset
  • Data collection for non-residential buildings
Features
Read full description

This App is part of the IndoorCO2map.com project , a citizen data collection initiative to collect data about the CO2 concentration in non-residential Buildings (shops, restaurants, hospital etc.). Using this app and a supported CO2 Sensor, you can help creating a large and comprehensive dataset about Indoor CO2-Levels. Currently Aranet , Airvalent, AirSpot and the Inkbird-IAMT1 Sensors are supported.

Screenshots

Mango Languages4 screens
IndoorCO2Map Data Collector2 screens

Verdict

The call

The clearest difference is in-app purchases: IndoorCO2Map Data Collector at none against Mango Languages's 4. IndoorCO2Map Data Collector also leads on ads (none vs shown) and review sentiment (100% vs 77%). Mango Languages's advantage is update cadence (fortnightly vs every 3 months) and ratings volume (44K vs 2). On price, rating, device support and iOS requirement 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. Mango Languages sells 4 in-app purchases, starting at $13.99 per month. IndoorCO2Map Data Collector asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

IndoorCO2Map Data Collector holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Mango Languages has 44K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 77% of Mango Languages's written reviews are positive against 100% of IndoorCO2Map Data Collector's.

UpkeepUpdate frequency

Mango Languages ships an update fortnightly, IndoorCO2Map Data Collector every 3 months. The most recent releases landed on October 23, 2026 and October 19, 2026 respectively.

Scorecard7 real differences · 4 level
Mango Languages versus IndoorCO2Map Data Collector: the parameters behind the verdict, then further details
ParameterMango LanguagesIndoorCO2Map Data Collector
PriceFreeFree
Rating4.8 (44K ratings)5.0 (2 ratings) — better
Positive reviews77.4% of reviews100.0% of reviews — better
Number of ratings44K — better2
Update frequencyFortnightly — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
Best chart rank#176 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.515.0 — better
Further details — not scored
Size85 MB101 MB
Age rating12+4+
DeveloperCreative Empire, LLCAurel Wuensch

Customer experience

Mango Languages

All ratings44,333 ratings
Positive96.8%
Neutral1.6%
Negative1.6%
Written reviews398 reviews
Positive77.4%
Neutral8.5%
Negative14.1%

IndoorCO2Map Data Collector

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Mango Languages

Reported bugs

3 issues
  • App crashes when accessing flashcards
  • Downloading issues when traveling abroad
  • Inconsistent behavior when switching between lessons

Requested features

5 requests
  • Dark mode option
  • More grammar and writing support
  • Improved vocabulary tools
  • Customizable lesson structure
  • Offline access improvements

IndoorCO2Map Data Collector

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Mango Languages

Subscriptions4
  • Individual Plan (Monthly)14 Days trial$13.991 Month
  • Family Plan (Monthly)14 Days trial$19.991 Month
  • Individual Plan (Yearly)14 Days trial$119.991 Year
Show 1 more
  • Family Plan (Yearly)14 Days trial$149.991 Year
None

IndoorCO2Map Data Collector

No in-app purchases

Questions

Is Mango Languages free?
Mango Languages is free to download, with in-app purchases available.
Is IndoorCO2Map Data Collector free?
IndoorCO2Map Data Collector is free to download, with no in-app purchases.
Which has better reviews, Mango Languages or IndoorCO2Map Data Collector?
IndoorCO2Map Data Collector is rated higher. Mango Languages averages 4.8 out of 5 from 44K ratings, while IndoorCO2Map Data Collector averages 5.0 from 2 ratings.
Do Mango Languages or IndoorCO2Map Data Collector have ads?
Mango Languages shows ads; IndoorCO2Map Data Collector does not.
Which is updated more often, Mango Languages or IndoorCO2Map Data Collector?
Mango Languages ships an update fortnightly, and IndoorCO2Map Data Collector every 3 months. Most recently, Mango Languages was updated on October 23, 2026 and IndoorCO2Map Data Collector on October 19, 2026.

Other comparisons