Comparison

Mango Languages vs Sustainable Libraries

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

Sustainable Libraries

This app guides library staff through making their institutions more sustainable and resilient. It offers practical steps, resources, and tools to foster environmentally sound, economically feasible, and socially equitable practices.

Highlights
  • Sustainability roadmap guidance
  • Checklists for sustainable practices
  • Notes feature for planning
  • News feed for updates
  • Content sharing capabilities
  • Step-by-step task breakdown
Features
Read full description

Where it works: Worldwide What it does: Guides users through the process of making their library more sustainable and thereby more resilient through practices that are environmentally sound, economically feasible, and socially equitable. Why we need it: The app is a tool for directors, trustees and  staff at all levels, guiding users in establishing policies and practices, developing partnerships, and identifying resources to create a more sustainable library that will be both relevant and financially stable into the future.  Functionality: The app provides checklists, a notes feature, a news feed and shareability of content. What is it: An application for smartphones that enables users to interact with the Sustainability Initiative’s Road Map publication. How do you use it: Install the App and follow the map, working  step-by-step toward the dual goals of a sustainable library and a sustainable community.  There are many possible routes, and the roadmap will guide you. Feel free to explore, considering which path bests suits your library and community.  Follow the links in depth, read the stories of sustainability accomplishments of other libraries.  Examine your policies and those of others and then draft or update what you have in place. Incorporate sustainability into your budget and strategic planning, and set a long-term goal that  your library will become a model of sustainability worthy of emulation and recognition in your community . What benefits do you get: The roadmap will break down the tasks of becoming more sustainable into easy to paths. It will map out the “neighborhoods” of information. At each turn you will learn and gather information, compiling resources and ticking off accomplishments as you go. One step at a time, at your own pace, you will stay on the path to success. A sustainable library is fiscally responsible and stable; able to withstand the next budget cut, the next crisis, or the next technology revolution. The sustainable library has an empowered community behind it. Why should this mobile app be important to you: You want to be ready for what comes next, we all do. Your days are full, with competing demands for your time.  You have a job to do and creating a more sustainable library is just a small piece of it. You can’t fit another project into your day. But you can take a few  minutes a day, while waiting for a bus or for your coffee to brew, to consider new questions and to take one more step to take towards making your library sustainable. It doesn’t matter if you are the custodian, the director, or a trustee, or whether you have years of experience or are just starting out.  You will learn something and you will have something to share with others.

Screenshots

Mango Languages4 screens
Sustainable Libraries4 screens

Verdict

The call

The clearest difference is in-app purchases: Sustainable Libraries at none against Mango Languages's 4. Sustainable Libraries also leads on rating (5.0 vs 4.8) and iOS requirement (12.0 vs 15.5). Mango Languages's advantage is update cadence (fortnightly vs every 66 months) and ratings volume (44K vs 1). On price, ads 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. Mango Languages sells 4 in-app purchases, starting at $13.99 per month. Sustainable Libraries asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sustainable Libraries 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 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Mango Languages ships an update fortnightly, Sustainable Libraries every 66 months. The most recent releases landed on October 1, 2026 and September 23, 2026 respectively.

Scorecard7 real differences · 4 level
Mango Languages versus Sustainable Libraries: the parameters behind the verdict, then further details
ParameterMango LanguagesSustainable Libraries
PriceFreeFree
Rating4.8 (44K ratings)5.0 (1 ratings) — better
Positive reviews77.5% of reviews—
Number of ratings44K — better1
Update frequencyFortnightly — betterEvery 66 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
Best chart rank#167 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.512.0 — better
Further details — not scored
Size85 MB12 MB
Age rating12+4+
DeveloperCreative Empire, LLCCapira Technologies

Customer experience

Mango Languages

All ratings44,297 ratings
Positive96.8%
Neutral1.6%
Negative1.6%
Written reviews396 reviews
Positive77.5%
Neutral8.3%
Negative14.1%

Sustainable Libraries

All ratings1 ratings
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

Sustainable Libraries

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

Sustainable Libraries

No in-app purchases

Questions

Is Mango Languages free?
Mango Languages is free to download, with in-app purchases available.
Is Sustainable Libraries free?
Sustainable Libraries is free to download, with no in-app purchases.
Which has better reviews, Mango Languages or Sustainable Libraries?
Sustainable Libraries is rated higher. Mango Languages averages 4.8 out of 5 from 44K ratings, while Sustainable Libraries averages 5.0 from 1 ratings.
Do Mango Languages or Sustainable Libraries have ads?
Neither Mango Languages nor Sustainable Libraries shows ads.
Which is updated more often, Mango Languages or Sustainable Libraries?
Mango Languages ships an update fortnightly, and Sustainable Libraries every 66 months. Most recently, Mango Languages was updated on October 1, 2026 and Sustainable Libraries on September 23, 2026.

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