
Memrise
Busuu
Babbel
Rosetta Stone
Lingvist
Anki
Mondly
Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.

Typeform
Survey Monkey
Google Forms
Jotform
Wufoo
Paperform
Qualtrics
Use our drag and drop online form builder for surveys, registrations, payment collections, lead generation and more. Our online forms offer robust features and 50+ integrations that allow you to automate workflows, capture leads & more.

Which is more popular?
Based on our record, Duolingo seems to be a lot more popular than Formstack. While we know about 70 links to Duolingo, we've tracked only 1 mention of Formstack.
Website, pricing, platforms and company facts side by side.
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| Website | duolingo.com | formstack.com |
| Pricing | — | |
| Company | Startup from the United States · 500 - 999 employees · 2011 | — |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Duolingo Review: Does it really work?
More videos
Formstack Review - Build Payment Forms
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Duolingo and Formstack. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Our team of dedicated writers and language enthusiasts is committed to bringing you insightful content and expert advice to enhance your Duolingo experience. From language-learning tips to in-depth analyses of...
Language learning apps such as Duolingo, Babbel and others have millions of registered users worldwide. Duolingo alone has over 300 million registered users.
Duolingo, Memrise, LingoDeer, Busuu, and Babbel are popular choices. Duolingo makes learning fun with games. Babbel designs its interface for each language.
From simple contact forms to complex surveys and event registrations, Formstack Forms offers a versatile platform to collect feedback and organize data effectively. This SurveyMonkey alternative provides more advanced...
Formstack emerges as a strong alternative to Survey Monkey, particularly for users who prioritize versatile form-building capabilities, robust integration options, and advanced security features. Its emphasis on data...
Formstack is another documentation tool that eliminates all the paperwork and automates the document creation process. It is a simple document creator that lets you produce different kinds of documents, right from...
Recommendations tracked on public social media and blogs since March 2021.


Duolingo: a language-learning app that uses points, levels, and rewards to keep you motivated. This is the most effective when you do it with your friends or a group of people who share your learning goals. I got really addicted to... Source: about 3 years ago
Hi! I wish I'd seen a post like this a few months ago. I would have been interested then. By now it's a little late for me. I just signed up for the 2 week free trial since that's about all the time I have left before I leave. If you... Source: about 3 years ago
If you want a guided course try Memrise or Duolingo. Source: over 3 years ago
Tired of paying $50 monthly for form mail on your website from https://formstack.com. Source: about 5 years ago
When comparing Duolingo and Formstack, you can also consider the following products.

Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.
Compare Memrise to Duolingo or Formstack:

Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!
Compare Typeform to Duolingo or Formstack:

Join the global language learning community, take language courses to practice reading, writing, listening and speaking and learn a new language. Learn English with busuu's .
Compare Busuu to Duolingo or Formstack:

Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.
Compare Survey Monkey to Duolingo or Formstack:

Babbel is a paid language learning service that aims to strike a balance between thoroughness and cost efficiency.
Compare Babbel to Duolingo or Formstack:
