Comparison

Underline vs Language Practice

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

Head to head
About

Underline

Features
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Learning languages in 5 steps: 1. You download the app for free 2. We introduce you to the Underline world 3. You add your own flashcards or use our browser plugin 4. You remember words by practicing with one of our learning modes 5. You know the language you learn! Advantages of learning languages with Underline: • You receive flashcards for learning from us or you build your own unique base yourself using our browser add-on • You get access to suggested words based on the words you translate. • You choose the learning mode that suits you best: - viewing flashcards, - written translation of words, - typing words by ear, - quizzes (choice of answers) - mixed mode. • You listen to the vocabulary as it is pronounced, thanks to which you remember them faster • You use a handy translator that you can use as a source of new flashcards from your phone • You can choose from a system of intelligent repetitions or folders to organize the level of knowledge of your words • You set the frequency of learning (your goal) with reminders about it • You monitor the progress in your profile - thanks to this you know how your level of language proficiency is improving If… • You learn English from scratch • Are you looking for a perfect solution at work • Your technical or business language needs "upgrade" • You are preparing for your high school diploma or other exams • You are going to go abroad, but you prefer to expand your vocabulary beforehand • You have many friends from other countries that you want to chat with freely … Underline will be your best choice! In our application for learning English or another language, you can use the flashcards received from us or build your own unique database. That is why Underline is perfect for: • for beginners • for intermediate • for advanced By combining two compatible tools - a mobile application and a browser plug (extension), Underline combines the process of searching, translating, saving, and learning words, which allows you to learn the vocabulary you really need. In addition to English, we also have languages such as: • Spanish • Ukrainian • German • French • Japanese • Korean • Chinese and many others. Underline works best with our browser plugin, so if you want to learn a personalized vocabulary, feel free to download it! Our extension works for Chrome, Opera and Microsoft Edge:https://chrome.google.com/webstore/detail/underline/ogdfpjfkomoeoodbemmkloabcjkmmbol Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Language Practice

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Tired of language apps that promise fluency but leave you tongue-tied? Ready to finally speak with confidence and see real, rapid progress? Soliloquy is your AI-powered partner for mastering new tongues, designed to get you engaging in active speaking practice and effective vocabulary building from day one! Why Soliloquy? Unlock Faster Language Learning! At Soliloquy, we believe in active language learning for faster results. Forget passively flipping through lessons. Our unique approach centers around getting you to use the language, especially through conversational speaking practice, supported by intelligent AI feedback and comprehensive tools to expand your vocabulary. If you're serious about learning languages and want an app that truly helps you communicate, Soliloquy is built for you. Engage in active language learning to get results faster! Key Features & Benefits That Get You Talking: - AI-Powered Speaking Practice: - Answer engaging questions in your target language and receive instant, personalized AI feedback on your pronunciation and phrasing. - Benefit: Dramatically improve your fluency, build confidence for real-world conversations, and learn useful phrases. Stop just studying grammar rules – make speaking practice your superpower and get AI feedback along with useful phrases to learn! - Extensive Lexicon (7,000+ Words): - Access a curated list of over 7,000 of the most commonly used words, each presented with a clear sentence for contextual understanding. - Add your own mnemonics to make even the trickiest vocabulary stick! - Benefit: Quickly build a strong and practical vocabulary foundation. Understand how words are used in real life, making your study more effective. - Smart Flashcards with Spaced Repetition (SRS): - Utilize our intelligent flashcards system based on Spaced Repetition to systematically review and reinforce your word bank. - Benefit: Optimize your memory retention and learn words efficiently. Say goodbye to forgotten terms and hello to long-term recall with effective flashcards for improving memory retention. - Integrated Dictionary: - Instantly look up any word you encounter. Hear its pronunciation by native-sounding Text-To-Speech and read detailed definitions and meanings. - Benefit: Never get stuck on an unknown word. Deepen your understanding as you progress in your language learning adventure. Lookup each word to hear it spoken and read its meaning and definition. - Crystal-Clear Text-To-Speech (TTS): - Listen to every sentence and word with high-quality audio. - Benefit: Sharpen your listening comprehension and perfect your pronunciation by hearing native-like audio. Essential for both vocabulary acquisition and improving how you speak. Listen to each sentence and word to improve comprehension and pronunciation. Unlock Your Language Potential Today! Imagine confidently ordering tapas on your trip to Spain (perfect for your Spanish learning journey!), discussing philosophy in French, or effortlessly connecting with German colleagues. Soliloquy transforms this dream into an achievable reality. Our active language learning method, especially focused on practical speaking and robust vocabulary acquisition, helps you get results faster and makes the process enjoyable. Supported Languages for Your Learning Adventure: Master your chosen language with Soliloquy! We currently support learning languages such as: English, Polish, German, Russian, Spanish (ideal for those focused on Spanish learning!), French, Italian, Portuguese, Ukrainian, Norwegian, Swedish, Danish, Dutch, Finnish, Greek, and Czech. More languages are always on our radar! Install Soliloquy now and speak your new language with confidence! Privacy Policy and Terms: https://soliloquy.fun/terms/en/

Screenshots

Underline4 screens
Language Practice4 screens

Verdict

The call

The clearest difference is in-app purchases: Underline at none against Language Practice's 2. Underline also leads on ads (none vs shown) and iOS requirement (10.0 vs 16.1). On price, update cadence 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. Language Practice sells 2 in-app purchases, starting at $9.99 per month. Underline asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 9, 2026 and September 8, 2026 respectively.

Scorecard3 real differences · 3 level
Underline versus Language Practice: the parameters behind the verdict, then further details
ParameterUnderlineLanguage Practice
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 months
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPod — betteriPhone
Requires iOS10.0 — better16.1
Further details — not scored
Size40 MB123 MB
Age rating4+17+
DeveloperDamian SkonecznyGratitude

In-app purchases

None

Underline

No in-app purchases

2 purchases

Language Practice

Subscriptions2
  • Premium$9.991 Month
  • Premium$69.991 Year

Questions

Is Underline free?
Underline is free to download, with no in-app purchases.
Is Language Practice free?
Language Practice is free to download, with in-app purchases available.
Do Underline or Language Practice have ads?
Language Practice shows ads; Underline does not.
Which is updated more often, Underline or Language Practice?
Underline ships an update every 2 months, and Language Practice every 2 months. Most recently, Underline was updated on September 9, 2026 and Language Practice on September 8, 2026.

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