Comparison

NAWL Builder Multilingual vs Sentence Monster

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

Head to head
About

NAWL Builder Multilingual

Features
Read full description

NAWL Builder Multilingual: This application is designed to help learners and teachers make use of one of the most important lists of academic vocabulary words for second language learners of English, the New Academic Word List (NAWL). The list is open source and is used with permission of the authors. The app contains simple tools to help you download, email and organize the NAWL, as well as science-based study tools to quickly and efficiently learn the words, keep detailed record of your progress and the ability to email your progress to yourself or a teacher. The original definitions are written in simple English and the app also give you pronunciation of each word by a professional voice talent who is a native speaker of English of North American English. About the NAWL: The first version of the New Academic Word List (NAWL 1.0), published by Dr. Charles Browne, Dr. Brent Culligan is finished and available at the following link (www.newgeneralservicelist.org). The list is available in alphabetical order, with inflected forms, and with Standard Frequency Indices (Carroll, Davies, & Richman, 1971; Carroll, 1971). The list is used with permission. About Intelligent Flashcards: The app also contains an Intelligent Wordlist Maker and Intelligent Flashcard system. The Intelligent Wordlist Maker helps you to quickly and efficiently pick only the words you don’t know for study in the flashcard system. Rather than force you to go through the entire list at once, Intelligent Wordlist Maker guides you through the list by frequency bands, allowing you to add words little by little, just as you need them or when you have time. Based on the well documented science of “spaced-repetition”, the Intelligent Flashcard system systematically and efficiently helps you to review the words several times over a period of a month, giving you extra time with the words that are giving you difficulty.

About

Sentence Monster

This app helps language learners improve their writing skills by practicing vocabulary in context. It provides personalized sentence-writing exercises, feedback on accuracy, and targeted reviews for words that need more attention. The goal is to build active recall and confidence in using new words.

Highlights
  • Sentence-based vocabulary practice
  • Personalized review of mistakes
  • AI-generated sentence assignments
  • Writing feedback for accuracy
  • Progress and vocabulary insights
  • Support for multiple learning languages
Features
Read full description

Sentence Monster helps language learners turn vocabulary into sentences they can actually write. Knowing a word is not the same as being able to use it. Sentence Monster gives you short sentence-writing practice, checks your answers, and brings back the words you miss, forget, or still cannot use confidently. Practice with AI-picked sentences tailored to your learning history. Missed, weak, and fading words return through personalized review so you can build active recall instead of only recognizing words. Key features: - Sentence-based vocabulary practice - Personalized review from mistakes and weak words - AI-generated sentence assignments algorithm - Writing feedback for sentence accuracy - Progress and vocabulary insight - Practice across multiple learning languages Sentence Monster is built for learners who freeze when writing, even though they already know many words. Write the sentence, get feedback, and keep repeating the words that need more work. Supported learning languages: English, Korean, Japanese, Chinese, Spanish, French, German, Italian, Portuguese, Dutch, Polish, Turkish, Indonesian, Vietnamese, and Russian. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

NAWL Builder Multilingual4 screens
Sentence Monster4 screens

Verdict

The call

The clearest difference is update cadence: Sentence Monster at every 3 weeks against NAWL Builder Multilingual's every 108 months. NAWL Builder Multilingual's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

NAWL Builder Multilingual ships an update every 108 months, Sentence Monster every 3 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 7 level
NAWL Builder Multilingual versus Sentence Monster: the parameters behind the verdict, then further details
ParameterNAWL Builder MultilingualSentence Monster
PriceFreeFree
Rating—1.5 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 108 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.1
Further details — not scored
Size45 MB35 MB
Age rating4+12+
DeveloperEFL TechnologiesMINHYEONG YU

In-app purchases

None

NAWL Builder Multilingual

No in-app purchases

None

Sentence Monster

No in-app purchases

Questions

Is NAWL Builder Multilingual free?
NAWL Builder Multilingual is free to download, with no in-app purchases.
Is Sentence Monster free?
Sentence Monster is free to download, with no in-app purchases.
Do NAWL Builder Multilingual or Sentence Monster have ads?
Neither NAWL Builder Multilingual nor Sentence Monster shows ads.
Which is updated more often, NAWL Builder Multilingual or Sentence Monster?
NAWL Builder Multilingual ships an update every 108 months, and Sentence Monster every 3 weeks. Most recently, NAWL Builder Multilingual was updated on October 27, 2026 and Sentence Monster on October 25, 2026.

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