Comparison

Subject Quest vs Grow Fluency

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

Head to head
About

Subject Quest

Features
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SubjectQuest makes learning fun for students in grades 1 through 12. Choose your grade and favorite subjects, then dive into quick, engaging quizzes across Math, English, Science, History, Geography, and Art. Every correct answer earns you coins and XP. Level up as you learn, build your streak by acing quizzes, and compete with other students on the leaderboard to see who knows the most. Features: 6 subjects with hundreds of questions tailored to your grade level Timed quizzes that keep you focused and challenged Earn coins and XP with every correct answer Level up system that tracks your learning journey Daily, weekly, and all-time leaderboards Streak tracking to keep you motivated Detailed stats on your quiz performance and accuracy Simple, secure account creation with password recovery Works offline — no internet required to play Designed with student privacy in mind (COPPA-compliant) Whether you're reviewing for a test or just want to challenge yourself, SubjectQuest turns studying into a game you'll actually want to play.

About

Grow Fluency

Learn languages by reading engaging stories. Tap any word for instant translation and save it for spaced repetition review. An AI tutor and Anki import support your learning journey.

Highlights
  • Learn through stories
  • Tap-to-translate
  • Spaced repetition review
  • AI language tutor
  • Import vocabulary (Anki)
  • Progress tracking
Features
Read full description

Grow Fluency — Learn Languages Through Immersion Most language apps teach you words in isolation. Grow Fluency puts them in context — where they actually stick. Read a story. Watch a YouTube video. Import an article you actually care about. Tap any word you don't recognize to see its translation instantly. Save it, and Grow Fluency brings it back at the right moment using spaced repetition — so you review words just before you'd forget them. It's the same simple loop everywhere: encounter a word in something real, tap it, keep it. Read Short stories generated around your own vocabulary, at your level. Tap any word for an instant translation. Watch Paste any YouTube link and watch with your target language's subtitles live in the app. Miss something? Hit translate-back — the video freezes, you hear the last few seconds explained in your native language, then it replays them in the original. Tap any word in the subtitles to save it straight to your collection. Import Bring in articles from the web by pasting a link, or drop in your own text. Read anything you want with tap-to-translate on every word. Practice Output Practice turns recognition into real production — write a journal entry using the words you've learned and get it corrected line by line. Review Smart spaced repetition schedules every saved word automatically. Track streaks, watch your words move from "learning" to "mastered." Also included: 12 languages, including Egyptian Arabic, Lebanese Arabic, Mandarin, Japanese, and Korean A tutor for any language question, any time Anki deck import — bring your existing decks with you Progress tracking and achievements Learning a language doesn't have to mean grinding through flashcard decks. Grow Fluency turns the things you'd already read and watch into the lesson. Start reading. Start watching. Start learning. Grow Fluency Pro is an auto-renewing subscription, available monthly ($6.99/month) or annually ($59.99/year). Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your device's Account Settings. Privacy Policy: https://grow-fluency.notion.site/Grow-Fluency-Privacy-Policy-35a73982a33180868652e9e43a1ccf66?source=copy_link Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Subject Quest4 screens
Grow Fluency4 screens

Verdict

The call

The clearest difference is in-app purchases: Subject Quest at none against Grow Fluency's 2. Grow Fluency's advantage is update cadence (every 4 days vs every 5 months) and device support (4 vs 2). On price, ads 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. Grow Fluency sells 2 in-app purchases, starting at $4.99 per month. Subject Quest asks for nothing beyond the download.

UpkeepUpdate frequency

Subject Quest ships an update every 5 months, Grow Fluency every 4 days. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
Subject Quest versus Grow Fluency: the parameters behind the verdict, then further details
ParameterSubject QuestGrow Fluency
PriceFreeFree
Rating—3.5 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—4 — better
Update frequencyEvery 5 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.115.1
Further details — not scored
Size41 MB70 MB
Age rating4+4+
DeveloperSagarika AnnapragadaJosiah Reed

In-app purchases

None

Subject Quest

No in-app purchases

2 purchases

Grow Fluency

Subscriptions2
  • Gibberfish Pro7 Days trial$4.991 Month
  • Gibberfish Pro$39.991 Year

Questions

Is Subject Quest free?
Subject Quest is free to download, with no in-app purchases.
Is Grow Fluency free?
Grow Fluency is free to download, with in-app purchases available.
Do Subject Quest or Grow Fluency have ads?
Neither Subject Quest nor Grow Fluency shows ads.
Which is updated more often, Subject Quest or Grow Fluency?
Subject Quest ships an update every 5 months, and Grow Fluency every 4 days. Most recently, Subject Quest was updated on October 14, 2026 and Grow Fluency on October 7, 2026.

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