Comparison

LibroAI vs Lion AI

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

Head to head
About

LibroAI

Learn languages by reading AI-generated stories tailored to your interests and skill level. Instantly translate words with a tap and track your vocabulary growth. Enjoy an immersive and effective learning experience without boring drills.

Highlights
  • AI-generated stories
  • Instant word translation
  • 10 language pairs
  • Progress tracking
  • Personalized difficulty
  • Offline mode
Features
Read full description

Stop drilling flashcards. Start reading -- and now LISTENING -- to stories you actually want to finish. LibroAI generates custom stories in your target language, built around YOUR interests and matched to YOUR exact skill level. Read them, listen to them like an audiobook, and tap any word for instant translation. That's the whole method, and it works because it's how you learned your first language. NEW IN THIS VERSION - Audiobook-Quality Narration: Every story can be played out loud with natural-sounding AI audio - Live Word Highlighting: Words light up in sync with the audio so your eyes follow your ears - Auto-Scroll: The page follows the narration. Sit back, listen, and absorb. - My Words Library: Every word you've ever translated, saved automatically. Watch your vocabulary collection grow. WHY LIBROAI BEATS FLASHCARD APPS - Endless fresh content: AI writes new stories on demand, you'll never run out - Stories built around YOUR interests, not textbook scenarios about Maria going to the market - Train reading, listening, and pronunciation at the same time - Difficulty adapts to you: never too easy, never too frustrating - One tap = instant translation. No switching apps, no breaking your flow - Real progress you can see: every word you've learned, tracked daily, weekly, all-time 10 LANGUAGES Spanish, French, German, Italian, Portuguese, Russian, Japanese, Korean, Chinese, English 24 STORY TOPICS Travel, Food, Technology, Romance, Mystery, Sci-Fi, Sports, Business, History, Art, Philosophy, and more. Pick what you love. Learn the language around it. 3 SKILL LEVELS Beginner, Intermediate, or Expert. Switch anytime as you grow. BUILT FOR - Learners bored of grinding the same 50 words on other apps - Commuters who want hands-free language practice - Readers who want to actually remember the words they look up - Anyone who has tried flashcards and quietly given up GO PREMIUM, GO UNLIMITED Start free with daily stories and translations. Unlock unlimited stories, unlimited audio, and unlimited translations with LibroAI Premium: - Weekly: $5.99 - Yearly: $24.99 (save 17%, less than $2.50/month) Cancel anytime from your App Store settings. Payment will be charged to your Apple ID at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://blackboxcode.io/Privacy.html

About

Lion AI

This AI chat assistant is designed for children and teens, offering a safe and educational experience with robust parental controls. It provides age-adapted responses, homework help, and creative content, all within a secure environment that prioritizes privacy.

Highlights
  • Triple-layer content safety filters
  • PIN-protected parental controls
  • Age-adapted responses
  • Homework help and creative content
  • Voice reading and colorful themes
  • Daily message reports
Features
Read full description

Meet Lion AI — the safest AI chat app built just for kids and teens. Lion AI gives children ages 6–15+ a fun, encouraging AI assistant that helps them learn, explore, and get creative — all within a triple-layer safety system designed to keep every conversation age-appropriate. Why parents love Lion AI: • Triple-layer content safety filters every message in real time • Parental Controls protected by a 4-digit PIN — set rules, block topics, and limit daily usage • Age-adapted responses for 6–8, 9–11, 12–14, and 15+ year olds • Daily message reports so you always know what your child is asking • Lion Family sync keeps parents in the loop from the Lion Family app Why kids love Lion AI: • A friendly AI companion that explains things in a way they understand • Homework help that guides thinking instead of just giving answers • Fun stories, facts, and creative writing on demand • Voice reading brings answers to life with natural-sounding speech • Colorful themes to make it their own Premium includes access to all Lion apps: One subscription unlocks Lion AI, Lion Family, Lion Browser, and Lion for YouTube — the complete family safety suite. • 100 messages per day • Full parental controls • Chat history • All themes and voices Built for families. Safe by design. Lion AI uses advanced AI safety filtering on every single message — both what your child sends and what the AI responds. No inappropriate content. No personal data collection from children. Just safe, educational, fun conversations. Privacy Policy: https://lionfamily.org/privacy Terms of Use: https://lionfamily.org/terms

Screenshots

LibroAI4 screens
Lion AI4 screens

Verdict

The call

The clearest difference is rating: LibroAI at 5.0 against Lion AI's 4.5. LibroAI also leads on iOS requirement (16.4 vs 18.0). Lion AI's advantage is ads (none vs shown). On price, review sentiment, ratings volume and update cadence 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. LibroAI sells 4 in-app purchases, starting at $2.99 per 7 days and Lion AI sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

LibroAI holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 8 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

LibroAI ships an update every 8 days, Lion AI every 2 weeks. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
LibroAI versus Lion AI: the parameters behind the verdict, then further details
ParameterLibroAILion AI
PriceFreeFree
Rating5.0 (8 ratings) — better4.5 (4 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings8 — better4
Update frequencyEvery 8 days — betterEvery 2 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better18.0
Further details — not scored
Size98 MB45 MB
Age rating4+4+
DeveloperBlack Box Code LLCLion Software, LLC

Customer experience

LibroAI

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Lion AI

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

LibroAI

Subscriptions4
  • Premium Weekly Offer$2.997 Days
  • Premium Weekly$5.997 Days
  • Premium Yearly Offer$12.991 Year
Show 1 more
  • Premium Yearly3 Days trial$24.991 Year
4 purchases

Lion AI

Subscriptions4
  • Individual Plan$3.991 Month
  • Premium Family Plan7 Days trial$9.991 Month
  • Individual Plan (Annual)$39.991 Year
Show 1 more
  • Premium Family Plan (Annual)14 Days trial$99.991 Year

Questions

Is LibroAI free?
LibroAI is free to download, with in-app purchases available.
Is Lion AI free?
Lion AI is free to download, with in-app purchases available.
Which has better reviews, LibroAI or Lion AI?
LibroAI is rated higher. LibroAI averages 5.0 out of 5 from 8 ratings, while Lion AI averages 4.5 from 4 ratings.
Do LibroAI or Lion AI have ads?
LibroAI shows ads; Lion AI does not.
Which is updated more often, LibroAI or Lion AI?
LibroAI ships an update every 8 days, and Lion AI every 2 weeks. Most recently, LibroAI was updated on October 6, 2026 and Lion AI on October 24, 2026.

Other comparisons