Comparison

Langiddy vs 3Diagno

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

Head to head
About

Langiddy

Connect with language learners globally through a social chat platform. Text in your native and target languages with instant translations, and turn conversations into interactive flashcards to accelerate your learning journey.

Highlights
  • Global language learner connections
  • Instant text translation
  • Dual-language texting
  • Gamified flashcard system
  • Conversation-to-flashcard creation
  • Support for over 100 languages
Features
Read full description

# Don't just learn a language. Connect through it. Stay close to the people who matter, no matter what language they speak. Chat with friends, family, and people around the world. Understand each other with built-in translations, and learn each other's languages naturally through real conversations. **Langiddy — Connect. Chat. Learn.** ## ONE CONVERSATION. EVERYONE LEARNS. You don't need to speak the same language—or even be learning the same language—to connect. Practice Japanese while your friend practices Spanish, French, Korean, or another language. Each of you can experience the conversation in the language you're learning. No traditional language-exchange matching required. Just people connecting, chatting, and learning together. ## USE IT OR LOSE IT. You can study a language for years, but if you don't use it, you lose it. Langiddy gives you somewhere to practice what you're learning through conversations you actually want to have. Meet people around the world, make friends, reconnect with family, or practice anytime with Giddy, your AI language partner. ## YOUR CONVERSATIONS BECOME YOUR LESSONS. **Connect → Chat → Save → Review → Use → Grow** See conversations in the language you're learning. Tap when you need help understanding something. Explore words, break down phrases, hear pronunciations, and save useful expressions as flashcards. Review with spaced repetition, then put what you've learned back into real conversations. The more you connect, the more opportunities you have to learn. ## WHAT YOU CAN DO WITH LANGIDDY - Meet language learners from around the world - Connect with friends and family across languages - Discover people through Town Hall - Use Chat Now to find people available to chat - Practice anytime with Giddy, your AI language partner - Learn together even when practicing different languages - Translate messages when you need help - Explore words, meanings, and pronunciations - Save useful phrases as personalized flashcards - Review with spaced repetition - Send voice messages and practice speaking - Earn XP, level up, and build shared streaks ## A GYM FOR THE LANGUAGE YOU WANT TO SPEAK. Learning a language takes reps. Read it. Hear it. Write it. Speak it. Get things wrong. Get better. Come back tomorrow and do it again. Whether you're learning Japanese, Spanish, French, Korean, German, Chinese, Arabic, or another language, Langiddy gives you somewhere to actually use it. **Don't just study a language. Start living it.** Langiddy supports 100 languages, including Spanish, French, German, Japanese, Korean, Italian, Portuguese, Chinese, Arabic, Hindi, Russian, Dutch, Swedish, Greek, Turkish, Vietnamese, Thai, Indonesian, Tagalog, Hawaiian, and many more. Terms of Use: For more information, see our "Terms of Use" at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ or visit https://langiddy.com/services.

About

3Diagno

This app provides a realistic, interactive 3D model of the human musculoskeletal system. It's designed for students and professionals to visualize and demonstrate complex biomechanical movements for clinical reference and education.

Highlights
  • High-fidelity 3D musculoskeletal model
  • Precise joint range of motion controls
  • Orthopedic special-test demonstrations
  • Movement sequence recording and replay
  • Interactive simulation workflow
  • Customizable anatomical layer visibility
Features
Read full description

3Diagno — 3D Biomechanics & Clinical Simulator. 3Diagno is a comprehensive digital simulator providing a realistic, fully articulated 3D model of the human musculoskeletal system to help students visualize and professionals demonstrate complex biomechanical movements in 3D space. Designed mostly for physiotherapists and sports educators, 3Diagno offers a high-fidelity interactive environment for clinical reference and education. Key Features: • Reliable Accuracy: Explore a high-fidelity model with detailed layers for the skeleton, muscles, nerves and anatomical landmarks. • Precise Range of Motion Controls: Manipulate individual joints through clinically relevant ranges using a precise control system, with normal range-of-motion references included for educational comparison. • Orthopedic Special-Test Demonstrations: Access a built-in library of all the published orthopedic special-test positions and visual demonstrations for reference. • Simulator Recording & Replay: Record and replay movement sequences performed by the internal 3D model to study segment responses and biomechanical chains. • Interactive Simulation Workflow: Utilize a neutral pose reset and a simulated patient assessment workflow for clinical documentation practice. • Visual Customization: Toggle between anatomical layers and landmarks to isolate specific movement during biomechanical demonstrations. Intended Use & Disclaimers: 3Diagno purpose is to become your quick handy educational reference. • Simulation: All "Movement Recordings" and "Patient Tests" are performed only on the internal 3D musculoskeletal model for demonstration. This app does not record live user movement nor access camera for diagnostics nor store any data in it. • No Independent Diagnosis: This tool does not independently diagnose medical conditions and is not a replacement for professional clinical examination, medical imaging, or expert judgment.

Screenshots

Langiddy4 screens
3Diagno4 screens

Verdict

The call

The clearest difference is in-app purchases: 3Diagno at none against Langiddy's 1. Langiddy's advantage is update cadence (daily vs every 6 days) and ratings volume (15 vs 1). On price, rating, ads 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. Langiddy sells 1 in-app purchase, starting at $9.99 per month. 3Diagno asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Langiddy against 5.0 for 3Diagno. That said, the two scores are not equally well evidenced: Langiddy has 15 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Langiddy ships an update daily, 3Diagno every 6 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

Scorecard4 real differences · 6 level
Langiddy versus 3Diagno: the parameters behind the verdict, then further details
ParameterLangiddy3Diagno
PriceFreeFree
Rating5.0 (15 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings15 — better1
Update frequencyDaily — betterEvery 6 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size85 MB68 MB
Age rating17+9+
DeveloperNoah DuranFares Arab

Customer experience

Langiddy

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

3Diagno

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Langiddy

Subscriptions1
  • Unlimited access7 Days trial$9.991 Month
None

3Diagno

No in-app purchases

Questions

Is Langiddy free?
Langiddy is free to download, with in-app purchases available.
Is 3Diagno free?
3Diagno is free to download, with no in-app purchases.
Which has better reviews, Langiddy or 3Diagno?
Langiddy and 3Diagno are both rated 5.0 out of 5 on the App Store, from 15 and 1 ratings respectively.
Do Langiddy or 3Diagno have ads?
Neither Langiddy nor 3Diagno shows ads.
Which is updated more often, Langiddy or 3Diagno?
Langiddy ships an update daily, and 3Diagno every 6 days. Most recently, Langiddy was updated on November 3, 2026 and 3Diagno on November 6, 2026.

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