Polyspeech vs Line
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Polyspeech
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Polyspeech is your personal language tutor that adapts to your level and keeps you talking. Instead of memorizing flashcards or repeating scripted phrases, you practice natural conversations on topics that interest you — and get instant feedback to improve. Why Polyspeech AI? - Real conversations from Day 1 — Practice speaking naturally with an AI tutor that responds like a real person - Mandarin Chinese, Korean, Japanese, Spanish, and French — five of the most in-demand languages, taught with cultural context - Adaptive difficulty — Conversations adjust to challenge you at just the right level - Learn on your schedule — Pick a topic, start talking, and build your streak day by day - Track your progress — See your streak grow and your confidence build over time - Review and memorize — Save words and phrases to your flashcards for review Whether you're preparing for a trip, connecting with family, or building a career skill, Polyspeech AI gets you speaking from day one. Download now and start your first conversation. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Line
Learn languages through immersive story-based conversations with AI characters. Speak from day one in interactive scenarios, build relationships, and unlock new locations. Get grammar reports and instant help to improve your fluency.
- Immersive story-based learning
- Real-time AI conversations
- Explorable interactive maps
- Customizable scenario creation
- Instant translations and pronunciation
- Grammar feedback reports
- Adaptive learning levels
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Learn a language by talking your way through everyday scenes. Line drops you into real situations, a café, a hotel check-in, a job interview, a night out, and puts you in a real conversation with a character who listens and talks back in real time. No flashcards, no scripts. You speak, they answer, and you keep going. A GUIDED PATH Every unit teaches the phrases first, then hands you a scene to use them in. Learn, speak, listen, recall: short lessons you can hear and repeat, with pronunciation feedback on every word you say. SCENES FROM REAL LIFE Greetings, ordering food, getting around, shopping, work and study, health, making plans, telling stories about your travels. Each scene has its own character and goal, and the ones you care about rise to the top. HELP WHEN YOU WANT IT Tap for a translation or a suggested reply, and put your phone down when you do not need it. The character keeps the conversation moving at your level. FOURTEEN LANGUAGES Spanish, French, Portuguese, German, Italian, Dutch, Swedish, Polish, Russian, Turkish, Korean, Hindi, Indonesian and Vietnamese. TRY IT FREE Start a free trial on the yearly plan and speak your way through as many scenes as you like. Line Pro unlocks every scene and lesson in every language. Subscriptions renew automatically until cancelled and are managed in your Apple ID settings. Sign in with Apple or Google and start speaking today. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://app.tryline.ai/legal/privacy
Screenshots
Verdict
The clearest difference is update cadence: Line at daily against Polyspeech's every 10 days. Polyspeech's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price, ads and in-app purchases 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
Both are free to download. Polyspeech sells 2 in-app purchases, starting at $12.99 per month and Line sells 2 in-app purchases, starting at $34.99 per month. Whichever you choose, the download price is not the number that matters.
Polyspeech ships an update every 10 days, Line daily. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.
| Parameter | Polyspeech | Line |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.9 (7 ratings) — better |
| Positive reviews | — | 16.7% of reviews |
| Number of ratings | — | 7 — better |
| Update frequency | Every 10 days | Daily — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 48 MB | 93 MB |
| Age rating | 4+ | 12+ |
| Developer | Eric Eng | Bounty Studio, Inc. |
In-app purchases
Polyspeech
- Polyspeech Premium7 Days trial$12.991 Month
- Polyspeech Premium (Annual)7 Days trial$109.991 Year
Line
- Line Pro Monthly$34.991 Month
- Line Pro Yearly$359.991 Year






