Polyidiom vs CapSee
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Polyidiom
Master idioms and slang across multiple languages with engaging illustrations and smart learning algorithms. Track your progress, save favorites, and explore cultural backgrounds. Offline access makes learning convenient anytime, anywhere.
- Card-based learning with definitions and history
- Detailed explanations of cultural backgrounds
- Save favorite idioms for review
- Track learning progress and statistics
- Support for six languages
- Cartoon illustrations for enhanced memory
- Offline learning support
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PolyIdiom - Multi-Language Idiom Learning PolyIdiom is a multi-language idiom learning app designed for language learners. Through beautiful cartoon illustrations and smart learning algorithms, idiom learning becomes vivid and interesting. Supporting Chinese, English, Spanish, French, Japanese, and Korean, you can easily master cultural essences regardless of your native language. Core Features Card-based Learning: Flip-style learning experience with definitions, origin stories, and practical examples Detailed Explanations: Deep understanding of cultural backgrounds and usage scenarios Smart Favorites: Save your favorite idioms for review anytime Learning Statistics: Track progress and view learning achievements and trends Product Highlights Six Language Support: Complete coverage of Chinese, English, Spanish, French, Japanese, Korean Cartoon Illustration Design: Beautiful illustrations for each idiom to enhance memory Smart Learning Algorithm: Personalized content recommendations based on learning habits Elegant Interface Design: Clean and beautiful UI focused on learning experience Offline Learning Support: Learn anytime, anywhere without internet connection Subscription Service Free Version: Learn 3 idioms daily, 3 favorites limit, 1 language switch Premium Membership: Unlimited learning, unlimited favorites, switch languages anytime, ad-free experience Subscription Details Yearly Subscription: $7.99/year, average $0.67 per month Monthly Subscription: $1.99/month, flexible subscription Service Information Subscription auto-renews unless cancelled at least 24 hours before the current period ends Manage or cancel subscription in iPhone Settings > Apple ID > Subscriptions The current free trial period will be forfeited upon subscription activation Subscription fee charged to iTunes account upon purchase confirmation Terms of Service: https://polyidiom.app/terms-of-service Privacy Policy: https://polyidiom.app/privacy-policy Download PolyIdiom now and start your multi-language idiom learning journey!
CapSee
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Every snap, an answer. See something you don’t recognize? Open CapSee and take a photo. CapSee helps you identify animals, plants, food, objects, and everyday things — then explains what they are, what’s interesting about them, and how to say them in another language. CapSee is an AI photo encyclopedia and language-learning companion. It turns the real world around you into something you can understand, learn from, and come back to later. ◆ Key Features ◆ 【Snap to Identify】 Point your camera at an object and take a photo. CapSee detects the main subject and tells you what it is. Animals, plants, food, museum exhibits, toys, and everyday objects can all become moments of discovery. 【Easy-to-Understand Facts】 CapSee does more than give you a name. It explains features, uses, habits, background stories, and useful facts in a clear and friendly way. 【Learn Languages Naturally】 Each result includes words, pronunciation, and bilingual example sentences in your learning language. Instead of memorizing from a fixed word list, you learn from the things you actually see. 【Ask Follow-Up Questions】 Want to know more? Ask questions about any result and continue exploring. Go from “What is this?” to “Why does it work this way?” in one smooth conversation. 【Save Your Discoveries】 Every capture is saved automatically, so you can revisit the animals, plants, objects, and words you’ve discovered. Build your own visual collection from everyday curiosity. ◆ Who Is CapSee For? ◆ · Curious people who want quick answers about the world around them · Language learners who prefer real-world context over rote memorization · Parents exploring nature, objects, and words with their children · Travelers, museum visitors, market-goers, and everyday explorers · Anyone who enjoys collecting knowledge from real life ◆ Why Choose CapSee? ◆ · Deeper than image search: not just a name, but useful explanations · Broader than photo translation: recognize real-world objects, not only text · More natural than flashcards: learn words from things you actually see · More interactive than a static encyclopedia: ask follow-up questions anytime Snap once. Understand more. CapSee turns curiosity into knowledge. Privacy Policy: https://docs.qq.com/doc/DQ2hpck5DcXp4cGJs Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Polyidiom at every 3 days against CapSee's weekly. 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
Both are free to download. Polyidiom sells 3 in-app purchases, starting at $1.99 per month and CapSee sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
Polyidiom ships an update every 3 days, CapSee weekly. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.
| Parameter | Polyidiom | CapSee |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 43 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | 亲强 吴 | 文巧 刘 |
In-app purchases
Polyidiom
- PolyIdiom Premium (Monthly)$1.991 Month
- PolyIdiom Premium (Yearly)$7.991 Year
- Polyidiom Lifetime Membership$9.99
CapSee
- 月度会员$3.991 Month
- Quarterly$7.993 Months
- Yearly$89.991 Year









