Comparison

PolyGPT vs The Visual Key

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

Head to head
About

PolyGPT

Practice oral language skills with AI in multiple languages simultaneously. Switch between languages during conversations to overcome expression difficulties. This tool also functions as a multilingual translator.

Highlights
  • Multilingual AI conversations
  • Simultaneous language practice
  • Translation mode
  • Bookmark conversations
  • Automatic sentence reading
  • Flexible language settings
Features
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PolyGPT is an oral training tool that combines AI conversation. Its greatest feature is the ability to engage in conversations using multiple languages simultaneously. If you have tried using ChatGPT and voice plugins for oral conversation training, you may have noticed the limitation of only practicing with a single foreign language. This app resolves that limitation and enhances the convenience of oral training. Please note that you will need an API key from OpenAI to use the features of this app. Obtain an OpenAI API key: https://platform.openai.com/account/api-keys (New OpenAI accounts can be created and used for free.) "Why is it important to use multiple languages simultaneously?" * If you are proficient in multiple languages, freely switching between different languages for continuous conversations can be a fun and challenging training exercise. * During conversations with AI, you may encounter difficulties in expressing yourself in a particular language (1. Not knowing how to articulate what you want to say in that language, 2. Having a mental block in that language). In such situations, you can switch back to your native language (or a more proficient foreign language) to continue the conversation. The app will translate your content into other languages, and the AI's responses will include various languages. You can understand the meaning of the AI's responses through the language you are familiar with. After conveying your thoughts using your native language, it is recommended to listen to and read translated texts in the language you want to learn. Imagine yourself being able to respond directly in that language. The language settings are flexible (1-9 languages) and can include multiple foreign languages, or just a combination of your native language and one foreign language, or even just a single foreign language, among other possibilities. "Bookmark Feature" Click the star icon next to the conversation to bookmark sentences, making it convenient for repeated browsing and practice. Click the star icon in the upper-left corner to add it to your favorites. "Automatic Reading" Every sentence can be read aloud, with the corresponding sentence automatically highlighted. You can also play all the sentences continuously by clicking the triangle play button next to the conversation. "Translation Only" In addition to AI conversation mode, this app also supports switching to "Translation Only" mode. It translates only the sentences you input into other languages, and the AI does not respond. It functions like a multilingual translator. In fact, when traveling in non-English-speaking areas, using this app and setting the language to [Your native language + English + Local language], three languages, will be more convenient than using a translator with only two languages. Your native language and the local language are used to ensure mutual understanding of the intended meaning in the conversation. Additionally, due to the universality of English, it can serve as a connection point for direct communication between both parties. For example, you can use a certain English word from the sentences together to convey meaning. "Text Input" In addition to voice input, this app also supports text input, allowing you to input sentences that may be difficult to recognize. "Additional Information" No child has ever mastered their native language communication by simply reading dictionaries or memorizing grammar rules. Listening and speaking are essential. I wish you success in learning languages through the flexible application of various tools and methods. This app may also make further updates based on considerations in language learning.

About

The Visual Key

Features
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App Description: Visual Key is a revolutionary Chinese input method based on character structure algorithms, redefining the efficiency and convenience of typing in Chinese. Unlike traditional Pinyin and stroke-based input methods, Visual Key utilizes structural artificial intelligence technology and “what you see is what you get” graphical mapping techniques, allowing users to quickly and accurately input Chinese characters through simple visual recognition. It enables non-native Chinese speakers to learn to type in Chinese within three minutes, eliminating the learning barriers associated with Chinese input, enhancing the fun of character input, and improving typing efficiency to provide users with an unprecedented level of convenience. App Features: • What You See is What You Get Visual Mapping: Input Chinese characters through graphical recognition without needing to master Pinyin, stroke counts, or radicals. • Multiple Device Support: Compatible with iOS, iPadOS, and watchOS devices, offering a consistent and seamless input experience. • Extensive Character and Vocabulary Library: Supports over 80,000 Chinese characters and more than 670,000 words, providing smart matching and personalized predictive input. • Simple Three-Step Operation: Easily achieve fast and accurate Chinese input. App Advantages: Without a doubt, Visual Key is suitable for Chinese users as well as non-native Chinese speakers worldwide. This input method, with its innovative visual mapping technology, removes language barriers and helps global users input Chinese more efficiently. It is applicable in various scenarios, including daily communication, learning, and office tasks, making the experience of typing in Chinese incredibly easy and enjoyable. Customer Support: For assistance or inquiries about channel partnerships, please contact us through the “Customer Support” feature within the app, or visit our website at http://www.TheVisualKey.com for more information. Thank you for choosing Visual Key, the innovative Chinese input method that brings you a brand-new typing experience! Visual Key redefines Chinese input with zero learning curve. Through AI-driven visual mapping, users can instantly start typing Chinese, achieving rapid input in just three steps. 应用介绍: Visual Key是一款基于文字结构算法的中文输入法,是中文输入方式的技术革命,重新定义了中文输入的效率和便利。不同于传统拼音和笔画输入方式,Visual Key采用了结构式人工智能技术以及“所见即所得”的图形映射技术,使用户能够通过简单的视觉识别快速准确地输入中文。可以让汉语非母语的使用者在三分钟之内学会输入汉字汉语,Visual Key消除了中文输入的学习障碍,增加了汉字输入的趣味性,提升了输入效率,为用户提供前所未有的便捷体验。 应用功能: • 所见即所得的视觉映射:通过图形识别输入中文字符,无需掌握汉语拼音、笔画数量及偏旁部首知识。 • 多种设备支持:支持iOS、iPadOS和watchOS设备,提供一贯、流畅的输入体验。 • 丰富的字库词库:支持8万+汉字和67万+词汇,提供智能匹配和个性化联想输入。 • 简单三步操作:轻松实现快速、精准的中文输入。 应用优势: 毫无疑问,Visual Key适合中国用户,同时适合汉语非母语的世界各国用户使用。这款输入法通过创新的视觉映射技术,消除了语言障碍,帮助全球用户更高效地进行中文输入。应用场景包括日常沟通、学习、办公等,让汉语输入体验变得前所未有的轻松愉悦。 客户支持: 如需帮助或咨询渠道合作,请通过应用内的“客户支持”功能联系我们,或访问我们的网站http://www.TheVisualKey.com获取更多信息。 感谢您选择Visual Key视觉中文输入法,为中文输入带来全新体验!

Screenshots

PolyGPT4 screens
The Visual Key3 screens

Verdict

The call

The clearest difference is update cadence: The Visual Key at every 3 days against PolyGPT's fortnightly. PolyGPT's advantage is iOS requirement (12.0 vs 14.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PolyGPT ships an update fortnightly, The Visual Key every 3 days. The most recent releases landed on June 2, 2026 and September 9, 2026 respectively.

Scorecard2 real differences · 7 level
PolyGPT versus The Visual Key: the parameters behind the verdict, then further details
ParameterPolyGPTThe Visual Key
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyFortnightlyEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better14.0
Further details — not scored
Size62 MB74 MB
Age rating4+4+
Developer镜州 陈SEMANTIC TECHNOLOGIES LLC

In-app purchases

None

PolyGPT

No in-app purchases

None

The Visual Key

No in-app purchases

Questions

Is PolyGPT free?
PolyGPT is free to download, with no in-app purchases.
Is The Visual Key free?
The Visual Key is free to download, with no in-app purchases.
Do PolyGPT or The Visual Key have ads?
Neither PolyGPT nor The Visual Key shows ads.
Which is updated more often, PolyGPT or The Visual Key?
PolyGPT ships an update fortnightly, and The Visual Key every 3 days. Most recently, PolyGPT was updated on June 2, 2026 and The Visual Key on September 9, 2026.

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