上下求索 vs FEI AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
上下求索
This intelligent assistant supports voice, text, and image input for Q&A and inspiration. Explore bite-sized knowledge, generate unique photos with the Time Gallery, and engage in follow-up questions for deeper understanding.
- Voice, text, and image input
- Follow-up questions
- Extended reading content
- Bite-sized Knowledge module
- Time Gallery photo generation
- Task list and result page
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SeekTruth brings AI questions, voice input, image understanding and creative tools into one native app. Start with a question, an idea or a picture, then ask follow-up questions and revisit your conversations and creations. Features: • Ask with text, voice or images. Answers appear progressively, and you can stop an answer or continue with a follow-up question. • A dedicated input page offers expression refinement, question completion, and Focus and Deep modes. • Search conversation history, edit titles, archive conversations or delete them. • Explore daily weather, AI briefings and featured creations. Browse curated content, creations and news, then ask AI about what you see. • Four native tools: Life Essentials for weather and news, Speak & Translate for voice, text and image translation, AI Music for song creation, and Image Studio for text-to-image generation and reference-image editing. • Revisit your images and music in your works and album, with playback, saving and sharing actions where available. • Memberships and in-app coins are available through Apple In-App Purchase. Benefits, terms and prices are shown in the app and in Apple's purchase confirmation. Some features require sign-in or in-app coins. Microphone, camera, photo library and notification permissions are requested when needed. Declining a permission does not prevent use of features that do not depend on it. AI-generated content may be inaccurate; verify important information independently. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.yiyouyinli.com/seektruth/download/privacy.html
FEI AI
This AI assistant helps with daily conversations, content creation, and problem-solving. It offers personalized experiences and ensures privacy through encrypted conversations.
- Advanced conversational AI
- Content writing assistance
- Creative idea generation
- Personalized user experience
- Secure encrypted conversations
- Instant AI assistant service
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欢迎下载体验FEI AI人工助理 —— 一个革命性的智能AI应用,旨在通过高级对话界面提升您的生活和工作效率。FEI AI人工助理结合了最新的人工智能技术,为您提供广泛的个性化服务,从日常对话到专业内容创作,无所不能。 主要功能: 答题解疑: 无论是寻求知识、解答疑惑还是简单的聊天,FEI AI都能提供流畅、自然的对话体验。 写作助手: 无论是小说、周报、报告还是总结,FEI AI都能帮您高效生成原创内容,让写作变得轻而易举。 创作助理: 需要创意灵感?FEI AI能够帮助您构思和创作各类文本,包括营销内容、剧本、歌词等。 个性化体验: AI通过学习您的偏好和习惯,FEI AI能够提供更加个性化的服务。 随时随地: 无论您身处何地,只需打开FEI AI,即可享受即时的AI助理服务。 隐私保护: 我们重视您的隐私。所有对话都经过加密处理,确保您的信息安全。
Screenshots
Verdict
The clearest difference is in-app purchases: FEI AI at none against 上下求索's 5. FEI AI also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and monetization model 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. 上下求索 sells 5 in-app purchases, starting at $3.99 per month. FEI AI asks for nothing beyond the download.
上下求索 ships an update every 2 months, FEI AI every 5 weeks. Both last shipped on November 4, 2026.
| Parameter | 上下求索 | FEI AI |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 21 MB | 15 MB |
| Age rating | 12+ | 4+ |
| Developer | 亿有引力 | Kunchuang Technology (Shenzhen) Co., Ltd. |
Customer experience
上下求索
FEI AI
In-app purchases
上下求索
- AI Creation Monthly1 Month trial$3.991 Month
- 50 张图片加量包$0.99
- 50 Coins$0.99
- 170 Coins$3.99
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- 420 Coins$9.99
FEI AI
No in-app purchases









