Comparison

1chat vs 上下求索

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

Head to head
About

1chat

This AI assistant operates entirely offline, prioritizing your privacy and security. It includes a built-in language model, requiring no internet connection or user registration to function. Manage multiple conversations and enjoy immediate use.

Highlights
  • Fully offline operation
  • No internet connection required
  • No login or registration
  • Built-in Qwen3 model
  • Multiple conversation management
  • Optimized for Apple chips
Features
Read full description

1Chat is a fully offline, locally running large language model AI assistant. 1Chat emphasizes privacy and security, requiring no internet connection or permissions. It runs completely locally with an integrated model, ready to use right out of the box. Features: • No internet connection required, no login or registration • Fully offline, ensuring privacy and security • Built-in Qwen3 model, ready to use immediately • Supports multiple conversation management • Optimized for Apple chips 1Chat is based on the open-source project fullmoon-ios, with custom development and integration of the Qwen3-1.7B-4bit-DWQ-053125 model. Open source:https://github.com/OJZen/1chat For any feedback or suggestions, you can email: ojunedev@gmail.com

About

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.

Highlights
  • Voice, text, and image input
  • Follow-up questions
  • Extended reading content
  • Bite-sized Knowledge module
  • Time Gallery photo generation
  • Task list and result page
Features
Read full description

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

Screenshots

1chat2 screens
上下求索4 screens

Verdict

The call

The clearest difference is review sentiment: 1chat at 100% against 上下求索's 0%. 1chat also leads on in-app purchases (none vs 5). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 上下求索 sells 5 in-app purchases, starting at $3.99 per month. 1chat asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on November 4, 2026.

Scorecard2 real differences · 8 level
1chat versus 上下求索: the parameters behind the verdict, then further details
Parameter1chat上下求索
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings2 — better—
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size955 MB21 MB
Age rating4+12+
Developer高均 欧亿有引力

Customer experience

1chat

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

上下求索

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

1chat

No in-app purchases

5 purchases

上下求索

Subscriptions1
  • AI Creation Monthly1 Month trial$3.991 Month
One-time4
  • 50 张图片加量包$0.99
  • 50 Coins$0.99
  • 170 Coins$3.99
Show 1 more
  • 420 Coins$9.99

Questions

Is 1chat free?
1chat is free to download, with no in-app purchases.
Is 上下求索 free?
上下求索 is free to download, with in-app purchases available.
Do 1chat or 上下求索 have ads?
Neither 1chat nor 上下求索 shows ads.
Which is updated more often, 1chat or 上下求索?
1chat ships an update every 2 months, and 上下求索 every 2 months. Most recently, 1chat was updated on November 4, 2026 and 上下求索 on November 4, 2026.

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