Comparison

小黑 OmniBox vs Guyun

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

Head to head
About

小黑 OmniBox

This AI-powered tool helps manage fragmented information by collecting, organizing, and retrieving your knowledge. It offers features like whole-web saving, multi-format uploads, and AI-driven Q&A based on your personal knowledge base. Collaborate with others and access your information across multiple devices.

Highlights
  • AI-powered knowledge management
  • Whole-web and multi-format collection
  • AI Q&A on private knowledge base
  • Intelligent semantic search
  • Multi-device synchronization
  • Team collaboration space
Features
Read full description

【Product Introduction】 In the era of information explosion, have you ever been caught in the dilemma of "endless collecting, never processing"? Xiaohei OmniBox is an AI-powered one-stop knowledge management tool, dedicated to breaking the predicament of information fragmentation and building a complete closed loop for you from collection, organization, application to sharing. We only want to do three things: simplicity, simplicity, and simplicity above all. 【App Features】 The App is still in a very early stage, currently supporting cloud file viewing, knowledge base Q&A, and task completion notifications. 【Web Version Features】 1. Seamless Multi-source Collection, All Content Storable Whole-web Collection: Save the full text of web pages with one click via mobile link sharing or browser extensions, which are automatically parsed into editable documents. Multi-format Upload: Upload local documents, images, audio and video files; AI automatically transcribes and parses them to realize unified management of local and online resources. WeChat Assistant: Instantly save text, voice, video and links once sent, achieving seamless connection between social scenarios and knowledge management. 2. In-depth AI-driven, Knowledge at Your Fingertips Intelligent Automatic Organization: AI automatically extracts abstracts and adds tags to content, putting an end to the trouble of manual classification once and for all. AI Q&A Based on Private Knowledge Base: No more generic answers. OmniBox can reference content from your personal library for creation and Q&A, ensuring accurate and reliable information sources—it knows you better than online search. Intelligent Semantic Search: Forgot the keywords? No problem. It supports fuzzy search and semantic understanding, allowing you to retrieve relevant documents by inputting fragmented memories. 3. Collaboration & Sharing, Empower Knowledge Flow Multi-device Synchronization: Real-time data synchronization across mobile terminals, web terminals and other platforms. Flexible Sharing: Support creating private/public sharing links, with customizable validity periods and passwords to ensure information security. Team Space: Invite members to join the space to realize collaborative document creation and efficient teamwork. 4. Geek-friendly, Infinite Possibilities iOS Shortcuts: Adapted to the Apple ecosystem, quickly initiate recording, text or document collection via shortcuts. Open API: Support developers to customize automated workflows according to their own scenarios. 【Why Choose OmniBox?】 Different from traditional note-taking apps, Xiaohei OmniBox is more than just a storage container—it is your second brain. Powered by leading AI technology, it can understand your documents, answer your questions, and make every piece of fragmented information play its role in your knowledge system.

About

Guyun

Features
Read full description

Guyun keeps your files in object storage you own: Alibaba Cloud OSS, Tencent Cloud COS, Qiniu, Upyun, Backblaze B2, Cloudflare R2, MinIO, or any S3-compatible service. No account system, no server of ours, no telemetry — files go straight from this device to your own bucket. The app provides no cloud space and takes no cut of your storage. ■ Why "your own storage" Most cloud drives keep your files on the vendor's servers, which decides the speed, the capacity and the price. Guyun is the other way round: the bucket, the keys and the bill are yours, and your provider bills storage and traffic at its published rates. Guyun never bills you for either. ■ What it does · Browse and manage: grid or list, sorted by name, date or size; whole-bucket search, not just the folder you are in; new folders, rename, copy, move · Upload and download: from Files or Photos, or a whole folder at once, through a queue you can pause and resume; downloads go to a folder or to Photos · iOS background transfers: files up to 200 MB go to the system as one request and finish even if you switch apps or lock the screen; larger files continue with the background time granted · Progress anywhere: a small pill shows how many transfers are running and how far along they are · Usage ledger: how much Guyun itself moved — today, this month and last month, by bucket and by device, with cellular counted separately on this device. Only this app's transfers, never your provider's bill · Storage size: measure a bucket to get its file count and total size; a large bucket can be finished over several taps, and the result stays on this device · Archive files are marked; the app asks before a restore (how long, billed by your provider, cannot be cancelled), and afterwards preview and download work as usual · Preview: zoom images, play video while it is still loading, open PDF and text · Trash: a delete moves the item to the bucket's own trash folder, where it can be restored or removed for good · Several devices: the same bucket on iPhone, iPad and Mac; hand a configuration over by scanning a code instead of typing keys · Make it yours: an icon per storage, a sidebar you can reorder, and storages you do not need hidden away (back in Settings → Storage service) · Locks: Face ID / Touch ID for the whole app or one storage; transfers keep running while locked, and turning a lock off always asks for authentication first ■ Privacy, in plain terms · No account and no server of ours: the app talks to the storage address you enter, and to nothing else · Access keys live in this device's Keychain, never uploaded to us and never synced through iCloud · Keys leave the device only when you deliberately hand a storage to another device: the handoff code contains them in plain text, so show it only to your own device and treat it like a password · No usage data collected; no third-party SDKs, no analytics, no ads · Face ID / Touch ID is handled by the system, and that data never leaves your device · Both locks are screen gates, not encryption: they keep out someone who picks up your unlocked device ■ Try it without any storage A local demo storage is built in: sample photos, a video and a PDF are generated on device. No account, no keys, no network — browse, preview, upload, rename, copy, move, delete and restore, all without a single credential. ■ What you need A bucket, and a key pair allowed to use only that bucket. Pick the service and place and the app fills in the endpoint and region; you enter the bucket name and the keys (Tencent COS also asks for the APPID ending its bucket names). Guides for every service are on our website, including an Alibaba Cloud template that creates the bucket, the RAM user and the keys at once. ■ Languages Simplified Chinese, Traditional Chinese and English (switch in Settings; applies next time you open the app). Support: contact@airdiode.com Privacy policy: https://www.godar.cn/Guyun-privacy-policy.html

Screenshots

小黑 OmniBox4 screens
Guyun4 screens

Verdict

The call

The clearest difference is in-app purchases: Guyun at none against 小黑 OmniBox's 10. 小黑 OmniBox's advantage is iOS requirement (15.1 vs 17.0). On price, update cadence, ads 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. 小黑 OmniBox sells 7 one-off in-app purchases. Guyun asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.

Scorecard2 real differences · 7 level
小黑 OmniBox versus Guyun: the parameters behind the verdict, then further details
Parameter小黑 OmniBoxGuyun
PriceFreeFree
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS15.1 — better17.0
Further details — not scored
Size81 MB4 MB
Age rating4+4+
DeveloperHangzhou Xiaohei Intelligent Technology Co. Ltd晖 江

In-app purchases

7 purchases

小黑 OmniBox

One-time7
  • Add-ons3 variants$0.99
  • Upgrade$0.99
  • Upgrade$1.99
Show 4 more
  • Upgrade$5.99
  • Upgrade$8.99
  • Upgrade2 variants$14.99
  • Upgrade$59.99
None

Guyun

No in-app purchases

Questions

Is 小黑 OmniBox free?
小黑 OmniBox is free to download, with in-app purchases available.
Is Guyun free?
Guyun is free to download, with no in-app purchases.
Do 小黑 OmniBox or Guyun have ads?
Neither 小黑 OmniBox nor Guyun shows ads.
Which is updated more often, 小黑 OmniBox or Guyun?
小黑 OmniBox ships an update weekly, and Guyun weekly. Most recently, 小黑 OmniBox was updated on November 9, 2026 and Guyun on November 10, 2026.

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