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Skyflow suits companies building AI products that need a governed record of every sensitive value. Hushbridge suits people and teams who want protection on their own device.
Vault
Skyflow is a data privacy vault. Its LLM Privacy Vault sits between your app and the model. It swaps sensitive values for tokens, keeps the originals in the vault, and returns real values to users who are allowed to see them. It is a building block for engineering teams in fintech, retail, travel and healthcare. It is a different kind of product from Hushbridge rather than a direct alternative.
Local protection layer
Hushbridge does the swap on your device. It replaces details with placeholders such as [PERSON_1] and shows you what the AI will get. After you review it, the placeholder version goes to the AI. Real values come back on your device, and the swap table stays there. It fits professionals using AI sites, and developers who want the step in their own process.
| Question | Skyflow | Hushbridge |
|---|---|---|
| What it protects | Sensitive data flowing into and out of AI apps and agents, across training, fine tuning, RAG and inference. | Names, identifiers, addresses, secrets and anything on your own "always protect" list, in text you type or paste. |
| Where processing happens | In Skyflow’s service. Your app or gateway calls its detection APIs over HTTPS. | On your device. |
| Where original values are stored | In the Skyflow vault, which keeps the plain values. The pages checked do not say where the vault is hosted. | In a swap table that stays on your device. |
| Restore in replies | Yes, on the server side. Tokens are turned back into real values as the response returns, for authorized users only. | Yes. Real values return on your device in supported replies. |
| How you use it | Developers connect it through Skyflow APIs, SDKs or Skyflow Connections, or through a Kong Gateway plugin. | A browser extension for ChatGPT, Claude, Gemini, Copilot and Perplexity, a web workspace, or the SDK and local proxy in your own code. |
| Deployment | API-first, sold through a demo and sales process. | The extension installs manually in Chrome with "Load unpacked". It is not in the Chrome Web Store yet. Workspace and billing run on tightlipai.com during the move to the new name. |
| Pricing | Not published. The pricing and product pages offer only a demo and a sales contact. | USD 0.05 per credit. Top-ups from USD 100. USD 20 free credit on sign-up (to be reconfirmed before launch). One credit covers each started block of 8,000 tokens. |
The Kong plugin page says the model provider only sees tokens and the end user sees real values. That is the vendor and partner description. We did not test it.