KeyVault Studio vs HeaderX
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
KeyVault Studio
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Azure Key Vault, without the portal: KeyVault Studio is the native client for Mac, iPhone and iPad. Your secrets, keys and certificates are well protected in Azure. Managing them just takes too many clicks in the portal. KeyVault Studio turns that into a real Apple app: fast, focused and secured with Face ID / Touch ID. Want to look around first? Demo mode opens the complete app with sample data, no Azure account needed. SECRETS āø Create, view, update and delete, every value behind Face ID / Touch ID āø Full version history with side-by-side comparison āø Content types for JSON, XML, connection strings and API keys āø The app warns before anything expires, with thresholds you choose āø Copied values clear themselves from the clipboard KEYS āø Create RSA, EC and HSM-backed keys āø Crypto Playground: encrypt, decrypt, sign, verify, wrap, unwrap āø Rotation policies and one-tap rotation āø Import from JSON Web Key CERTIFICATES āø Issue self-signed and CA-signed certificates āø Import PFX/P12 and PEM, export the public certificate or the private key āø Manage policies, issuers, contacts and pending operations NETWORKING āø Configure the vault firewall, VNet rules and private endpoints āø Manage private DNS zones, record sets and VNet links āø Approve or reject private endpoint connections VAULTS āø Find vaults across all your Subscriptions in seconds āø Create a new vault with a guided wizard āø Backup and restore, AES-GCM encrypted if you want āø Recover or purge soft-deleted vaults and items AI ASSISTANT āø Ask questions about your own infrastructure: what expires soon, what is disabled āø Runs fully on device if you want: Apple Intelligence or Gemma, no cloud required āø Or bring your own key: Claude, OpenAI, Gemini, plus Ollama on your own network āø Naming suggestions per Cloud Adoption Framework, subnet and address space planning āø The assistant sees names and metadata, never secret values āø A visible token budget keeps API costs under control BUILT FOR APPLE PLATFORMS āø Mac, iPhone and iPad with the same feature set, tuned per size class āø Lightning-fast search across every vault and item, right on the device āø Several accounts side by side: Azure Commercial, US Government and China clouds āø No middleman servers: the app talks directly to Azure with your Microsoft Entra ID sign-in Bring your own app registration or use the built-in one. Your secrets never leave your device except to Azure.
HeaderX
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HeaderX injects custom HTTP request headers into your Safari browsing session ā the essential companion for web developers, API testers, and QA engineers. Point HeaderX at your development environment, define your headers once, and flip them on whenever you need them. No proxy setup, no configuration files, no leaving the browser. DEFINE HEADERS AS JSON Describe your headers in a simple JSON editor ā paste an entire set at once: {"X-Debug-Mode": "enabled", "Authorization": "Bearer dev-token"} Or use the array format to keep headers saved but individually switched off. TWO VIEWS, ONE TOGGLE Edit as raw JSON or flip to List view, where every header gets its own checkbox. The master toggle in the corner turns everything on or off instantly ā your configuration stays saved either way. REUSABLE PROFILES Save named header sets ā one per project, environment, or test scenario ā and switch between them in two clicks. FEATURES ⢠One-tap master toggle ⢠JSON editor and checkbox list views ⢠Per-header enable/disable ⢠Named profiles for quick switching ⢠Settings persist across browser restarts ⢠Works in Private Browsing (optional) GOOD TO KNOW Standard header names (Authorization, Accept-Language, User-Agent, and other HTTP-spec headers) are applied to all requests through Safari's native rule engine. Custom header names (X-My-Header and similar) are applied to fetch and XHR requests made by web pages ā a Safari platform constraint on custom names in network rules. For typical API-debugging workflows, this covers exactly the requests you care about. Headers apply to every site while the toggle is on ā remember to switch off when you're done testing, especially with authentication headers. PRIVACY FIRST Everything stays on your device. HeaderX collects no data, phones home to no one, and contains no analytics. What you configure is nobody's business but yours.
Screenshots
Verdict
The clearest difference is update cadence: KeyVault Studio at daily against HeaderX's every 8 days. HeaderX's advantage is iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
KeyVault Studio ships an update daily, HeaderX every 8 days. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.
| Parameter | KeyVault Studio | HeaderX |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily ā better | Every 8 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod, Mac ā better |
| Requires iOS | 26.0 | 15.0 ā better |
| Further details ā not scored | ||
| Size | 35 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Stephan Bail | Gyuman Kim |
In-app purchases
KeyVault Studio
No in-app purchases
HeaderX
No in-app purchases









