Comparison

ProbePad vs Relay

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

Head to head
About

ProbePad

Features
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ProbePad is the API client Postman never built for iPhone and iPad — native, private, and fast enough to ship a production fix from the couch. New in v1.6: ProbePad watches your endpoints while you sleep — background health checks with failure alerts, status widgets on your Home and Lock Screen, Spotlight search, and one-tap cancellation. ENDPOINT MONITORING (PRO) • Mark any saved request as watched and ProbePad runs it in the background • A notification when a watched endpoint starts failing, with the request name and the status it returned • A cooldown per endpoint, so a flapping service does not alert you over and over • iOS decides when background work is granted. ProbePad tells you when the last check happened, never when the next one will • If Background App Refresh is off, the app says so plainly WIDGETS — HOME SCREEN AND LOCK SCREEN • Last Request — your most recent run, with its status and when it ran • Request Status — a saved request's last status and response time. Also a Lock Screen circular widget • Endpoint Monitor (PRO) — a watched endpoint's last result, and when it was checked • A widget sees a summary only: request name, host, status, timing. Never a header, a body or a token SPOTLIGHT, SIRI AND SHORTCUTS • Request names and hosts are searchable from the Home Screen — tap a result to open it • Indexing is a switch in Settings, and secrets and environment values are never indexed • "Run Saved Request" and "Send HTTP Request" App Intents for Siri, the Shortcuts app and Focus automations • The Shortcuts result carries the request, the status and the timing CANCEL A RUNNING REQUEST • One tap stops an in-flight request and tears the connection down • The cancelled attempt is written to history, not lost ON CALL, INSIDE THE RESPONSE • Find in the response body, with a live match count and wrapping next/previous — even on truncated bodies • Copy a single header value without selecting text • Replay a returned Set-Cookie as a request header, in one tap • History rows are tagged with the environment they ran against, and a cross-environment diff warns you first BUILD & EXECUTE • GET, POST, PUT, PATCH, DELETE with full header, query and body control • Multipart/form-data with file upload • JSON, raw and form-encoded bodies • Per-request timeout (1–300 s) ORGANIZE • Collections — group related requests, colour-coded (free) • Environments and variables — switch between dev, staging and production (PRO) • Secrets Vault — API keys in the iOS Keychain, Face ID or Touch ID (PRO) INSPECT • Syntax-highlighted JSON tree • Response history with side-by-side diff (free) • Status, headers, timing and byte count AUTHENTICATION • Bearer token, Basic, API key (header or query) • OAuth 2.0 authorization code with PKCE, and client credentials (PRO) • Automatic token refresh, Keychain storage • Provider presets: Google, GitHub, Azure AD, Auth0 • JWT inspection GRAPHQL & WEBSOCKET (PRO) • GraphQL editor with schema introspection, variables and named operations • ws:// and wss:// sessions with text and binary frames, a full transcript and auto-reconnect IMPORT • cURL — paste a command and get a request. Free, and staying free • Postman v2.1 collections, OpenAPI 3.0 and Swagger 2.0 (PRO) PROBEPAD PRO Lifetime is a one-time purchase (US$19.99). Yearly is US$9.99 per year after a seven-day free trial and renews automatically until you cancel it in your Apple Account settings. Prices for your region are shown in the app. Bought ProbePad before v1.6? You keep PRO forever, at no charge, including everything in this release — nothing to buy, nothing to do. PRIVACY-FIRST • All your data stays on your device • No analytics, no third-party SDKs, no advertising identifier, no telemetry • PrivacyInfo.xcprivacy declares everything the app touches • Secrets live in the iOS Keychain, never in plain text Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Relay

Features
Read full description

Relay is a modern API client and REST client built for iPhone and iPad. Send HTTP requests, inspect responses, and manage API workflows from anywhere. What you can do with Relay: - Send requests with common HTTP methods (GET, POST, PUT, PATCH, DELETE, and more) - Build requests with query parameters, headers, body, and auth - Test Bearer Token, Basic Auth, and API Key configurations - Inspect response body, headers, and request timing details - Validate and format JSON for faster debugging - Import cURL commands to quickly recreate terminal requests - Organize endpoints in collections and folders - Use environments and variables to switch between dev, staging, and production - Re-run requests from history to speed up testing Relay Pro unlocks advanced workflow and organization features for power users. You can start testing APIs immediately, with no account required. If you build, test, or debug APIs, Relay is the HTTP client that fits your iPhone and iPad workflow. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ProbePad4 screens
Relay4 screens

Verdict

The call

The clearest difference is iOS requirement: ProbePad at 17.0 against Relay's 26.2. On price, ads, in-app purchases 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. ProbePad sells 4 in-app purchases, starting at $9.99 per year and Relay sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 5 level
ProbePad versus Relay: the parameters behind the verdict, then further details
ParameterProbePadRelay
PriceFreeFree
Update frequencyWeekly—
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better26.2
Further details — not scored
Size8 MB5 MB
Age rating4+4+
DeveloperOlof PettersonCederic Schmid

In-app purchases

4 purchases

ProbePad

Subscriptions1
  • ProbePad PRO Yearly7 Days trial$9.991 Year
One-time3
  • ProbePad PRO$5.99
  • ProbePad PRO Lifetime (Launch)$9.99
  • ProbePad PRO Lifetime$19.99
3 purchases

Relay

Subscriptions2
  • Relay Pro Monthly$3.991 Month
  • Relay Pro Yearly3 Days trial$8.991 Year
One-time1
  • Relay Pro Lifetime$17.99

Questions

Is ProbePad free?
ProbePad is free to download, with in-app purchases available.
Is Relay free?
Relay is free to download, with in-app purchases available.
Do ProbePad or Relay have ads?
Neither ProbePad nor Relay shows ads.

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