API Signal vs API Guard
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
API Signal
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API Signal is an API monitoring service built for developers who care about visibility, authentication, and operational clarity. Register API endpoints, monitor HTTP status codes and JSON responses, and review recent failures from a clean dashboard designed for daily development and operations work. API Signal supports GitHub authentication, making it easy for developers to sign in with an identity they already use. Your monitoring data is synced across web and mobile apps, so you can check endpoint status and failure history from the environment that fits your workflow. The service is designed with a security-conscious and distributed architecture in mind. API checks, user access, logs, and notifications are handled through separated operational layers, helping keep monitoring stable and predictable as usage grows. Key features: GitHub sign-in for developer-friendly access Cross-platform data sync across web and mobile apps HTTP status monitoring for registered API endpoints JSON response validation for practical API health checks Failure logs focused on recent problems and debugging context Notification support for operational awareness API Signal is not just a simple uptime checker. It is a focused monitoring tool for developers who want to see API failures early, keep operational signals organized, and manage checks from multiple platforms without losing context. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
API Guard
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Octoshield watches your code repositories for exposed API credentials, then helps you respond before a leaked key turns into a security incident or runaway cloud bill. Built for developers, indie hackers and small teams, Octoshield connects to your source code workspace, lets you choose the repositories you want to monitor, and scans pushed commits for high-risk secrets such as OpenAI, Stripe and AWS keys. Why developers use Octoshield: - Monitor selected public and private repositories - Scan new pushes for exposed credentials and risky secrets - Receive critical leak alerts when a matching key is found - Review commit history and alert status from your iPhone - Track billing velocity signals for connected provider credentials - Keep credential storage optional and manage saved keys in-app - Use the free plan for one repository or upgrade for unlimited repository monitoring A single accidental commit can be enough for automated scanners to find and exploit a production key. Octoshield gives you a focused mobile command center for the moments when speed matters: see what was exposed, where it happened, and what needs attention next. Octoshield is designed for practical developer security, not noisy dashboards. Connect your code workspace, choose your repositories, and keep an eye on the credentials that protect your products, customers and cloud budget. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings. Terms & Conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://devflowtarik.vercel.app/privacy/octoshield
Screenshots
Verdict
The clearest difference is iOS requirement: API Signal at 16.4 against API Guard's 18.6. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. API Signal sells 2 in-app purchases, starting at $5.99 per month and API Guard sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | API Signal | API Guard |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 16.4 โ better | 18.6 |
| Further details โ not scored | ||
| Size | 58 MB | 41 MB |
| Age rating | 17+ | 4+ |
| Developer | Masakatsu Aida | Fuat Tarik ISLAM |
In-app purchases
API Signal
- Starter Monthly$5.991 Month
- Standard Monthly1 Month trial$39.991 Month
API Guard
- Monthly$2.991 Month
- Yearly$24.991 Year








