CertScope vs GuardPad
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CertScope
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CertScope allows you to monitor your certificates for expiries and other TLS related issues. Track and manage your TLS certificates with ease using CertScope. Features include: - Import local certificates (PEM/DER) - Import remote certificates (HTTPS/TLS) - Local alerts for when certificates are about to expire - Sync certificates across devices
GuardPad
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See what needs fixing on your site — and verify the improvement. GuardPad scans a website's security configuration from your iPhone or iPad, shows the three fixes that matter most, explains each one in plain language, and — after you change your server — rescans and tells you finding by finding what is resolved, still present, new, or could not be verified. Built for freelance developers and small web agencies who look after client sites. Try every PRO feature free for 3 days. No account. No analytics. Scans run on your device. UNDERSTAND • An A+ to F grade that summarises the checks performed — with a clear note that a grade is not a guarantee of security or a certification • 11 graded HTTP security headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, COOP, COEP, CORP, X-XSS-Protection, Server) • SSL/TLS certificate and protocol details, including post-quantum key exchange detection • Cookie flags (Secure, HttpOnly, SameSite, __Host- prefix) • Email security: SPF, DMARC, DKIM, MTA-STS and BIMI • Redirect chain, deprecated headers, security.txt, WAF/CDN fingerprints • OWASP Top 10:2025 and PCI DSS 4.0 header check mapping FIX • "Fix first" — your highest-impact issues at the top of the results • For every finding: what was observed, why it matters, and what to change • PRO: server config snippets for nginx, Apache, Express.js and Caddy VERIFY • Rescan to verify: each earlier finding is marked Resolved, Still present, New or Not verified • An unchanged overall grade never hides a finding you fixed • Incomplete scans (for example when the web server is unreachable) are never counted as fixed • PRO: PDF and Markdown reports that include what was verified since the previous scan FOLLOW UP (PRO) • Pin up to 5 domains; when iOS allows, GuardPad re-scans them in the background and notifies you only when a grade or header changes. Each pinned domain shows when it was last checked. Background re-scans are periodic, not continuous. Yearly covers all pinned domains; Lifetime covers 1. • Certificate expiry reminders 30/14/7/3/1 days before expiry • Grade trend charts, posture dashboard and scan comparison • Batch scan up to 50 URLs, CORS tester, DNS lookup with DNSSEC and CAA, full certificate chain • Shareable grade card and README badge NATIVE ON iOS • Share Extension — scan a URL straight from Safari • Siri & Shortcuts — "Scan Domain" and "Get Last Grade" • Home Screen and Lock Screen widgets for pinned domains • Optimised for iPhone and iPad FEEDBACK Spotted an incorrect result? Report it from the finding itself. You see the full message before anything is shared, and you send it yourself from Mail. PRIVACY No account, no analytics SDKs, no tracking, no third-party dependencies. Scan results stay on your device. GuardPad is a tool for checking the configuration of websites you own or are permitted to scan. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://olofpetterson.github.io/op-apps/guardpad/privacy.html?lang=en
Screenshots
Verdict
The clearest difference is in-app purchases: CertScope at none against GuardPad's 2. CertScope also leads on iOS requirement (17.0 vs 26.2). GuardPad's advantage is update cadence (every 5 weeks vs every 13 months). On price, 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
Both are free to download. GuardPad sells 2 in-app purchases, starting at $3.99 per year. CertScope asks for nothing beyond the download.
CertScope ships an update every 13 months, GuardPad every 5 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.
| Parameter | CertScope | GuardPad |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 13 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 4 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Automata Solutions Ltd. | Olof Petterson |
In-app purchases
CertScope
No in-app purchases
GuardPad
- GuardPad PRO Yearly14 Days trial$3.991 Year
- GuardPad PRO$9.99









