DNS Security vs SSL Certificate Checker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DNS Security
Enhance your online privacy by encrypting your DNS queries using DoH and DoT protocols. Choose your preferred DNS provider and manage settings easily without needing a VPN. Offers both free and advanced Pro features for comprehensive control.
- Encrypt DNS queries with DoH/DoT
- Choose built-in DNS profiles
- Manage DNS settings easily
- Apply settings to Wi-Fi/cellular
- Create custom DoH/DoT profiles (Pro)
- Compare DNS response times (Pro)
Read full descriptionHide full description
Make your DNS private. Start with DNS Security. DNS Security helps protect your privacy by encrypting DNS queries with DNS over HTTPS (DoH) and DNS over TLS (DoT). Choose a provider, enable your DNS configuration, and manage your settings in one place—without routing your internet traffic through a VPN. WHY ENCRYPT YOUR DNS? HTTPS protects the content exchanged with websites, but traditional DNS lookups may still be unencrypted. These lookups translate domain names into IP addresses and can reveal the domains your device requests. Encrypted DNS helps protect queries between your device and your chosen DNS provider from eavesdropping and tampering. Your provider still handles those queries, so choose one whose privacy practices you trust. EVERYDAY DNS CONTROL • Use DNS over HTTPS or DNS over TLS. • Choose built-in profiles for Cloudflare and Google. • Enable or disable your DNS configuration from the app. • Choose whether DNS settings apply on Wi-Fi, cellular, or both. • Check DNS protocol and provider details in the Status tab. DNS SECURITY OR DNS SECURITY PRO? DNS Security includes the everyday DNS controls above at no cost. It offers an optional Pro in-app purchase for the advanced features below. DNS Security Pro is the paid edition. It includes the same everyday DNS controls plus these advanced features from the start: PRO FEATURES • Create custom DoH and DoT profiles. • Use built-in AdGuard profiles and download profile updates. • Skip encrypted DNS for some domains or networks. • Sync custom DNS profiles and optional Wi-Fi rules with iCloud. • Enable or disable DNS for specific Wi-Fi SSIDs. • Switch profiles with Shortcuts and URL schemes. • Compare DNS profile response times with the built-in speed test. DESIGNED AROUND PRIVACY DNS Security manages your device's DNS configuration and does not collect personal information. DNS requests are handled by your selected provider under that provider's privacy policy. Encrypted DNS protects DNS queries; it does not make all browsing anonymous. Blocking malicious domains depends on the provider and profile you choose. AUTOMATE YOUR DNS With Pro, use Shortcuts or a compatible app to open a switch URL and select a DNS profile with your preferred network settings. Example: select google-DOH for Wi-Fi, with cellular disabled: dnsapp://switch?config=google-DOH&enableOnWifi=true&enableOnCellular=false Use the scheme for your installed app: • DNS Security Pro: dnssecuritypro:// • DNS Security: dnssecurity:// • Shared scheme: dnsapp:// Replace dnsapp in the example with your app's scheme. The requested profile must already exist in the app. Initial activation may require selecting DNS Security in iOS Settings.
SSL Certificate Checker
Monitor the health of SSL/TLS certificates for your websites and services. Instantly check single targets or scan your entire list to identify expiring or expired certificates and review TLS configurations.
- Monitor SSL/TLS certificate health
- Check expiry date and days left
- Classify certificate status (OK, Expiring, Expired, Failed)
- View issuer, subject, and SAN details
- Inspect negotiated TLS protocol and cipher suite
- Perform single target or batch scans
- Store targets and results locally
Read full descriptionHide full description
SSL Certificate Checker helps you monitor SSL/TLS certificate health for the websites and services you care about. Add one or more targets (hostname + port, default 443), run a check instantly, or scan your whole list in one tap. The app is designed for a quick daily workflow: open, scan, review risk, and act. What you can check: - Expiry date and days left - Status classification: OK, Expiring, Expired, Failed - Issuer and subject - SAN (Subject Alternative Name) - Serial number and signature details - SHA-256 certificate fingerprint - SHA-256 public key fingerprint - Negotiated TLS protocol and cipher suite Key workflows: - Single target check for immediate troubleshooting - Full list scan for regular maintenance - Saved targets and latest results stored locally on device - Optional periodic background checks (can be turned on/off) Built for practical certificate operations: - Quickly identify certificates close to expiration - Compare protocol/cipher negotiation outcomes - Keep a simple watchlist for internal or public endpoints - Generate and review report-style outputs inside the app Security perspective for connected-device teams: - Includes TLS protocol and cipher suite visibility to support baseline security reviews - Helps teams spot weak or unexpected negotiated ciphers during routine checks - Useful as an evidence aid for internal security discussions and release readiness - Designed as a practical checker, not a complete legal/compliance assessment tool Regulatory context note: - In the EU, RED cybersecurity delegated requirements under Directive 2014/53/EU Article 3(3)(d)(e)(f) apply from August 1, 2025 for covered products - This app can support early HTTPS/TLS posture checks, but it does not certify compliance with RED-DA, EN 18031, or any other regulation/standard on its own Privacy and control: - No account is required to start checking - Targets and recent check results are kept locally for your routine usage - Privacy policy and terms are available from within the app Current release focus: - Core SSL/TLS checking flow and result parsing are available - Batch checking and retry flow are available - iOS background checks are best-effort (system-scheduled) - Multilingual UI foundation is integrated; some languages are still being refined This app is suitable for developers, operators, site owners, and anyone who wants a simple way to track certificate validity and TLS configuration from a mobile device.
Screenshots
Verdict
The clearest difference is in-app purchases: SSL Certificate Checker at none against DNS Security's 1. SSL Certificate Checker also leads on review sentiment (100% vs 67%) and rating (5.0 vs 4.8). DNS Security's advantage is update cadence (every 2 days vs monthly) and ratings volume (72 vs 2). 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. DNS Security sells 1 one-off in-app purchase. SSL Certificate Checker asks for nothing beyond the download.
SSL Certificate Checker holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: DNS Security has 72 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 67% of DNS Security's written reviews are positive against 100% of SSL Certificate Checker's.
DNS Security ships an update every 2 days, SSL Certificate Checker monthly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | DNS Security | SSL Certificate Checker |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (72 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 66.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 72 — better | 2 |
| Update frequency | Every 2 days — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | CHUNG-HO LEE | Yuan-Yi Chang |
Customer experience
DNS Security
SSL Certificate Checker
In-app purchases
DNS Security
- Unlock Pro features$1.99
SSL Certificate Checker
No in-app purchases
Questions
Is DNS Security free?
Is SSL Certificate Checker free?
Which has better reviews, DNS Security or SSL Certificate Checker?
Do DNS Security or SSL Certificate Checker have ads?
Which is updated more often, DNS Security or SSL Certificate Checker?
Other comparisons















