RollGuard vs Domain Checker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RollGuard
This app scans your camera roll for sensitive documents like IDs, credit cards, and password screenshots. It works entirely on your device, even in Airplane Mode, and helps you manage private images before selling a device or sharing your phone.
- Scans for IDs, credit cards, and password screenshots
- On-device scanning, works offline
- Flags sensitive photos like WiFi labels
- Supports documents from 180 countries
- Option to keep, hide, or delete flagged images
- Free tier scans last 30 days completely
Read full descriptionHide full description
Find the sensitive photos hiding in your camera roll before someone else does. RollGuard scans your photos for passports, driver's licenses, national ID cards, payment cards — including card backs — screenshots of passwords and credentials, photographed WiFi and router labels, and other private images — entirely on your iPhone. It even scans in Airplane Mode — proof that nothing is uploaded, nothing is analyzed in the cloud. There's no account to create. Review what's flagged, then keep, hide, or delete — you're always the one who decides. RollGuard finds identity documents wherever they're hiding in your camera roll — passports, national ID cards, driving licenses, health and tax documents, residence permits — built and tested against real specimen documents from 180 countries and territories, in more than 30 languages. It doesn't just spot things that look like documents: passports and modern ID cards from any country are read and checked against their own machine-readable rules, and anything it can't verify is still flagged for you to decide. Passports from 100 MRZ-verified states have checked out against their own check digits in testing. Deep coverage for Australia, New Zealand, the UK, Ireland, Canada and the US, broad coverage across Europe — and growing. Before you hand over your work phone. IT prepping a device for return, or handing one back yourself — a fast scan flags anything private that shouldn't travel with the hardware. Before you sell or trade it in. Old passwords, screenshotted 2FA codes, a photo of your license from years ago — RollGuard finds what a factory reset alone won't help you notice before it's gone for good. Before you hand your phone to family. Kids playing games, family scrolling through photos — a quick pass first means nothing private turns up by accident. Before you travel. A lighter camera roll for border crossings and unfamiliar hands. Or just a spring clean. "What's actually in my thousands of photos?" — most people genuinely don't know. Find out what's hidden in there. RollGuard's free tier does more than a typical free trial: it runs a genuinely complete scan of your last 30 days — every category, every action, no artificial limits inside that window, re-scannable anytime — with the full review queue included: real thumbnails, tap to zoom, and keep, hide, or delete, all free. It also keeps going: working through the rest of your library on its own, showing you a real running count of what's flagged out there. Pro unlocks the review queue for everything beyond your last 30 days — without it, finding a specific older flagged photo yourself would mean scrolling through thousands of images by hand; Pro does that for you. One-time purchase, forever: no subscription, no recurring charges, ever. RollGuard also flags possibly sensitive images using Apple's own on-device detection, following your iPhone's Sensitive Content Warning setting — nothing about those images ever leaves your phone either. RollGuard never tells you your library is "safe." It flags what it finds for your review — you make every call.
Domain Checker
This app provides comprehensive domain diagnostics for developers and administrators. It offers quick analysis of DNS records, SSL certificates, HTTP responses, WHOIS information, and email security configurations from a single interface.
- DNS record lookup
- SSL certificate inspection
- HTTP response analysis
- WHOIS domain information
- Email security check
- All-in-one domain diagnostics
Read full descriptionHide full description
Domain Checker brings DNS, SSL/TLS, HTTPS, registration data, and email security checks into one local-first workspace for developers, sysadmins, and network engineers. LOCAL-FIRST ARCHITECTURE • 100% local capacity available: domains and checks stay on your device • Fast manual or automated refresh with offline backup and restore • Full access to standard diagnostics without cloud dependencies OPTIONAL CLOUD MONITORING • Automatic 24/7 background checks with instant outage and expiry alerts • Standard tier includes 50% cloud concurrency; PRO unlocks full 100% • Opt-in per domain anytime; zero automatic uploads CORE PROTOCOL DIAGNOSTICS • DNS: A, AAAA, CNAME, MX, TXT, NS, SOA, and CAA records • TLS: Certificates, full trust chains, expiration, SANs, and cipher suites • HTTPS: Status codes, redirect chains, latency, and reachability • WHOIS / RDAP: Registrars, status flags, and expiry timelines • Email Security: MX routing, SPF validation, and DMARC policies PRO ADVANCED SUITE (ONE-TIME PURCHASE) • Anycast DNS Propagation: Compare answers and TTLs across global public resolvers • DNSSEC Trust Chain: Verify DS, DNSKEY, and RRSIG signature validity • Lifecycle Planning: Sync expiration dates to Apple Calendar and Reminders • Security Hygiene: Detect dangling CNAME takeovers and wildcard DNS drifts • Full Cloud Concurrency: Maximize 100% cloud monitoring across all slots • Exportable PDF Reports: A4 diagnostic summaries and remediation priorities BUILT FOR iOS & iPadOS • Deep sapphire theme optimized for night-shift operations • Home Screen and Lock Screen widgets for at-a-glance fleet status • Localized in 9 languages Terms: https://domain.opshome.run/terms/ Privacy: https://domain.opshome.run/privacy/ EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is monetization model: Domain Checker at free against RollGuard's free with in-app purchases. Domain Checker also leads on iOS requirement (17.0 vs 26.0). On price, rating, ratings volume and update cadence 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. RollGuard sells 1 one-off in-app purchase and Domain Checker sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for RollGuard against 5.0 for Domain Checker. Both are backed by a comparable volume of ratings — 4 and 2 respectively.
RollGuard ships an update every 4 days, Domain Checker weekly. The most recent releases landed on October 25, 2026 and October 17, 2026 respectively.
| Parameter | RollGuard | Domain Checker |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (2 ratings) |
| Number of ratings | 4 — better | 2 |
| Update frequency | Every 4 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 55 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | David Smith | 超 张 |
In-app purchases
RollGuard
- RollGuard Pro$19.99
Domain Checker
- Domain Inspector Plus 50$0.99
- Domain Inspector Pro 100$1.99








