Domain Check vs CiS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Domain Check
Instantly retrieve detailed WHOIS information for any website using real WHOIS servers. Check domain availability, view comprehensive details, and maintain a history of your queries. Supports all top-level domains.
- Real WHOIS server queries
- Unlimited queries
- All TLD support
- Domain availability check
- Detailed domain information
- Query history
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Professional Domain Intelligence Domain Check is a focused lookup and monitoring tool for people who work with domains every day. Check availability, ownership signals, DNS, SSL, email security, blacklist status, expiry risk, and portfolio history from one clean iPhone and iPad app. Use it for domain research, brand protection, client audits, acquisition checks, technical reviews, expiry tracking, and ongoing watchlist monitoring. Key Features - Single domain lookup for fast checks - Batch checking for pasted, imported, or saved domain lists - WHOIS availability status: Available, Registered, or Unclear - Confidence level and human-readable result explanation - Registrar and expiry details when available - WHOIS privacy and redaction signal detection - DNS-over-HTTPS lookup with Cloudflare to Google fallback - DNS records for A, AAAA, MX, NS, TXT, and CNAME - Nameserver change detection between saved checks - SSL validation using the system HTTPS trust check - Email security review for MX, SPF, DMARC, DMARC policy, and DKIM hints - DNSBL blacklist checks for discovered IPv4 records - Domain health score, risk labels, freshness warnings, and expiry badges - Domain suggestions, typo variants, and brand-protection variants - Saved watchlist for favorite and alerted domains - Expiry dashboard for important domains - Grouped batch history with expandable batch runs - Searchable history with filters for status, saved domains, expiry, alerts, blacklist, and SSL issues - Compact or detailed history row density - Multi-select history actions for compare, export, favorite, tag, recheck, and delete - Side-by-side domain comparison with highlighted technical values - Per-domain notes and tags - Saved reusable batch lists with searchable picker - Batch templates for startup names, brand protection, and client-domain lists - Batch pause, resume, stop, progress overlay, and rate-limit warning - Native PDF export for single results and full history - CSV export for history, notes, and tags - CSV and text import for domain lists - Copy actions for domain, summary, WHOIS, DNS records, and key result values - Configurable preferred registrar URL - Local expiry reminders and availability alerts - iCloud key-value mirroring when available - App Shortcut and widget target support - Clean cyber-tech dark interface built for iPhone and iPad Domain Check keeps domain intelligence practical: quick enough for one lookup, structured enough for professional batch workflows.
CiS
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The app provides you with information on; - Production date - Unique Hose ID - Hose history if applicable - Coupling part number - Hose working pressure - Date and person who performed latest pressure test - Recommended date for re-pressure test Note - this technology cannot detect damages or other injuries on hose kit. Working with high-pressure hydraulics is associated with a danger to your life. Therefore, it is vitally important to eliminate risk as far as possible. When using high-pressure products from CEJN, you can rest assured that you have made a safe choice. With CiS you take control of your hose kits and your safety, together with CEJN’s 40 years of experience you are as safe as can be. NFC: Wireless data transfer that detects and then enables technology in close proximity to communicate without the need for an internet connection. An NFC chip operates as one part of a wireless link. Once it has been activated by another chip, small amounts of data between the two devices can be transferred when held a few centimeters from each other.
Screenshots
Verdict
The clearest difference is in-app purchases: CiS at none against Domain Check's 1. CiS also leads on update cadence (every 2 months vs every 14 months) and iOS requirement (15.0 vs 17.0). 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. Domain Check sells 1 one-off in-app purchase. CiS asks for nothing beyond the download.
Domain Check ships an update every 14 months, CiS every 2 months. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.
| Parameter | Domain Check | CiS |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 14 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Geekme | CEJN |
In-app purchases
Domain Check
- Remove Advertising$0.99
CiS
No in-app purchases









