System Rx vs DomainDetails
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
System Rx
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System Rx is the professional-grade diagnostic tool designed for power users who need exact hardware transparency. Monitor your system's vitals across iOS, and iPadOS with precise hardware identification and real-time telemetry. Key Features: Precise Hardware Identity: Accurate identification of your device model, chip (including M4, A18 Pro, and A17 Pro), and technical specs. CPU & RAM Monitoring: Monitor processor load and memory footprint in real-time with technical-grade accuracy. System Thermal States: Keep an eye on your device's temperature and thermal throttling status. Storage & Battery: Detailed insights into SSD health, read/write rates, and battery cycles. Privacy First: No telemetry leaves your device. All data is processed locally.
DomainDetails
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DomainDetails is a fast domain research and monitoring app for checking important domain information from your phone. Look up RDAP and WHOIS details, review registrar and expiry information, inspect DNS and SSL data, and open related web history when available. Save useful lookups locally, sync recent lookups when signed in, and monitor important domains with DomainDetails Pro. What you can do: - Look up domain ownership, registry, registrar, expiry, status, nameserver, DNSSEC, DNS, and SSL information - Save domain research on your device - Sync recent lookups and monitoring data with your DomainDetails account - Monitor domains for important changes with Pro - Review domain history and visual diffs where available - Share URLs into the app to capture and inspect domains quickly DomainDetails uses authoritative domain data sources where possible, including registry RDAP endpoints, public DNS, SSL certificate data, and public web archive availability. Domain data can be incomplete or delayed depending on registry, registrar, and public data-source availability, so critical decisions should always be verified with the authoritative provider. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: System Rx at none against DomainDetails's 2. System Rx also leads on device support (3 vs 1). DomainDetails's advantage is update cadence (daily vs every 3 weeks). On price, ads and iOS requirement 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. DomainDetails sells 2 in-app purchases, starting at $9.99 per month. System Rx asks for nothing beyond the download.
System Rx ships an update every 3 weeks, DomainDetails daily. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.
| Parameter | System Rx | DomainDetails |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Daily โ better |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad, Mac โ better | iPhone |
| Requires iOS | 17.0 | 16.4 โ better |
| Further details โ not scored | ||
| Size | 2 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Mohamed Saud | Simple Bytes |
In-app purchases
System Rx
No in-app purchases
DomainDetails
- DomainDetails Pro Monthly$9.991 Month
- DomainDetails Pro Yearly$99.991 Year
Questions
Is System Rx free?
Is DomainDetails free?
Do System Rx or DomainDetails have ads?
Which is updated more often, System Rx or DomainDetails?
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