System Profiler vs Kestrel Sight
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
System Profiler
Access detailed information about your device's system, memory, network, and active connections. Monitor CPU and battery usage, disk space, and network speeds in a well-organized interface.
- Device system information
- Real-time disk and memory usage
- Battery level and status
- CPU usage and load averages
- Network speed and IP details
- List of active connections
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SYSTEM PROFILER dashboard provides a well-organized, multi-layered user interface using which information about the iPad applications, Operating System, and active services can be checked. System: This tab will give information about currently running devices, the amount of CPU and battery usage, space utilization, page memory allocation, technical specification related to product can be found here. - Device systems information (Name, Version, Retina) - Uptime, last boot - Real-time disk usage & free space - Battery level & status (charging, discharging) - CPU usage, CPU count, load averages - Memory usage, pages ins/outs (detailed information) - All Processes Memory: Get complete display regarding the RAM specific wired memory, free space, Active, Inactive memory. - Real time Wired, Active, Inactive memory visual status displays Network: Type of channel used for carrying information, the type of data employed, bandwidth of the network. Get details about the Internet Protocol ID of the working system (like Subnet Mask, Network Address, Broadcast Address, Host Address etc.). - Mobile carrier information - Data Used - Live network speed - Advanced information about your network and IP - Get your public IP (as seen on internet) Connections: Get details regarding the number of active connections, remote system IP, local IP with their port numbers. - List active connections - Connection local and remote IP - Connection local and remote port - Connection status - Connection download and upload traffic.
Kestrel Sight
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Kestrel Sight brings professional packet capture analysis to iPhone and iPad. Every byte is processed on-device — Kestrel makes no network connections, and collects no analytics. WHAT'S NEW CSV Export — Three profiles: Summary (Excel-ready, 9 columns), Detailed (every protocol layer, ~24 columns), Flow (one row per conversation). Export everything or just bookmarked packets, with bookmark notes preserved as columns. Filenames indicate scope at a glance. Smart Bookmarks — Bookmarking a flow, host, DNS query, or stream now resolves to all related packets in CSV exports. Tap "View" on any bookmark to jump straight to that data with the right filter applied. Expanded Protocol Detection — Added classification for SMB, mDNS, DHCP, NTP, SNMP, SSDP, and QUIC. Dashboard Navigation — Every dashboard widget is now interactive. Tap Total Packets to open Packets, tap a Top Talker to filter Hosts to that IP, tap "TCP" in Protocol Distribution to filter the Packets list, and so on. Subtle chevrons indicate what's tappable. Haptic Feedback — Bike-spoke clicker feedback when scrolling lists. Crisp tap feedback on buttons. Adjustable row density. New filter-bar toggle cycles between Classic, Compact, and Comfortable layouts in the Packets browser. Compact fits ~22 rows per phone screen; Comfortable mirrors iOS Mail's two-line look. On iPad, Classic uses a denser style single-line row. App Switcher privacy. Sight now hides the analysis surface behind the Kestrel logo whenever the app leaves the foreground, so the iOS App Switcher thumbnail and AirPlay mirroring. Faster first-tap haptic response and internal robustness improvements. CORE FEATURES Dashboard — Protocol distribution, encryption stats, top talkers, session summary Packets — Browse and filter with detailed per-layer inspection Raw Data Search — Query any byte sequence in its original form Flows — Bidirectional reconstruction with byte counts, packet counts, timing Hosts — Per-IP profile with traffic stats, port activity, connection mapping DNS — Extract and search all DNS queries and responses Streams — TCP stream reassembly with full-content viewer (auto-runs under 1 GB) Timeline — Visual event timeline with filtering Audit Log — SHA-256 file hashing and session audit log included in PDF exports CAPACITY Up to 1 GB — Full feature set with automatic TCP reassembly Over 1 GB — TCP reassembly disabled; packets, flows, hosts, DNS, and timeline remain fully functional Over 2 GB — Application performance may degrade SUPPORTED FORMATS PCAP, PCAPNG IDEAL FOR SOC analysts reviewing captures away from the workstation Network administrators troubleshooting connectivity Incident responders triaging captures in the field Penetration testers reviewing engagement data Educators and students learning protocol behavior PRIVACY AND SECURITY Zero network access — no outbound connections No analytics, tracking, or advertising Kestrel is designed as an analytical and educational starting point. Always verify findings independently before acting on them. No software can guarantee absolute security; follow your organization's evidence-handling procedures when working with sensitive captures. IMPORTANT NOTES Kestrel analyzes pre-captured PCAP files only — live capture is not permitted within iOS by the platform itself. Screenshots may combine demo and real data. Large captures may extend load times. Devices with 8 GB RAM or more are recommended for multi-gigabyte files. The demo uses fabricated sample packets.
Screenshots
Verdict
The clearest difference is price: System Profiler at Free against Kestrel Sight's $1.99. System Profiler also leads on iOS requirement (8.0 vs 18.6). On ads, in-app purchases 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
System Profiler is free to download; Kestrel Sight costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | System Profiler | Kestrel Sight |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 2.2 (5 ratings) — better | — |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 8.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 6 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | SysTools | Tracivex LLC |
In-app purchases
System Profiler
No in-app purchases
Kestrel Sight
No in-app purchases
Questions
Is System Profiler free?
Is Kestrel Sight free?
Do System Profiler or Kestrel Sight have ads?
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