PT0 vs Edsger
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PT0
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PASS YOUR COMPTIA PENTEST+ (PT0-003) EXAM Master penetration testing and ethical hacking with 500+ practice questions designed to get you certified on your first attempt. 500+ practice questions 5-minute study sessions Track your progress Remove mastered questions Text-to-speech support Dark mode available WHY GET CERTIFIED? Security professionals earn up to $203K annually (Skillsoft 2024). CompTIA PenTest+ validates your offensive security skills and is approved by the U.S. DoD under Directive 8570, making you a top candidate for penetration testing and vulnerability assessment roles worldwide. WHAT YOU'LL MASTER: • Engagement management including rules of engagement, scoping, and legal compliance • Reconnaissance techniques with passive OSINT and active enumeration methods • Network enumeration using Nmap, Netcat, and service fingerprinting • Vulnerability discovery and analysis with automated and manual scanning tools • OWASP Top 10 including injection, broken access control, and SSRF attacks • Exploitation of web applications, networks, and wireless environments • Post-exploitation techniques including persistence, pivoting, and data exfiltration • Lateral movement strategies using pass-the-hash, token impersonation, and credential harvesting • Cloud penetration testing across AWS, Azure, and GCP environments • API security testing including authentication bypass and parameter manipulation • AI-based attack techniques including prompt injection and adversarial AI exploitation • LOLBins and living-off-the-land techniques for evasion and post-exploitation • Container escape methods targeting Docker and Kubernetes misconfigurations • Mobile application testing including reverse engineering • Scripting and code analysis with Python, Bash, PowerShell, and Ruby for custom exploit development STUDY ANYWHERE: Coffee breaks. Commutes. Lunch hours. Turn dead time into security expertise. Download now. Pass your exam. Master penetration testing.
Edsger
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Edsger is a coding workspace for iPhone and iPad. Write C, Python, JavaScript or Lua, press Run, and your program runs right on your device. No account, no ads, and no network needed to write or run code. Ask Edsger, the built-in AI tutor, to explain code, fix an error or walk through a math or science problem. The free tutor and coding agent run entirely on your device, so your code and questions stay private. FOUR LANGUAGES, ON DEVICE • C with PicoC, a small interpreter • Python 3.14 with the standard library • JavaScript with JavaScriptCore • Lua 5.5 Each language has its own projects, syntax highlighting, console input and Stop. AI THAT HELPS YOU LEARN • Chat: ask questions, attach documents, and get step-by-step math • Agent IDE: describe a change and the agent reads, edits and runs files in your project, with restore points • On-device models are free and work offline EDSGER PRO (OPTIONAL SUBSCRIPTION) • Dijkstra Super Fast 1.0, a faster cloud model for Chat and the Agent IDE, with a monthly AI allowance • Photos in Chat with Dijkstra • Bring your own OpenAI or Claude API key • Push projects to your GitHub account • A custom Chat note and extra colors Pro Plus includes three times the Pro allowance. Cloud AI only runs after you allow sharing, and you can turn it off anytime. HONEST LIMITS C runs in PicoC, not GCC or Clang, so some standard library features are missing. Python, JavaScript and Lua run without package installs, network access or GUIs. AI can make mistakes; review its code and don't rely on it for medical, legal or financial advice. Subscriptions renew monthly unless canceled at least 24 hours before the period ends. Manage them in your Apple Account settings. Terms: https://garrettmichae1.github.io/lilc/terms.html Privacy: https://garrettmichae1.github.io/lilc/privacy.html
Screenshots
Verdict
The clearest difference is update cadence: Edsger at every 3 weeks against PT0's every 3 months. PT0's advantage is iOS requirement (15.0 vs 18.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PT0 ships an update every 3 months, Edsger every 3 weeks. The most recent releases landed on October 19, 2026 and October 23, 2026 respectively.
| Parameter | PT0 | Edsger |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 27 MB | 3.3 GB |
| Age rating | 4+ | 12+ |
| Developer | Davy Raitt | GARRETT MICHAEL WOODSIDE |
In-app purchases
PT0
No in-app purchases
Edsger
No in-app purchases





