12 Best Fellow.app Alternatives in 2026
Fellow.app is a Security tool (Paid). Looking for alternatives? These 12 verified Security tools on Stremit offer comparable capabilities, features, and pricing.
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Arc from The Browser Company
Arc is a browser designed to provide a calmer and more personal internet experience by minimizing clicks and distractions. Existing Arc users will have the option to import their data into the new browser, Dia, which is built from the...
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2
Prbl — AI code security scanner
Prbl is an AI code security scanner for repositories and live apps built with tools such as Cursor, Claude, Copilot, Lovable and Bolt. It detects hardcoded keys, missing auth checks and injection flaws, then uses an AI rewriter to write...
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Feedly: Track the topics and trends that matter to you
Feedly is a cybersecurity threat intelligence platform that collects, analyzes, and shares actionable intelligence on vulnerabilities, cyberattacks, threat actors, and Internet of Things (IoT) devices. It is designed for cybersecurity...
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UndetectedGPT
Bypass AI detection with UndetectedGPT's free AI humanizer and create undetectable, human-sounding content using advanced rewriting tools.
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ResilAI — Continuous Incident Readiness & Cybersecurity Verification
ResilAI is a cybersecurity verification platform designed to mitigate the risk of ransomware and cyber attacks. It provides continuous, deterministic incident readiness scoring and automated control verification to ensure organizational...
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The Most Trusted AI Detector
Winston AI is the industry leading AI content detector and plagiarism checker software for ChatGPT, GPT4, Google Gemini and more.
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OllaVPN
OllaVPN is a free, lifetime VPN with post-quantum-ready encryption, an always-on kill switch, and in-tunnel DNS on a growing global network. It is designed for users who value security and privacy without paying a subscription fee....
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AI Detector
Use our AI checker to protect your reputation and improve your content quality by accurately detecting duplicate content and artificially generated text.
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PlagiaShield
PlagiaShield helps find and remove content thefts, protecting your work. It is for creators and businesses looking to protect their content from unauthorized use. PlagiaShield stands out with its comprehensive approach to identifying...
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AISafe Labs
AISafe Labs delivers on-demand, AI-powered penetration testing to assess application security. Users can conduct three types of assessments: Source Code Audits, White-Box Pentests (combining code analysis with live environment testing),...
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asqav
Asqav provides signed, tamper-evident receipts for every action taken by an AI agent. Each receipt captures the agent’s intended action (intent), the policy decision made, and a fingerprint of the outcome, making the entire process...
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12
Agentic Integrity Foundation
Agentic Integrity Foundation (AIF) acts as a local, on-device firewall that evaluates covered coding-agent tool calls before they are executed. It monitors the action surface of agents, allowing users to observe the resulting...
Fellow.app Alternatives FAQ
What are the best alternatives to Fellow.app?
On Stremit, the closest Security alternatives to Fellow.app are Arc from The Browser Company, Prbl — AI code security scanner, Feedly: Track the topics and trends that matter to you.
Is there a free alternative to Fellow.app?
Yes. Arc from The Browser Company, Prbl — AI code security scanner, UndetectedGPT are listed with a free plan on Stremit.