# Concentration vs FlowBuddy: App Blocker & Focus App Concentration records 0 monthly visits with — month-over-month growth and Free pricing. FlowBuddy: App Blocker & Focus App records 0 monthly visits with — growth and Freemium pricing. | Metric | [Concentration](https://openaitools.app/tool/concentration) | [FlowBuddy: App Blocker & Focus App](https://openaitools.app/tool/flowbuddy) | | :--- | :--- | :--- | | Website URL | https://chrome.google.com/webstore/detail/concentration/jkilnegoiabelpjhljiagmmnnppdaajf | https://apps.apple.com/app/flowbuddy/id6479961860 | | Categories | AI Productivity Tools, Large Language Models (LLMs), AI Chatbot, AI Assistant | AI Productivity Tools, AI Flashcard Maker, AI Assistant | | Pricing Model | Free | Freemium | | Monthly Visits | 0 | 0 | | MoM Growth Rate | — | — | | Primary Market | Global | Global | | Direct Visits | 0 | 0 | | Review Score | 4.2 | 4.2 | | Saved Count | 3 | 0 | | Supported Platforms | Browser Extension | App | ## Concentration Concentration is a lightweight Chrome extension built around a simple idea: instead of maintaining a hand-written blocklist, you describe the kinds of sites you want to avoid and let AI decide which pages match. You enable the extension, open its popup, and submit one or more topic keywords — for example "gaming", "streaming" or "movie". From then on, when you browse, Concentration evaluates the sites you visit against those keywords and blocks the ones that fit. The extension offers two engines. Strict Mode relies on natural-language processing: it is fast but occasionally less precise. GPT Mode routes the same judgement through ChatGPT, which is slower but more accurate. You can switch between the two at any time, and you can remove keywords individually or reset the list entirely. Because the keywords are topical rather than tied to fixed domains, the blocker adapts to new and unfamiliar sites without any manual list maintenance. Concentration is free to use and, according to its Chrome Web Store listing, does not require a paid ChatGPT subscription. The listing (version 2.01, updated September 22, 2023) reports a 4.6-star average from about 20 ratings and roughly 228 users. The developer states that collected data on web history, user activity and website content is not sold to third parties. **Pricing & Plans:** Free. Concentration is offered at no charge and, per the Chrome Web Store listing, does not require a paid ChatGPT subscription to use its GPT Mode. - **Keyword-based blocking:** Enter topical keywords such as "gaming" or "movie" and the extension blocks pages that match them, so you never have to curate a fixed domain blocklist. - **NLP vs ChatGPT modes:** Switch between Strict Mode, which uses faster NLP classification, and GPT Mode, which uses ChatGPT for greater accuracy on ambiguous pages. - **Simple keyword management:** Submit keywords one at a time, remove them individually with an ✗ control, or wipe the whole list with a single Remove All action. - **No paid AI plan required:** The developer states you do not need a paid ChatGPT subscription to use the extension's ChatGPT-powered mode. - **Lightweight Chrome footprint:** The extension ships as a small ~1.5 MiB package that runs quietly in the background and is controlled from a popup. **Strengths:** Free with no required ChatGPT subscription; Keyword-based logic adapts to new sites without maintaining a blocklist; Two engines let you trade speed for accuracy; Very small download footprint (~1.5 MiB) **Limitations:** Last updated September 2023, so it does not track newer Chrome or GPT APIs; Small user base and only ~20 ratings, so reliability signals are thin; Keyword blocking can over-block legitimate pages that mention a topic [Profile (Markdown)](https://openaitools.app/tool/concentration.md) ## FlowBuddy: App Blocker & Focus App FlowBuddy tackles phone overuse with friction rather than total lockdown. Instead of blocking everything outright, it inserts a brief, mindful pause before a distracting app or website opens, so you have a chance to reconsider whether you actually want to be there. Blocking is built on Apple's Screen Time shielding APIs, which means it works reliably on iPhone without jailbreaks or profiles you have to babysit. Setup is deliberately simple: choose the apps, categories (like Social or Games) or web domains you want to shield, then decide how access works. You can define allowed schedules so work hours stay protected, choose from unlock mechanisms, and track how often you try to open blocked apps so you can see habits shifting over time. The app also adds a Tamagotchi-style character that sleeps at night and reacts when you unlock too often, a small nudge that makes the pause feel friendly rather than punitive. FlowBuddy is built by a small independent developer (Costin Bernhart) and is free to download with an optional Pro upgrade and in-app purchases. Note that an earlier AI-flashcard quiz feature was retired in version 1.4.0 — the current focus is purely on blocking, mindful pauses and habit tracking. **Pricing & Plans:** Free to download with in-app purchases; a Pro tier (including lifetime access) unlocks additional unlock mechanisms and customization. Verify current prices on the App Store. - **App, category and website blocking:** Shield individual apps, whole categories such as Social or Games, and web domains using Apple's Screen Time framework. - **Mindful unlock mechanisms:** Restore access by completing a breathing exercise or other intentional action, so opening an app never happens on autopilot. - **Allowed schedules:** Define time windows when apps block and unblock automatically, with times that hold steady across time zones and daylight saving changes. - **Usage tracking:** See how often you attempt to open blocked apps and watch your habits improve over weeks. - **Reactive companion character:** Your FlowBuddy sleeps at night and reacts when you unlock apps too often — a light Tamagotchi-style motivator. **Strengths:** Reliable blocking built on native Screen Time APIs; Flexible unlock mechanisms far less rigid than hard lockdowns; Simple setup with no complex configuration required; Frequently updated by an active solo developer **Limitations:** iPhone only — no Android or desktop version; Advanced unlock options sit behind the Pro purchase; The retired flashcard feature means it is now blocking-only [Profile (Markdown)](https://openaitools.app/tool/flowbuddy.md) ## Frequently Asked Questions ### How do Concentration and FlowBuddy: App Blocker & Focus App compare in monthly traffic? Concentration has 0 monthly visits, while FlowBuddy: App Blocker & Focus App has 0. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? Concentration has a month-over-month growth rate of —; FlowBuddy: App Blocker & Focus App has —. ### How does pricing compare? Concentration: Free. Free. Concentration is offered at no charge and, per the Chrome Web Store listing, does not require a paid ChatGPT subscription to use its GPT Mode. FlowBuddy: App Blocker & Focus App: Freemium. Free to download with in-app purchases; a Pro tier (including lifetime access) unlocks additional unlock mechanisms and customization. Verify current prices on the App Store. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | -11.3% | Freemium | All-in-one AI assistant across web, browser, desktop and mobile | [.md](https://openaitools.app/tool/monica-ai.md) | | 2 | [Sider](https://openaitools.app/tool/sider) | 2,644,740 | -10.6% | Freemium | AI sidebar and browser agent for reading, writing and research | [.md](https://openaitools.app/tool/sider.md) | | 3 | [WorkBuddy](https://openaitools.app/tool/workbuddy) | 2,341,262 | +43.9% | Freemium | An AI work partner that turns a sentence into finished office deliverables | [.md](https://openaitools.app/tool/workbuddy.md) | | 4 | [AIPRM](https://openaitools.app/tool/aiprm) | 708,870 | -6.9% | Freemium, Paid | A prompt library and management layer for ChatGPT and other AI models | [.md](https://openaitools.app/tool/aiprm.md) | | 5 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | One browser agent that combines every major AI model with web automation | [.md](https://openaitools.app/tool/harpa-ai.md) | | 6 | [Thea](https://openaitools.app/tool/thea) | 273,076 | -27% | Freemium | Free AI study partner that turns your course material into practice questions, guides and flashcards | [.md](https://openaitools.app/tool/thea.md) | | 7 | [Akiflow](https://openaitools.app/tool/akiflow) | 175,987 | -21.7% | Free Trial, Paid | Tasks, calendar and an AI sidekick in one time-blocking planner | [.md](https://openaitools.app/tool/akiflow.md) | | 8 | [ScholarSail](https://openaitools.app/tool/scholarsail) | 23,122 | +123.8% | Freemium | One connected study workspace for flashcards, mind maps and memory palaces | [.md](https://openaitools.app/tool/scholarsail.md) | | 9 | [Focus AI](https://openaitools.app/tool/focus-ai) | 7,002 | -16.6% | Paid | The Chrome website blocker that judges every page against your task | [.md](https://openaitools.app/tool/focus-ai.md) | | 10 | [KardsAI — Instant Flashcards Mobile App](https://openaitools.app/tool/kardsai-instant-flashcards-mobile-app) | 5,198 | -4.6% | Freemium | Turn any PDF, note, image or prompt into smart flashcards in seconds | [.md](https://openaitools.app/tool/kardsai-instant-flashcards-mobile-app.md) | --- Source: https://openaitools.app/compare/concentration-vs-flowbuddy More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)