人物像: Markus Frindは年商1,000万ドル（$10M）の出会い系アプリをたった一人で作り上げた
月商 — · 創業者—人 · 従業員—人 · —
—（—）· 創業 — · 記事掲載 November 13th, 2023 · — · 元の記事
創業者が新しいプログラミング言語学習のために2週間でサイトを構築。プロダクトベースの無料アクセスと「相性予測機能」が成長の鍵となり、信頼性の高いコミュニティを構築した。サイトは広告で収益化され、月商は2003年創業から数年後には31.6万ドル（約4,740万円）に達し、2015年の売却前には月間1,730万ドル（約25億9,500万円）を稼いでいた。
売値の出典: 記事の本文（無料利用、収益モデルについての記載）（2026-10-14 取得）
Markus Frind is the founder and CEO of Plenty of Fish (POF), a Canadian-based dating site. Markus started POF in 2003 and built it in 2 weeks as an exercise to help himself learn ASP.Net, a new programming language by then. He ended up selling the website for about US$575 million in 2015.
It can be difficult to find someone who is compatible with you and who shares your values and goals
Skills What skills did Markus Frind have that led to their success? Online Store Setup PR Services Personal Development Coaching LinkedIn Profile Optimization Recruitment Quality Assurance Health and Fitness Coaching Digital Product Delivery SMS Marketing
Markus started Plenty of Fish in 2003 as a way to improve his résumé. A new programming language called ASP.NET was released, and instead of reading books about it, he went ahead and created the site in two weeks to learn it. Internet Archive: Wayback Machine, plentyoffish.com, archived December 30, 2003
Markus Frind singlehandedly built Plenty Of Fish in 2003 at a time when a new programming called ASP.NET was just released. So, instead of reading books to learn ASP, he focused on creating the website as a practical way of teaching himself the programming language. Markus accomplished all this success on his own using only five servers, a Microsoft and ASP.NET tech stack.
Product-based marketing and free access to users was the way Markus got people off the ground. He introduced the "POF Chemistry Predictor," which used an in-depth questionnaire to assess users' personalities and recommend compatible matches. This added credibility to the site and was successful in gradually building a legitimate dating community.
The site was free to use and advertisements were the primary monetization channel.
Eventhi Other 2 using What Markus has to say about Eventhi Custom Built Stack 232 using newDocumentReady(function () { $(".database-result-bottom").unbind().click(function() { $(this).find(".database-result-bottom-contents").toggle(); }) // Mobile DB view toggle — switch between the compact row list (default) // and the rich card view, remembered in localStorage. Instant, no reload. // Leading ';' guards against ASI: the preceding statement ends in `})`. ;(function () { var group = document.querySelector('.db-view-toggle-group'); if (!group) return; var rowsPanel = document.getElementById('db-view-rows'); var cardsPanel = document.getElementById('db-view-cards'); function applyView(view) { var isCards = view === 'cards'; if (cardsPanel) cardsPanel.classList.toggle('hidden', !isCards); if (rowsPanel) rowsPanel.classList.toggle('hidden', isCards); group.querySelectorAll('.db-view-toggle').forEach(function (b) { b.classList.toggle('db-view-toggle-active', b.dataset.view === view); }); } var saved = 'rows'; try { saved = window.localStorage.getItem('dbMobileView') || 'rows'; } catch (e) {} applyView(saved === 'cards' ? 'cards' : 'rows'); group.querySelectorAll('.db-view-toggle').forEach(function (b) { b.addEventListener('click', function () { var v = b.dataset.view; try { window.localStorage.setItem('dbMobileView', v); } catch (e) {} applyView(v); }); }); })(); // Search UX: debounced auto-submit + global "/" focus shortcut. // Server-side pg_search is GIN-indexed and returns in <50ms; combined // with the page render, total feedback after the debounce window is // ~500ms — close enough to "live" without an XHR/Turbo refactor. var searchInput = document.getElementById('search'); if (searchInput) { var debounceTimer = null; var lastSubmittedValue = searchInput.value; searchInput.addEventListener('input', function () { clearTimeout(debounceTimer); debounceTimer = setTimeout(function () { // Don't submit if the value hasn't changed (e.g. arrow keys). if (searchInput.value === lastSubmittedValue) return; lastSubmittedValue = searchInput.value; searchInput.form && searchInput.form.submit(); }, 350); }); // Enter still submits immediately — short-circuits the debounce. searchInput.addEventListener('keydown', function (e) { if (e.key === 'Enter') { e.preventDefault(); clearTimeout(debounceTimer); searchInput.form && searchInput.form.submit(); } }); } // Global "/" shortcut to focus search — GitHub/Linear pattern. document.addEventListener('keydown', function (e) { if (e.key !== '/' || e.metaKey || e.ctrlKey || e.altKey) return; var t = e.target; if (t && (t.tagName === 'INPUT' || t.tagName === 'TEXTAREA' || t.isContentEditable)) return; var s = document.getElementById('search'); if (s) { e.preventDefault(); s.focus(); s.select(); } }); function prettySliderValue(func, value) { var n = Math.round(Number(value)); if (func == "money") { if (n >= 1000000000) return "$" + (n / 1000000000).toFixed(n % 1000000000 === 0 ? 0 : 1) + "B"; if (n >= 1000000) return "$" + (n / 1000000).toFixed(n % 1000000 === 0 ? 0 : 1) + "M"; if (n >= 1000) return "$" + (n / 1000).toFixed(n % 1000 === 0 ? 0 : 1) + "K"; return "$" + numberWithCommas(n); } else if (func == "daystomonths") { return (n / 30) + " months"; } else if (func == "hours") { return n + " hours"; } else { return n; } } function getInitialSliderValues(el) { var initial = el.dataset.initial; var defMin = Number(el.dataset.defaultmin); var defMax = Number(el.dataset.defaultmax); if (initial) { var parts = initial.split("|"); var a = parts[0] === "" ? defMin : Number(parts[0]); var b = parts[1] === "" ? defMax : Number(parts[1]); return [a, b]; } return [defMin, defMax]; } function createTwoProngedSlider(id) { var el = document.querySelector(id); if (!el || el.noUiSlider) return; var min = Number(el.dataset.min); var max = Number(el.dataset.max); var step = Number(el.dataset.step); var cleanfunc = el.dataset.cleanfunc; var values = getInitialSliderValues(el); var container = el.closest(".range-filter") || el.parentElement; var input = container.querySelector('input[type="hidden"]'); var label = container.querySelector(".preview-label"); noUiSlider.create(el, { start: values, connect: true, step: step, range: { min: min, max: max }, behaviour: "tap-drag" }); el.noUiSlider.on("update", function(vals) { var lo = Math.round(Number(vals[0])); var hi = Math.round(Number(vals[1])); if (label) label.textContent = prettySliderValue(cleanfunc, lo) + " – " + prettySliderValue(cleanfunc, hi); if (input) input.value = lo + "|" + hi; }); el.noUiSlider.on("change", function() { var form = el.closest("form"); if (form) form.submit(); }); } createTwoProngedSlider("#revenue-slider"); createTwoProngedSlider("#starting-costs-slider"); createTwoProngedSlider("#time-to-revenue-slider"); createTwoProngedSlider("#min-hours-per-week"); createTwoProngedSlider("#market-size"); createTwoProngedSlider("#startup-costs"); createTwoProngedSlider("#case-studies"); $(".mobile-filters-applied-button").click(function() { $(".database-filters").addClass("inView") }) $(".close-mobile-filters").click(function() { $(".database-filters").removeClass("inView") }) // Explore "More filters" — reveal/hide the secondary filter pills. var moreFiltersToggle = document.getElementById("explore-more-filters-toggle"); if (moreFiltersToggle) { moreFiltersToggle.addEventListener("click", function () { var panel = document.querySelector(".explore-secondary-filters"); if (!panel) return; var nowHidden = panel.classList.toggle("hidden"); moreFiltersToggle.setAttribute("aria-expanded", String(!nowHidden)); }); } // Infinite scroll lives in its OWN init block below (initSSInfiniteScroll), // deliberately decoupled from this newDocumentReady callback. Anything that // throws above (a slider lib that didn't load from CDN, a jQuery plugin, // etc.) would otherwise abort the rest of THIS callback and silently kill // infinite scroll — the "only works on a hard reload" bug. Keeping it // separate means nothing here can take it down. }); // ---- Infinite scroll (pro/admin/free-access; table + tile views) ---- // Driven off Kaminari's next-page URL, which the partial renders into // #infinite-scroll-sentinel only when the visitor is eligible. We fetch the // next full page, lift out the children of its .database-append-target // container (<tbody> rows for the table view, tiles for the grid views), // append them, then chain to that page's own sentinel URL. DOMParser does // NOT execute the fetched page's scripts, so only content nodes are added — // sliders/search/PostHog never re-run. The sentinel is absent for non-pro // visitors, so this whole block no-ops for them and their paywall is intact. // // Idempotent: guarded by sentinel.dataset.ssInfiniteInit so re-running on // pageshow (bfcache/back-forward restore, where DOMContentLoaded never fires) // can't double-observe an already-wired sentinel. function initSSInfiniteScroll() { var sentinel = document.getElementById('infinite-scroll-sentinel'); if (!sentinel || !sentinel.dataset.nextUrl) return; if (sentinel.dataset.ssInfiniteInit === '1') return; sentinel.dataset.ssInfiniteInit = '1'; // The "database" view renders TWO append targets — the mobile card list // and the desktop table tbody (one is display:none per viewport). Append // to both so infinite scroll works no matter which is visible. Tile views // have a single target. containers[0] drives the loaded-count readout. var containers = Array.prototype.slice.call(document.querySelectorAll('.database-append-target')); if (!containers.length) { delete sentinel.dataset.ssInfiniteInit; return; } var container = containers[0]; // Infinite scroll is live — hide the prev/next fallback for JS clients. var paginate = document.querySelector('.paginate'); if (paginate) paginate.style.display = 'none'; var numResults = document.querySelector('.num-results'); var loadingEl = sentinel.querySelector('.infinite-scroll-loading'); var nextUrl = sentinel.dataset.nextUrl; var loading = false; // Item nodes only — tile partials (e.g. _video) emit a sibling <style> // per render; those are global CSS we already have, so skip them when // appending and counting. function itemNodes(root) { return Array.prototype.filter.call(root.children, function (n) { return n.tagName !== 'STYLE' && n.tagName !== 'SCRIPT'; }); } function updateCount() { if (!numResults) return; var count = itemNodes(container).length; // Keep the "of N …" suffix; just bump the leading loaded-count. numResults.textContent = numResults.textContent.replace(/Showing\s+[\d,]+/, 'Showing ' + count.toLocaleString()); } function loadMore() { if (loading || !nextUrl) return; loading = true; if (loadingEl) loadingEl.style.display = ''; fetch(nextUrl, { headers: { 'X-Requested-With': 'XMLHttpRequest' } }) .then(function (r) { return r.text(); }) .then(function (html) { var doc = new DOMParser().parseFromString(html, 'text/html'); var srcs = doc.querySelectorAll('.database-append-target'); Array.prototype.forEach.call(srcs, function (src, i) { var dest = containers[i]; if (!dest) return; itemNodes(src).forEach(function (node) { dest.appendChild(document.importNode(node, true)); }); }); var ns = doc.getElementById('infinite-scroll-sentinel'); nextUrl = (ns && ns.dataset.nextUrl) || null; sentinel.dataset.nextUrl = nextUrl || ''; updateCount(); if (!nextUrl) { observer.disconnect(); sentinel.style.display = 'none'; } }) .catch(function () { /* leave nextUrl intact so a later scroll retries */ }) .finally(function () { loading = false; if (loadingEl) loadingEl.style.display = 'none'; }); } var observer = new IntersectionObserver(function (entries) { entries.forEach(function (e) { if (e.isIntersecting) loadMore(); }); }, { rootMargin: '600px 0px' }); observer.observe(sentinel); } newDocumentReady(initSSInfiniteScroll); // bfcache/back-forward restore doesn't fire DOMContentLoaded; pageshow does. // Idempotency guard above makes the re-call a no-op when already wired. window.addEventListener('pageshow', initSSInfiniteScroll); .blur-row { filter: blur(4px); pointer-events: none; user-select: none; } /* Mobile view toggle (rows ↔ cards) */ .db-view-toggle { display: inline-flex; align-items: center; gap: 5px; padding: 5px 11px; border: 0; border-radius: 6px; background: transparent; color: #64748b; font-size: 12px; font-weight: 600; cursor: pointer; transition: background-color 0.12s, color 0.12s; } .db-view-toggle-active { background: #0f172a; color: #ffffff; } .database-video-grid { display: grid; grid-template-columns: 1fr; gap: 18px; } @media (min-width: 768px) { .database-video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } } /* Airbnb-style range slider (uses noUiSlider) */ .range-filter { display: inline-flex; flex-direction: column; justify-content: center; gap: 4px; padding: 6px 16px 10px; border: 1px solid rgb(226 232 240); background: #fff; border-radius: 9999px; min-width: 220px; margin-bottom: 0 !important; } .range-filter .range-filter-header { display: flex; align-items: baseline; gap: 6px; line-height: 1; } .range-filter .range-filter-header label { font-size: 0.875rem; color: rgb(100 116 139); font-weight: 500; margin: 0 !important; line-height: 1.2; flex-shrink: 0; } .range-filter .range-filter-header label::after { content: "|"; margin-left: 6px; color: rgb(203 213 225); font-weight: 400; } .range-filter .preview-label { font-size: 0.875rem; color: rgb(15 23 42); font-weight: 600; line-height: 1.2; margin: 0 !important; white-space: nowrap; } .range-filter .filter-slider.noUi-target { height: 3px; background: rgb(226 232 240); border: 0; box-shadow: none; border-radius: 9999px; margin: 3px 6px 0; } .range-filter.is-active { border-color: rgb(15 23 42); background: rgb(241 245 249); } .range-filter.is-active .range-filter-header label { color: rgb(15 23 42); } .range-filter .filter-slider .noUi-connect { background: rgb(15 23 42); } .range-filter .filter-slider .noUi-handle { height: 20px; width: 20px; top: -8px; right: -10px; border-radius: 9999px; background: #fff; border: 1px solid rgb(203 213 225); box-shadow: 0 1px 2px rgba(15, 23, 42, 0.12), 0 2px 4px rgba(15, 23, 42, 0.08); cursor: grab; transition: transform 0.1s ease, box-shadow 0.1s ease, border-color 0.1s ease; outline: none; } .range-filter .filter-slider .noUi-handle::before, .range-filter .filter-slider .noUi-handle::after { display: none; } .range-filter .filter-slider .noUi-handle:hover { border-color: rgb(15 23 42); transform: scale(1.05); } .range-filter .filter-slider .noUi-handle.noUi-active, .range-filter .filter-slider .noUi-handle:focus-visible { cursor: grabbing; box-shadow: 0 0 0 6px rgba(15, 23, 42, 0.08), 0 2px 6px rgba(15, 23, 42, 0.18); border-color: rgb(15 23 42); } .range-filter .filter-slider.noUi-horizontal { height: 4px; } .range-filter input[type="hidden"] { display: none; }
IDEA REVENUE I Social media growth autom... · instoo.com Social automation tool for business growth. $30K /mo Ai dating conversation coach · rizz.app AI-powered conversation assistant for online daters. — Social media management tool · metricool.com "Social media management tool with analytics insights." $750K /mo Automated social media sc... · oneupapp.io Social media scheduling tool with automated repeat posting. $50K /mo Executive online presence... · qnary.com Tech-enabled executive online reputation management platform. $550K /mo Hyperlocal tutoring platform · millioncenters.com Hyperlocal platform connecting learners with nearby tutors. $1K /mo Desktop messenger app · messengerfordesktop.com "Standalone app for Facebook Messenger on desktop." $1.5K /mo newDocumentReady(function() { // Save-bookmark hover — delegated on document (guarded once) so rows // appended by infinite scroll get the behavior too. mouseover/mouseout // bubble (mouseenter/leave don't); closest('tr') scopes to the hovered row, // and the relatedTarget check suppresses flicker when moving cell-to-cell // within the same row. if (!window.__saveBookmarkHoverInit) { window.__saveBookmarkHoverInit = true; document.addEventListener('mouseover', function(e) { var row = e.target.closest('tr'); if (!row) return; var saveBookmark = row.querySelector('.save-bookmark'); if (saveBookmark) saveBookmark.classList.remove('invisible'); }); document.addEventListener('mouseout', function(e) { var row = e.target.closest('tr'); if (!row) return; if (e.relatedTarget && row.contains(e.relatedTarget)) return; var saveBookmark = row.querySelector('.save-bookmark'); if (saveBookmark) saveBookmark.classList.add('invisible'); }); } // ---- Tag-pill hover tooltip (LLM-generated context for each Tagging) ---- if (!window.__tagTooltipInit) { window.__tagTooltipInit = true; const tip = document.createElement('div'); tip.className = 'tag-tooltip-popover'; tip.style.cssText = [ 'position:fixed','z-index:9999','max-width:340px','display:none', 'background:#0f172a','color:#fff','font-size:12px','line-height:1.4', 'padding:8px 10px','border-radius:6px','box-shadow:0 8px 24px rgba(0,0,0,.18)', 'pointer-events:none','white-space:normal' ].join(';'); document.body.appendChild(tip); const showTip = function(e) { const target = e.currentTarget; const text = target.getAttribute('data-tag-tooltip'); if (!text) return; tip.textContent = text; tip.style.display = 'block'; const r = target.getBoundingClientRect(); const tr = tip.getBoundingClientRect(); let top = r.bottom + 8; if (top + tr.height > window.innerHeight - 8) top = r.top - 8 - tr.height; let left = r.left; if (left + tr.width > window.innerWidth - 8) left = window.innerWidth - tr.width - 8; if (left < 8) left = 8; tip.style.top = Math.round(top) + 'px'; tip.style.left = Math.round(left) + 'px'; }; const hideTip = function() { tip.style.display = 'none'; }; document.addEventListener('mouseover', function(e) { const el = e.target.closest('[data-tag-tooltip]'); if (el) showTip({ currentTarget: el }); }); document.addEventListener('mouseout', function(e) { const el = e.target.closest('[data-tag-tooltip]'); if (el) hideTip(); }); } });
Who is the owner of Plenty of Fish? When did Markus Frind start Plenty of Fish? What is Markus Frind's net worth? How much money has Markus Frind made from Plenty of Fish? {"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Who is the owner of Plenty of Fish?","acceptedAnswer":{"@type":"Answer","text":"Markus Frind is the founder of Plenty of Fish."}},{"@type":"Question","name":"When did Markus Frind start Plenty of Fish?","acceptedAnswer":{"@type":"Answer","text":"2003"}},{"@type":"Question","name":"What is Markus Frind's net worth?","acceptedAnswer":{"@type":"Answer","text":"Markus Frind's business makes an average of $17.3M/month."}},{"@type":"Question","name":"How much money has Markus Frind made from Plenty of Fish?","acceptedAnswer":{"@type":"Answer","text":"Markus Frind started the business in 2003, and currently makes an average of $208M/year."}}]}