https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's tech blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, distributed training, and data engineering. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Sat, 16 May 2026 00:00:00 GMT https://www.youngju.dev/blog/culture/2026-05-16-ai-customer-success-platforms-2026-catalyst-gainsight-churnzero-vitally-planhat-totango-clientsuccess-deep-dive.en https://www.youngju.dev/blog/culture/2026-05-16-ai-customer-success-platforms-2026-catalyst-gainsight-churnzero-vitally-planhat-totango-clientsuccess-deep-dive.en A May 2026 deep dive into the AI-powered Customer Success Platform (CSP) landscape. Enterprise leaders Gainsight, Totango and ChurnZero, modern challengers Catalyst, Vitally and Planhat, adjacent categories like Pendo and WalkMe, the NRR/GRR/CHI metric stack, and field reports from Toss CX, Mercari and Channel Talk - all in one post. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) customer-successcatalystgainsightchurnzerovitallyplanhattotangoclient-successpendochurn-management2026deep-diveenglish https://www.youngju.dev/blog/culture/2026-05-16-ai-customer-success-platforms-2026-catalyst-gainsight-churnzero-vitally-planhat-totango-clientsuccess-deep-dive.ja https://www.youngju.dev/blog/culture/2026-05-16-ai-customer-success-platforms-2026-catalyst-gainsight-churnzero-vitally-planhat-totango-clientsuccess-deep-dive.ja 2026年5月時点のAIカスタマーサクセス (CS) プラットフォームを整理します。Gainsight・Totango・ChurnZero などのエンタープライズリーダー、Catalyst・Vitally・Planhat などのモダンな新興勢力、Pendo・WalkMe などのデジタル採用ツール、NRR/GRR/CHI などの主要指標、そして Toss CX チーム・メルカリ・Channel Talk などの韓日現場事例まで一つの記事にまとめました。 Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) customer-successcatalystgainsightchurnzerovitallyplanhattotangoclient-successpendochurn-management2026deep-dive日本語 https://www.youngju.dev/blog/culture/2026-05-16-ai-customer-success-platforms-2026-catalyst-gainsight-churnzero-vitally-planhat-totango-clientsuccess-deep-dive https://www.youngju.dev/blog/culture/2026-05-16-ai-customer-success-platforms-2026-catalyst-gainsight-churnzero-vitally-planhat-totango-clientsuccess-deep-dive 2026년 5월 기준 AI 기반 고객 성공(CS) 플랫폼을 정리합니다. Gainsight · Totango · ChurnZero 같은 엔터프라이즈 리더, Catalyst · Vitally · Planhat 같은 모던 신흥 강자, Pendo · WalkMe 같은 디지털 채택 도구, NRR/GRR/CHI 같은 핵심 지표, 그리고 토스 CX팀 · Mercari · 채널톡 같은 한·일 현장 사례까지 한 글에 담았습니다. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) customer-successcatalystgainsightchurnzerovitallyplanhattotangoclient-successpendochurn-management2026deep-dive https://www.youngju.dev/blog/culture/2026-05-16-product-analytics-ab-testing-2026-mixpanel-amplitude-posthog-heap-pendo-optimizely-plausible-deep-dive.en https://www.youngju.dev/blog/culture/2026-05-16-product-analytics-ab-testing-2026-mixpanel-amplitude-posthog-heap-pendo-optimizely-plausible-deep-dive.en A May 2026 map of the product analytics, A/B testing, and CDP ecosystem in one place. Covers Mixpanel (long-time leader), Amplitude (expanding into experimentation), PostHog (open-source all-in-one), Heap (autocapture), Pendo (adoption), Contentsquare (which acquired Hotjar), Fullstory (session replay), Optimizely, VWO, Statsig, GrowthBook; the privacy-first camp of Plausible, Fathom, Umami, Matomo, Simple Analytics; the CDPs Segment (Twilio), RudderStack, and Snowplow; plus the 2026 AI features in Mixpanel Spark, Amplitude Audience GenAI, and PostHog AI. Includes Korean (Toss, Kakao) and Japanese (Mercari, AbemaTV) case studies and a decision guide from solo developers through enterprise. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) product-analyticsab-testingmixpanelamplitudeposthogheappendohotjarcontentsquarefullstoryoptimizelyvwostatsiggrowthbookplausiblefathomumamimatomosegmentrudderstacksnowplow2026deep-diveenglish https://www.youngju.dev/blog/culture/2026-05-16-product-analytics-ab-testing-2026-mixpanel-amplitude-posthog-heap-pendo-optimizely-plausible-deep-dive.ja https://www.youngju.dev/blog/culture/2026-05-16-product-analytics-ab-testing-2026-mixpanel-amplitude-posthog-heap-pendo-optimizely-plausible-deep-dive.ja 2026年5月時点のプロダクト分析・A/B テスト・CDP エコシステムを一気にまとめます。Mixpanel(長年のリーダー)、Amplitude(実験領域へ拡大)、PostHog(オープンソースのオールインワン)、Heap(自動キャプチャ)、Pendo(採用)、Contentsquare(Hotjar 買収)、Fullstory(セッションリプレイ)、Optimizely、VWO、Statsig、GrowthBook、プライバシー優先の Plausible・Fathom・Umami・Matomo・Simple Analytics、CDP の Segment(Twilio)・RudderStack・Snowplow、そして Mixpanel Spark・Amplitude Audience GenAI・PostHog AI など 2026 年の AI 機能までを網羅。韓国(トス・カカオ)と日本(メルカリ・AbemaTV)の事例、ソロ開発者からエンタープライズまでの意思決定ガイドも付属。 Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) product-analyticsab-testingmixpanelamplitudeposthogheappendohotjarcontentsquarefullstoryoptimizelyvwostatsiggrowthbookplausiblefathomumamimatomosegmentrudderstacksnowplow2026deep-dive日本語 https://www.youngju.dev/blog/culture/2026-05-16-product-analytics-ab-testing-2026-mixpanel-amplitude-posthog-heap-pendo-optimizely-plausible-deep-dive https://www.youngju.dev/blog/culture/2026-05-16-product-analytics-ab-testing-2026-mixpanel-amplitude-posthog-heap-pendo-optimizely-plausible-deep-dive 2026년 5월 기준 제품 분석·A/B 테스트·CDP 생태계를 한 번에 정리합니다. Mixpanel(오랜 리더)·Amplitude(실험으로 확장)·PostHog(오픈소스 올인원)·Heap(자동 추적)·Pendo(채택)·Contentsquare(Hotjar 인수)·Fullstory(세션 리플레이)·Optimizely·VWO·Statsig·GrowthBook, 프라이버시 우선의 Plausible·Fathom·Umami·Matomo·Simple Analytics, CDP의 Segment(Twilio)·RudderStack·Snowplow, 그리고 Mixpanel Spark·Amplitude Audience GenAI·PostHog AI 같은 2026년 AI 기능까지. 한국(토스·카카오)과 일본(메르카리·AbemaTV) 사례, 그리고 1인 개발자부터 엔터프라이즈까지 의사결정 가이드를 제공합니다. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) product-analyticsab-testingmixpanelamplitudeposthogheappendohotjarcontentsquarefullstoryoptimizelyvwostatsiggrowthbookplausiblefathomumamimatomosegmentrudderstacksnowplow2026deep-dive https://www.youngju.dev/blog/culture/2026-05-16-project-management-issue-tracker-2026-linear-jira-asana-clickup-height-shortcut-plane-deep-dive.en https://www.youngju.dev/blog/culture/2026-05-16-project-management-issue-tracker-2026-linear-jira-asana-clickup-height-shortcut-plane-deep-dive.en A map of the 2026 PM / issue-tracker market. Linear (Series C 2024, $1.25B) has cornered developer love; Jira remains the enterprise default; Asana owns marketing/agencies; ClickUp pushes all-in-one; Height bets on AI-native; Shortcut carries the Pivotal Tracker torch; Notion Projects ties docs and tickets; Monday.com goes visual; Basecamp 4 (37signals) stays minimalist; Trello fades; Plane is the open-source Linear; Productboard / Aha! / Pendo carve out product roadmaps; GitHub Projects v2 and GitLab Issues live code-adjacent. Pivotal Tracker died Oct 2023. We close with Korea (Jandi, NAVER WORKS, Collabee, Dooray) and Japan (Backlog by Nulab, Cybozu kintone/Garoon, Sansan, freee). Who should pick what. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) project-managementissue-trackerlinearjiraasanaclickupheightshortcutnotion-projectsmonday-combasecamptrellobacklogplaneproductboardahapendogithub-projectsgitlab-issues2026deep-diveenglish https://www.youngju.dev/blog/culture/2026-05-16-project-management-issue-tracker-2026-linear-jira-asana-clickup-height-shortcut-plane-deep-dive.ja https://www.youngju.dev/blog/culture/2026-05-16-project-management-issue-tracker-2026-linear-jira-asana-clickup-height-shortcut-plane-deep-dive.ja 2026年のPM・イシュートラッカー市場の地図。開発者の愛を独占したLinear（2024年Series C、評価額12.5億ドル）、エンタープライズ標準のJira、マーケ/エージェンシーのAsana、オールインワンのClickUp、AIネイティブのHeight、Pivotal Tracker亡き後の正統派Shortcut、Notion Projects、ビジュアルのMonday.com、ミニマルなBasecamp 4（37signals）、OSS Linear代替のPlane、製品ロードマップ系のProductboard / Aha! / Pendo、コード隣接のGitHub Projects v2 / GitLab Issues、そして2023年10月に終了したPivotal Tracker。最後に韓国（Jandi・LINE WORKS・Collabee・dooray）と日本（Backlog（Nulab）・Cybozu kintone/Garoon・Sansan・freee）まで。誰が何を選ぶべきかをまとめる。 Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) project-managementissue-trackerlinearjiraasanaclickupheightshortcutnotion-projectsmonday-combasecamptrellobacklogplaneproductboardahapendogithub-projectsgitlab-issues2026deep-dive日本語 https://www.youngju.dev/blog/culture/2026-05-16-project-management-issue-tracker-2026-linear-jira-asana-clickup-height-shortcut-plane-deep-dive https://www.youngju.dev/blog/culture/2026-05-16-project-management-issue-tracker-2026-linear-jira-asana-clickup-height-shortcut-plane-deep-dive 2026년 프로젝트 관리 / 이슈 트래커 시장의 지도. 개발자 사랑을 독점한 Linear(Series C 2024, $1.25B), 엔터프라이즈 표준 Jira, 마케팅/에이전시의 Asana, 올인원 ClickUp, AI-네이티브 Height, Clubhouse를 잇는 Shortcut, Notion Projects, 비주얼 Monday.com, 미니멀 Basecamp 4(37signals), Atlassian 트레이드오프, 오픈소스 Linear 대안 Plane, 제품 로드맵 도구 Productboard/Aha!/Pendo, 코드 인접 GitHub Projects v2 / GitLab Issues, 그리고 Pivotal Tracker 2023년 종료 이후. 한국의 잔디·라인웍스·콜라비·NAVER dooray, 일본의 Backlog(Nulab)·Cybozu·Sansan까지 — 누가 무엇을 골라야 하나. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) project-managementissue-trackerlinearjiraasanaclickupheightshortcutnotion-projectsmonday-combasecamptrellobacklogplaneproductboardahapendogithub-projectsgitlab-issues2026deep-dive