#1기능과 용도를 기준으로 고른 Zenplan 대안 도구 12개입니다.
| 3 | Spike | spikenow.com | 9.35만 | -3.39만 (-26.6%) | 무료+유료 | 미국 | 4.2 | 비교 |
| 4 | Inbox Zero | getinboxzero.com | 8.93만 | 5.68천 (+6.8%) | 무료+유료, 무료 체험 | 미국 | 4.4 | 비교 |
| 5 | Replyless | replyless.ai | 2.72천 | 259 (+10.5%) | 무료+유료 | 미국 | 4.1 | 비교 |
| 6 | Shortwave | shortwave.com | 19.33만 | -1.04만 (-5.1%) | 무료+유료, 무료 체험 | 미국 | 4.5 | 비교 |
| 7 | Hemingway Editor | flash.co | 74.16만 | 6.68만 (+9.9%) | 무료 | 인도 | 3.8 | 비교 |
| 8 | Ambient | ambient.us | 4.1천 | -2.81천 (-40.7%) | 가격 문의 | 미국 | 4.2 | 비교 |
| 9 | Read Speaker Coach | read.ai | 407.13만 | -20.32만 (-4.8%) | 무료+유료, 유료 | 미국 | 4.4 | 비교 |
| 10 | Zero Inbox | zeroinbox.ai | 2.11천 | -1.09천 (-34%) | 무료+유료 | 글로벌 | 4.1 | 비교 |
| 11 | Protime | protime.ai | 1.28천 | -1.11천 (-46.6%) | 무료 체험, 유료 | 스위스 | 4.1 | 비교 |
| 12 | Superhuman | superhuman.com | 651.42만 | 47.75만 (+7.9%) | 유료 | 미국 | 4.5 | 비교 |
#1
무료 / 오픈소스받은편지함을 정리하고 당신의 말투로 답장을 작성하는 AI 이메일 어시스턴트

Shortwave is an AI-powered email client that layers agentic automation on top of a modern inbox. It organizes, writes, searches, schedules and summarizes email with plain-language prompts, and adds team collaboration features designed to replace the Gmail-plus-Slack workaround.

특화 강점Ambient pools knowledge from meetings, chats, and emails into a shared context layer, then maps it to accounts and initiatives so Claude, ChatGPT, Gemini, and other AI tools start with actual business context instead of blank prompts.

Read AI (Read Speaker Coach) is an AI meeting assistant that joins Zoom, Google Meet, and Microsoft Teams to produce transcripts, summaries, action items, and speaker-coaching metrics, and adds AI-powered search across meetings, email, and messaging.

Zero Inbox is an AI email organizer that categorizes your inbox, bulk-deletes spam, unsubscribes from newsletters and promotions, and keeps what matters front and center — with approval requested before any message-changing action runs. It connects to Gmail, Google Workspace, Outlook and Hotmail through Google or Microsoft sign-in rather than asking for your password.
AI 중심 이메일로 받은편지함을 채팅형 워크스페이스로
AI로 더 나은 이메일 경험을
Shortwave is an AI-powered email client that layers agentic automation on top of a modern inbox. It organizes, writes, searches, schedules and summarizes email with plain-language prompts, and adds team collaboration features designed to replace the Gmail-plus-Slack workaround.
가독성을 색으로 보여 주는 글쓰기 편집기
Read AI (Read Speaker Coach) is an AI meeting assistant that joins Zoom, Google Meet, and Microsoft Teams to produce transcripts, summaries, action items, and speaker-coaching metrics, and adds AI-powered search across meetings, email, and messaging.
Zero Inbox is an AI email organizer that categorizes your inbox, bulk-deletes spam, unsubscribes from newsletters and promotions, and keeps what matters front and center — with approval requested before any message-changing action runs. It connects to Gmail, Google Workspace, Outlook and Hotmail through Google or Microsoft sign-in rather than asking for your password.
거래처까지 확인해 주는 AI 이메일 비서
에이전트와 이메일, 문서가 어디서나 함께하는 AI 생산성 스위트