機能と用途で選んだ、Zenplan の代替ツール 12 件。
| 順位 | ツールとキャッチコピー | 公式ドメイン | 月間訪問数 | 前月比成長率 |
|---|
| 料金モデル |
|---|
| 主要市場 |
|---|
| 評価 |
|---|
| 比較 |
|---|
| ● | Zenplan | zenplan.ca | 0 | -2842 (-100%) | フリーミアム | グローバル | 4 | プロフィール |
| 1 | Spark Mail | sparkmailapp.com | 43.52万 | -6.78万 (-13.5%) | フリーミアム、無料トライアル | アメリカ合衆国 | 4.3 | 比較 |
| 2 | BlueMail | bluemail.me | 31.98万 | -1.97万 (-5.8%) | 無料 | アメリカ合衆国 | 4.3 | 比較 |
| 3 | Spike | spikenow.com | 9.35万 | -3.39万 (-26.6%) | フリーミアム | アメリカ合衆国 | 4.2 | 比較 |
| 4 | Inbox Zero | getinboxzero.com | 8.93万 | 5676 (+6.8%) | フリーミアム、無料トライアル | アメリカ合衆国 | 4.4 | 比較 |
| 5 | Replyless | replyless.ai | 2715 | 259 (+10.5%) | フリーミアム | アメリカ合衆国 | 4.1 | 比較 |
| 6 | Shortwave | shortwave.com | 19.33万 | -1.04万 (-5.1%) | フリーミアム、無料トライアル | アメリカ合衆国 | 4.5 | 比較 |
| 7 | Hemingway Editor | flash.co | 74.16万 | 6.68万 (+9.9%) | 無料 | インド | 3.8 | 比較 |
| 8 | Ambient | ambient.us | 4099 | -2813 (-40.7%) | 料金は要問い合わせ | アメリカ合衆国 | 4.2 | 比較 |
| 9 | Read Speaker Coach | read.ai | 407.13万 | -20.32万 (-4.8%) | フリーミアム、有料 | アメリカ合衆国 | 4.4 | 比較 |
| 10 | Zero Inbox | zeroinbox.ai | 2111 | -1088 (-34%) | フリーミアム | グローバル | 4.1 | 比較 |
| 11 | Protime | protime.ai | 1279 | -1114 (-46.6%) | 無料トライアル、有料 | スイス | 4.1 | 比較 |
| 12 | Superhuman | superhuman.com | 651.42万 | 47.75万 (+7.9%) | 有料 | アメリカ合衆国 | 4.5 | 比較 |
AIを軸にしたメールで、受信トレイをチャット風ワークスペースに

無料・オープンソース受信トレイを自動整理し、あなたの口調で返信を下書きするAIメールアシスタント
AIで、もっと良いメール体験を

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.
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.
読みやすさを色で示すライティングエディタ

特化型Ambient 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.
特化型Ambient 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.
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.
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.
エージェント、メール、ドキュメントがどこでも働くAI生産性スイート