MailSage AI vs Courierly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MailSage AI
This AI-powered assistant helps you write professional emails quickly and efficiently. It offers smart replies, custom drafting, and voice input, all while prioritizing your privacy with on-device processing.
- AI-powered email generation
- Smart and custom replies
- Voice input for drafting
- Outlook inbox integration
- On-device privacy processing
- Customizable communication style
- Light and dark mode
Read full descriptionHide full description
**MailSage AI – Smart Email Assistant** Write emails faster, smarter, and stress-free with MailSage AI. Generate AI-powered emails and messages, then easily share them via Outlook, Gmail, or other installed apps. Connect your Outlook inbox to create intelligent replies and send professional emails in seconds. ### Write Emails in Seconds No more staring at a blank screen. MailSage AI instantly creates clear, well-written email replies so you can respond quickly and confidently. ### Privacy First Your privacy matters. • We don't store your emails or drafts on our servers. • All processing — drafting, rewriting, and replying — happens locally on your device, keeping your data private and secure. • No unnecessary data storage • Secure authentication and connections ### Smart Inbox Integration Connect your Outlook account and view your recent emails in a clean, simple interface. Open any email and generate a reply with just one tap. ### AI-Powered Replies Choose how you want to respond: **Quick Reply** – Instantly generate a ready-to-send response **Custom Reply** – Tell AI what you want to say and get a personalized draft All replies are fully editable before sending. ### Speak Instead of Typing Use voice input to create emails effortlessly. Just speak your thoughts, and MailSage AI turns them into a complete email draft. ### Write Your Way Customize your communication style: • Friendly • Formal/Professional • Short MailSage AI adapts to your tone and helps you sound exactly how you want. ### Clean & Modern Experience Enjoy a smooth, distraction-free interface with: • Light and Dark mode • Fast and responsive design • Simple, intuitive navigation ### Trial Access Start with a trial access for 7 days and experience the full power of AI email writing. Upgrade anytime through Apple Subscriptions to continue using MailSage AI. ### Why MailSage AI? • Write Smarter, Save time, Every time. • Write better emails effortlessly. • Respond faster with confidence. • Use your voice to create emails effortlessly. • Stay productive on the go. --- Download MailSage AI and take control of your inbox today. Privacy Policy: https://app2.mailsageai.com/privacy Terms of Use (EULA): https://app2.mailsageai.com/termsofservice
Courierly
Manage your email infrastructure on the go. Monitor delivery, inspect payloads, and send emails directly from your phone. Troubleshoot issues and manage domains without needing a desktop.
- Monitor email delivery events
- Inspect request and response payloads
- Manage domains and webhooks
- Send, schedule, and cancel emails
- Reply to inbound emails
- Access API resources
Read full descriptionHide full description
Courierly is a mobile companion for Resend that helps developers monitor, debug, and manage email infrastructure directly from their phone. View delivery timelines, inspect request and response payloads, manage domains and webhooks, send emails, and troubleshoot delivery issues without opening a desktop dashboard. Built for independent developers, SaaS teams, and engineers who rely on Resend for transactional email. Features • Monitor delivery, bounce, open, and failure events • View sent and inbound emails • Inspect raw request / response payloads • Manage domains and DNS records • Create and manage webhooks • Send, schedule, and cancel emails • Reply to inbound emails with threading support • Access API resources including audiences and broadcasts • Light, dark, and terminal themes • Local-first architecture with direct API access Courierly connects directly to the Resend API using your own API key. No separate Courierly backend is required. Join our Telegram group to get updates, share feedback, and receive occasional promo offers for the app. Telegram:https://t.me/+T7cvKexKJthhMmU9 Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: MailSage AI at 5.0 against Courierly's 3.0. MailSage AI also leads on device support (3 vs 1). Courierly's advantage is in-app purchases (none vs 1). On price, ratings volume, ads and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. MailSage AI sells 1 in-app purchase, starting at $4.99 per month. Courierly asks for nothing beyond the download.
MailSage AI holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
| Parameter | MailSage AI | Courierly |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.0 (2 ratings) |
| Number of ratings | 1 | 2 — better |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 13 MB | 3 MB |
| Age rating | 12+ | 4+ |
| Developer | Neha Vaid | 建东 刘 |
In-app purchases
MailSage AI
- MailSage AI Pro$4.991 Month
Courierly
No in-app purchases









