Courierly vs SimpleMail by WK
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
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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/
SimpleMail by WK
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SimpleMail is a fast, private email client for iPhone and iPad. Connect any standard IMAP/SMTP account and get real-time new-mail notifications, folders, search, attachments, and compose with signatures. Read messages in light or dark, in English or Korean. Your email data stays on your device. SimpleMail talks directly to your mail server over TLS, and passwords are stored only in the system Keychain. The app displays advertising and requests App Tracking Transparency permission before initializing the advertising SDK. Features - IMAP + SMTP for any standard mail provider - Real-time push via IMAP IDLE - Folders, server-side search - Swipe to delete, junk, mark read/unread, flag - Compose with signatures - View and share attachments - Light / Dark message rendering - English & Korean
Screenshots
Verdict
The clearest difference is ads: Courierly at none against SimpleMail by WK's shown. Courierly also leads on update cadence (weekly vs fortnightly). SimpleMail by WK's advantage is device support (3 vs 1). On price, in-app purchases and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
Courierly ships an update weekly, SimpleMail by WK fortnightly. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.
| Parameter | Courierly | SimpleMail by WK |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Weekly — better | Fortnightly |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad, Mac — better |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | 建东 刘 | Wonkyoung Seo |
In-app purchases
Courierly
No in-app purchases
SimpleMail by WK
No in-app purchases









