# Email Client vs Post SMTP

The clearest difference is review sentiment: Email Client at 39% against Post SMTP's 0%. Post SMTP's advantage is iOS requirement (13.4 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Email Client sells 8 in-app purchases, starting at $19.99 per month and Post SMTP sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Email Client | Post SMTP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (4.7K ratings)](https://appshunter.io/ios/app/email-client-boomerang-mail/id1236906322/reviews)** | — |
| Number of ratings | **4.7K** | — |
| Positive reviews | **39.1% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 92 MB | 23 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Baydin Inc.](https://appshunter.io/developer/1121758661) | [Ahmed ElDin](https://appshunter.io/developer/516932416) |

## What reviewers say

### Email Client

[App page](https://appshunter.io/ios/app/email-client-boomerang-mail/id1236906322)

Manage all your email accounts in one place with features like read receipts, scheduled sending, and AI-powered writing feedback. Quickly schedule meetings directly from your inbox and pause incoming messages when you need to focus.

**Highlights:** One-tap calendar scheduling, Read receipts, Email scheduling, Inbox Pause, AI writing feedback, Multiple account support

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Boomerang Gmail Pro Monthly | $19.99 | per month |
| Boomerang Gmail Pro Monthly | $19.99 | per month |
| Boomerang Outlook Pro Monthly | $19.99 | per month |
| Boomerang Outlook Pro Monthly | $19.99 | per month |
| Boomerang Gmail Pro Yearly | $179.99 | per year |
| Boomerang Gmail Pro Yearly | $179.99 | per year |
| Boomerang Outlook Pro Yearly | $179.99 | per year |
| Boomerang Outlook Pro Yearly | $179.99 | per year |

**What reviewers like**

- 🚀 Efficient email management
- 👍 Intuitive interface
- 💡 Useful features like scheduling and boomerang
- 🚀 Fast and responsive

**What reviewers complain about**

- 🐛 Reliability issues (crashes, emails not syncing)
- 💰 Expensive subscription model
- 🔒 Concerns about data privacy
- 🐛 Bugs and glitches

**Reported bugs**

- Emails not loading properly
- Unread email count not updating correctly
- Scheduled emails not sending at the right time
- Compatibility issues with other apps (e.g., SwiftKey)

**Requested features**

- Unified inbox for multiple email accounts
- Customizable swipe gestures
- Dark mode
- Better email threading and conversation view
- Improved notification handling


### Post SMTP

[App page](https://appshunter.io/ios/app/post-smtp/id6473368559)

Monitor WordPress email delivery and troubleshoot failures from your mobile device. Get instant notifications for issues, preview email content, and resend failed messages with ease. Connect to multiple WordPress sites and various SMTP services.

**Highlights:** Email delivery monitoring, Failure notifications, Resend failed emails, Email content preview, Multiple site support, SMTP service integration

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Access | $4.99 | per month |
| Annual Pro Access | $39.99 | per year |


## Frequently asked questions

### Is Email Client free?

Email Client is free to download, with in-app purchases available.

### Is Post SMTP free?

Post SMTP is free to download, with in-app purchases available.

### Do Email Client or Post SMTP have ads?

Neither Email Client nor Post SMTP shows ads.

### Which is updated more often, Email Client or Post SMTP?

Email Client ships an update every 6 weeks, and Post SMTP every 6 weeks. Most recently, Email Client was updated on October 29, 2026 and Post SMTP on October 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*