# CADT EOS Mobile vs Post SMTP

The clearest difference is in-app purchases: CADT EOS Mobile at none against Post SMTP's 2. Post SMTP's advantage is update cadence (every 6 weeks vs every 5 months) and iOS requirement (13.4 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Post SMTP sells 2 in-app purchases, starting at $4.99 per month. CADT EOS Mobile asks for nothing beyond the download.

CADT EOS Mobile ships an update every 5 months, Post SMTP every 6 weeks. The most recent releases landed on September 10, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | CADT EOS Mobile | Post SMTP |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Monetization | — | Freemium |
| Size | 28 MB | 23 MB |
| Requires iOS | 17.0 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CADT Solutions GmbH](https://appshunter.io/developer/1616438674) | [Ahmed ElDin](https://appshunter.io/developer/516932416) |

## What reviewers say

### CADT EOS Mobile

[App page](https://appshunter.io/ios/app/cadt-eos-mobile/id1616438672)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 CADT EOS Mobile free?

CADT EOS Mobile is free to download, with no in-app purchases.

### Is Post SMTP free?

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

### Do CADT EOS Mobile or Post SMTP have ads?

Neither CADT EOS Mobile nor Post SMTP shows ads.

### Which is updated more often, CADT EOS Mobile or Post SMTP?

CADT EOS Mobile ships an update every 5 months, and Post SMTP every 6 weeks. Most recently, CADT EOS Mobile was updated on September 10, 2026 and Post SMTP on June 4, 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.*