# MailJerry vs eIAM Developer

The clearest difference is update cadence: MailJerry at monthly against eIAM Developer's every 13 months. eIAM Developer's advantage is iOS requirement (14.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MailJerry ships an update monthly, eIAM Developer every 13 months. The most recent releases landed on September 7, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | MailJerry | eIAM Developer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/mailjerry/id1559904096/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 13 months |
| Monetization | Free | — |
| Size | 49 MB | 3 MB |
| Requires iOS | 16.6 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CODE black Software GmbH](https://appshunter.io/developer/1292595503) | [Ubique Innovation AG](https://appshunter.io/developer/404813835) |

## What reviewers say

### MailJerry

[App page](https://appshunter.io/ios/app/mailjerry/id1559904096)

Effortlessly migrate your emails and mailboxes to a new provider without needing IT expertise. This tool securely copies your entire folder structure, synchronizes accounts after migration, and works with all major email services.

**Highlights:** Mailbox Sync, Migrate Emails & Folders, Works with All Providers, Bulk Migration, No Duplicates, Mailbox Health Check, 100% Secure

**Features:** Vision Pro support

**In-app purchases:** none


### eIAM Developer

[App page](https://appshunter.io/ios/app/eiam-developer/id6443578396)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MailJerry free?

MailJerry is free to download, with no in-app purchases.

### Is eIAM Developer free?

eIAM Developer is free to download, with no in-app purchases.

### Do MailJerry or eIAM Developer have ads?

Neither MailJerry nor eIAM Developer shows ads.

### Which is updated more often, MailJerry or eIAM Developer?

MailJerry ships an update monthly, and eIAM Developer every 13 months. Most recently, MailJerry was updated on September 7, 2026 and eIAM Developer on September 9, 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.*