# OpenInbox vs eSIM Subscription & Manager

The clearest difference is ads: eSIM Subscription & Manager at none against OpenInbox's shown. OpenInbox's advantage is iOS requirement (15.1 vs 17.6). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. OpenInbox sells 5 in-app purchases, starting at $7.99 per month and eSIM Subscription & Manager sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

OpenInbox ships an update every 5 days, eSIM Subscription & Manager every 3 days. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | OpenInbox | eSIM Subscription & Manager |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 3 days** |
| Size | 45 MB | 13 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [mohammad wassfi mahmoud awad](https://appshunter.io/developer/6773504818) | [Thi Phuong Huynh](https://appshunter.io/developer/1896679799) |

## What reviewers say

### OpenInbox

[App page](https://appshunter.io/ios/app/openinbox-temp-email/id6773504816)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $7.99 | per month |
| Business Monthly | $17.99 | per month |
| Premium | $34.99 | per month |
| Business Yearly | $159.00 | per year |
| 7 Days Pass | $1.99 | one-time |


### eSIM Subscription & Manager

[App page](https://appshunter.io/ios/app/esim-subscription-and-manager/id6775221983)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Membership Weekly | $4.99 | per 7 days |
| Premium Membership Monthly | $9.99 | per month |


## Frequently asked questions

### Is OpenInbox free?

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

### Is eSIM Subscription & Manager free?

eSIM Subscription & Manager is free to download, with in-app purchases available.

### Do OpenInbox or eSIM Subscription & Manager have ads?

OpenInbox shows ads; eSIM Subscription & Manager does not.

### Which is updated more often, OpenInbox or eSIM Subscription & Manager?

OpenInbox ships an update every 5 days, and eSIM Subscription & Manager every 3 days. Most recently, OpenInbox was updated on October 31, 2026 and eSIM Subscription & Manager on October 24, 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.*