# ArkEmail vs OpenInbox

The clearest difference is in-app purchases: ArkEmail at none against OpenInbox's 5. ArkEmail also leads on ads (none vs shown). OpenInbox's advantage is update cadence (every 5 days vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. OpenInbox sells 5 in-app purchases, starting at $7.99 per month. ArkEmail asks for nothing beyond the download.

ArkEmail ships an update every 2 months, OpenInbox every 5 days. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | ArkEmail | OpenInbox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 days** |
| Size | 39 MB | 45 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [ArkrA LLC](https://appshunter.io/developer/1770422041) | [mohammad wassfi mahmoud awad](https://appshunter.io/developer/6773504818) |

## What reviewers say

### ArkEmail

[App page](https://appshunter.io/ios/app/arkemail/id6733223603)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is ArkEmail free?

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

### Is OpenInbox free?

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

### Do ArkEmail or OpenInbox have ads?

OpenInbox shows ads; ArkEmail does not.

### Which is updated more often, ArkEmail or OpenInbox?

ArkEmail ships an update every 2 months, and OpenInbox every 5 days. Most recently, ArkEmail was updated on October 7, 2026 and OpenInbox on October 17, 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.*