# TempBox vs Sumikaru

The clearest difference is update cadence: Sumikaru at weekly against TempBox's every 2 weeks. Sumikaru also leads on iOS requirement (16.4 vs 18.0). TempBox's advantage is device support (3 vs 1). On price, ads and in-app purchases there is nothing between them.

Both are free to download. TempBox sells 3 one-off in-app purchases and Sumikaru sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

TempBox ships an update every 2 weeks, Sumikaru weekly. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | TempBox | Sumikaru |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (7 ratings)](https://appshunter.io/ios/app/tempbox-temp-mail/id6575345984/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 54.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 31 MB | 51 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Rishi Singh](https://appshunter.io/developer/1757566879) | [Yushin Shimizu](https://appshunter.io/developer/6804118206) |

## What reviewers say

### TempBox

[App page](https://appshunter.io/ios/app/tempbox-temp-mail/id6575345984)

Generate instant temporary email addresses to protect your privacy and keep your real inbox clean. Receive emails without registration, manage multiple addresses, and test services securely. Offers complete privacy with zero data collection and an open-source code base.

**Highlights:** Instant temporary email creation, Complete privacy protection, Real-time email delivery, Multiple email address management, Smart email organization, Open-source code base

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |


### Sumikaru

[App page](https://appshunter.io/ios/app/sumikaru/id6804118204)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sumikaru Pro（月額） | $1.99 | per month |
| Sumikaru Pro（年額） | $19.99 | per year |


## Frequently asked questions

### Is TempBox free?

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

### Is Sumikaru free?

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

### Do TempBox or Sumikaru have ads?

Neither TempBox nor Sumikaru shows ads.

### Which is updated more often, TempBox or Sumikaru?

TempBox ships an update every 2 weeks, and Sumikaru weekly. Most recently, TempBox was updated on October 30, 2026 and Sumikaru 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.*