Comparison

TempBox vs Sumikaru

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

TempBox

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
Read full description

Protect Your Privacy with Instant Temporary Email Addresses TempBox is the ultimate temporary email app that keeps your real inbox clean and your personal information secure. Generate unlimited temporary email addresses in seconds and receive emails without compromising your privacy. No ads, no tracking, no data collection Why TempBox? Instant Email Creation Create temporary email addresses with a single tap. No registration, no personal information required. Get your disposable email in under 3 seconds. Complete Privacy Protection Shield your real email from spam and promotional emails Sign up for services without revealing your identity Test websites and apps safely Protect yourself from data breaches Real-Time Email Delivery Receive emails instantly in your temporary inbox. Read, download attachments, and manage messages with our intuitive interface. Multiple Email Addresses Create and manage multiple temporary emails simultaneously. Perfect for testing, online shopping, or signing up for different services. Features Smart Email Management Organize emails with read/unread status Search through your temporary messages Export important emails before deletion Attachment viewer for all file types Perfect For: Website Testing Test registration flows, email verification, and newsletter signups. Privacy-Conscious Users Protect your identity when signing up for new services or downloading apps. Developers & QA Teams Test email functionality and user registration flows efficiently. Contest & Giveaway Entries Participate in online contests without spam consequences. Security First Zero Data Collection: We don't store your personal information No Account Required: Start using immediately without registration Open Source code base Seamless iOS Experience Native iOS Design Beautiful, intuitive interface that follows iOS design guidelines. Dark mode support and accessibility features included. Share Integration Easily share temporary email addresses through iOS share sheet to any app.

About

Sumikaru

Features
Read full description

Sumikaru lets you create and manage multiple real email addresses from a single account — one for every service you sign up for. Great for: • Anyone who doesn't want to expose their main email address every time they sign up for a shopping site or online service • Anyone getting more spam and wanting to split addresses by purpose • Tracking which address you used for which service with the built-in "Registered Services" notes • Push notifications for new mail Every address you create is a real mailbox that can actually send and receive email — not just a disposable alias. Use it as a throwaway address, or to keep your everyday mail organized by purpose. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sumikaru.com/legal/privacy

Screenshots

TempBox4 screens
Sumikaru3 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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

Scorecard3 real differences · 7 level
TempBox versus Sumikaru: the parameters behind the verdict, then further details
ParameterTempBoxSumikaru
PriceFreeFree
Rating3.4 (7 ratings) — better—
Positive reviews54.5% of reviews—
Number of ratings7 — better—
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS18.016.4 — better
Further details — not scored
Size31 MB51 MB
Age rating4+4+
DeveloperRishi SinghYushin Shimizu

In-app purchases

3 purchases

TempBox

One-time3
  • Small Tip$0.99
  • Medium Tip$2.99
  • Large Tip$4.99
2 purchases

Sumikaru

Subscriptions2
  • Sumikaru Pro(月額)$1.991 Month
  • Sumikaru Pro(年額)$19.991 Year

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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