ShieldMail vs Sumikaru
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ShieldMail
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ShieldMail is a Safari extension that protects your real email when signing up for websites. * One tap, signup done Tap the shield icon next to the email field on any signup page, and a temporary email address is automatically filled in. No need to expose your real email. * Auto-receive verification codes Automatically detects and displays verification codes sent by websites. Extracts any format — 6-digit numbers, alphanumeric, hyphenated codes, and more. * Auto-open verification links For sites that send verification links instead of codes, the link opens automatically in a new tab. * Complete privacy - Email content is never stored - OTP and links kept in memory for only 10 minutes, then auto-deleted - Temporary email addresses expire after 1 hour - No passwords or personal data collected * Free / Pro plans - Free: 1 temporary email per day - Pro ($0.99/mo): 20 per day + priority support * 6 languages supported 한국어, English, 日本語, 简体中文, Français, हिन्दी Privacy Policy: https://moonkj.github.io/shieldmail/privacy.html Terms of Use: https://moonkj.github.io/shieldmail/terms.html
Sumikaru
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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
Verdict
ShieldMail and Sumikaru are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. ShieldMail sells 1 in-app purchase, starting at $0.99 per month 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.
| Parameter | ShieldMail | Sumikaru |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 1 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | kyeongju Moon | Yushin Shimizu |
In-app purchases
ShieldMail
- ShieldMail Pro$0.991 Month
Sumikaru
- Sumikaru Pro(月額)$1.991 Month
- Sumikaru Pro(年額)$19.991 Year







