Secret Inbox vs MailBolt
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Secret Inbox
Create and manage unique masked email addresses for every online service. Protect your primary inbox from spam by blocking or deleting unwanted masked addresses. Offers quick creation, privacy management, and search capabilities.
- Generate masked emails instantly
- Block and delete spam addresses
- Search Fastmail inbox by masked email
- Lock Screen widget for quick access
- Siri Shortcuts integration
- Mac menu bar access
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Secret Inbox is the native companion app for managing your Fastmail masked email addresses on iPhone, iPad, and Mac. Stop giving away your real email address. Create a unique masked email for every website, newsletter, or service you sign up for. When one gets spammed, simply block or delete it — your real inbox stays clean. Create Emails Instantly ∙ Generate new masked emails with a single tap/click. Add custom domains and descriptions to stay organized. Copy any address to your clipboard and paste it wherever you need. Manage Your Privacy ∙ View all your masked emails in one place. Block addresses that receive spam without deleting them. Bulk select and delete multiple emails at once when you're ready to clean house. Built for Speed ∙ Lock Screen widget to copy emails without opening the app ∙ Siri Shortcuts: "Hey Siri, create a new masked email" ∙ Mac keyboard shortcuts for instant creation (customizable) ∙ Menu bar access on Mac for quick lookups Search Your Mail ∙ Tap any masked email to search your Fastmail inbox for messages sent to that address. See exactly what's coming through. Fully Accessible ∙ Complete VoiceOver support with descriptive labels, state announcements, and reduced motion options. Your Data Stays Private ∙ Secure OAuth login directly with Fastmail. No third-party tracking. No data collection. Your credentials are stored safely in your device's keychain. Requires a Fastmail account with masked email feature.
MailBolt
Instantly create temporary email addresses to protect your privacy and block spam. Securely receive emails and attachments without exposing your personal inbox. Ideal for signups, verifications, and anonymous online use.
- Instant temp mail generation
- Disposable mail protection
- Anonymous and secure
- Receive emails and attachments
- Unlimited disposable mail
- Spam-free emails
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MailBolt: Temporary Email gives you a simple way to create temporary email addresses when you don't want to share your personal inbox. Get a ready-to-use address in seconds, receive incoming messages and manage temporary inboxes for online sign-ups, verification emails, free trials and other activities. CREATE A TEMPORARY EMAIL INSTANTLY Create a temporary email with one tap and get a ready-to-use address in seconds. The home dashboard shows your active email, inbox count and remaining email lifetime in one clear view, so you can quickly access everything you need. MANAGE YOUR TEMPORARY INBOX View incoming messages in a clean and organized inbox. See sender names, subjects, received times and attachments at a glance. Open emails to read their details and refresh the inbox whenever you want to check for new messages. KEEP YOUR PERSONAL EMAIL SEPARATE Use a temporary email when you prefer not to share your everyday address with websites and online services. MailBolt helps separate temporary online activity from your primary inbox while providing a simple, privacy-focused email experience. MANAGE MULTIPLE EMAIL ADDRESSES Create and manage several temporary email addresses from one app. The email switcher lets you move between active inboxes quickly, making it easier to keep different online activities organized. TRACK EMAIL EXPIRATION A clear countdown timer shows how much time remains for your active email address. Auto-delete information helps you understand when a temporary inbox will expire, so you always know the status of your active address. SEARCH EMAILS AND HISTORY Find messages quickly by searching your inbox using sender names or subjects. Email History also keeps recently used temporary addresses available, making it easier to return to an address you've used before. RECEIVE VERIFICATION EMAILS Use your temporary inbox for website registrations, app sign-ups, account verification, free trials, newsletters and other services that require an email address. Receive incoming messages without giving out your primary email. VIEW EMAIL ATTACHMENTS Open supported attachments directly from received messages. Improved email details and attachment previews make it easier to view available images and files while keeping message information organized. STAY UPDATED ON NEW MAIL Unread email counts and new mail indicators help you notice incoming messages quickly. When an inbox has no messages, improved empty states provide clear guidance and make the next action easy to understand. A CLEAN AND SIMPLE EMAIL EXPERIENCE MailBolt features clean typography, rounded icons, improved spacing and simple navigation across Home, Inbox, Addresses, History and Settings. The refreshed interface keeps temporary email management straightforward and easy to navigate. DARK MODE Switch to a comfortable dark theme for low-light environments. Email content, inbox information and important controls remain easy to view while the interface maintains a clean and focused appearance. PRIVACY AND SPAM PROTECTION Temporary email can reduce the need to share your personal address with websites and online services. MailBolt provides clear privacy and spam-protection information to help you manage temporary online communication with greater control. MailBolt is useful whenever you need a temporary address for an online registration, account verification, free trial, newsletter sign-up, website testing or another situation where you prefer not to use your everyday email. Create an address, copy or share it, receive messages, switch between inboxes, search your emails and track expiration from one convenient app. Download MailBolt: Temporary Email and create a temporary inbox whenever you need a convenient way to receive email without using your primary address. Privacy Policy : https://sites.google.com/view/disposibletempmail/home Apple Terms Of Use : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Secret Inbox at every 2 weeks against MailBolt's every 2 months. Secret Inbox also leads on rating (5.0 vs 4.7). MailBolt's advantage is ratings volume (13 vs 4) and iOS requirement (15.0 vs 26.0). On price, review sentiment, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Secret Inbox holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 4 and 13 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Secret Inbox ships an update every 2 weeks, MailBolt every 2 months. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.
| Parameter | Secret Inbox | MailBolt |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.7 (13 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 | 13 — better |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, Mac | iPhone, iPod |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 50 MB |
| Age rating | 4+ | 17+ |
| Developer | Cleanbit, MB | Dhaval Panasara |
Customer experience
Secret Inbox
MailBolt
In-app purchases
Secret Inbox
No in-app purchases
MailBolt
No in-app purchases







