Comparison

mail.com vs CheckSite

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

Head to head
About

mail.com

Manage your emails and cloud storage from a single app. Receive instant notifications for new messages and access your contacts and documents on the go. Secure your account with PIN or biometric authentication.

Highlights
  • Unified inbox for all email addresses
  • 2GB cloud storage
  • Push notifications
  • PIN or biometric authentication
  • Automatic photo backup
  • Contact synchronization
Features
Read full description

The mail.com mail app for iPhone and iPad lets you take your email and cloud wherever you go. The mail.com mail app brings comprehensive functionality to your mobile device. Perfect for iPhone and iPad users, the email app from mail.com puts a wealth of productivity tools directly into your hand. Check all your email addresses and view your cloud documents from one centralized mailbox – wherever you go. Enable push notifications to ensure you never miss an important message again. Discover the many features of the mail.com email app and get your emails whenever you need them, wherever you are. What customers are saying: "Everything you could wish for. Simply open, read, delete, done. No frills or 1000 options to subscribe or play. Thanks" "Good stuff. The way email should work today!" "Cool. I have been using this app for such a long time and I would not change." "Best email account in the world. Thank you" "Great app! Convenient, easy to navigate" Reliable and secure e-mail The mail.com email app is optimized for use with a mail.com email account by 1&1. With an mail.com email account you can select from our 100+ email domains, like @email.com and @usa.com. Ideal for business emails, our mail app lets you set personalized notifications and use many organizational features that our webmail solution provides. This means you can easily access your mail.com contacts and synchronize them with the contacts on your iPhone. The mail.com email client for iOS enabled devices also includes powerful security features to ensure your communications are never compromised. The email app for iOS is simple to install and intuitive to use. You can even make it the default mail app on your iPhone. This makes managing your mails a breeze – giving you the opportunity to write, reply and organize your mail wherever you go. Syncing your inbox between multiple devices is also possible, allowing you to move seamlessly from your iPhone to your iPad without breaking your concentration. Cloud storage and emails in one With mail.com freemail you also get 2GB of reliable cloud storage. Store e-mail attachments, photos, documents and more in your mail.com Cloud and your online file manager is right at your fingertips in this combined e-mail and cloud app. The app will automatically sync not only every message in your inbox but all the files in your cloud storage, so you can access them whenever and wherever you are online. Just open the app and get started! You can even activate automatic photo backup from your iPhone or iPad to your mail.com Cloud and keep your precious memories safe in our secure online storage. All you need to do is sign up for a freemail account from mail.com and download the app to enjoy these gr eat features: • iPhone optimized • Convenient push notifications • Increased security through PIN or biometric authentication • Mobile access to your mail.com contacts • Integrated cloud with automatic photo backups • Customizable interface • 100+ email domains available to create email address of your choice • Sync automatically with mail.com web browser email client • Set as default mail app on iPhone or iPad • Convenient folder and file manager in Cloud 100+ email domains One of the best things about using the mail.com app as your iPhone email app or iPad email app is creating unique email addresses. Customize your email address with our 100+ email domains. In addition to our @mail.com domain, here are just five of the available email domains that we offer: 1 @email.com domain 2 @usa.com domain 3 @post.com domain 4 @techie.com domain 5 @dr.com domain Feedback welcome! We’d love to hear what you think and we welcome your feedback and user experiences with the iPhone and iPad app. Contact us today and help us improve your email experience. Terms & Conditions: https://www.mail.com/company/terms/

About

CheckSite

Features
Read full description

CheckSite: find potential problems in HTML and CSS When making websites, you need to keep an eye on two types of standards: the official web standards, which are checked by the W3C Validator, and the unofficial standard of making sure that your website actually works as intended on all commonly used browsers. The advantage of using CheckSite is that it checks both, and that it does it automatically for all pages within your website. When done, CheckSite will produce an overview of all potential issues found in all pages, including an easy-to-read summary. Main features • CheckSite is fast and user friendly • Checks against both web standards, known issues, and best practices • Finds links to other pages in your website and checks them as well • Gives an easy-to-read summary of the results The checks • Browser compatibility (e.g. does the page use constructs that are known to cause problems in certain browsers?) • SEO (e.g. does the page adhere to SEO guidelines?) • User experience (e.g. does the page have a favicon?) • Internationalization (e.g. does the page use UTF-8 encoding?) If you like our app, please rate it in the Mac App Store so that we can use your feedback and keep creating updates.

Screenshots

mail.com4 screens
CheckSite2 screens

Verdict

The call

The clearest difference is in-app purchases: CheckSite at none against mail.com's 11. CheckSite also leads on ads (none vs shown) and iOS requirement (14.0 vs 18.0). mail.com's advantage is update cadence (fortnightly vs every 13 months). On price and device support 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. mail.com sells 6 in-app purchases, starting at $0.99 per month. CheckSite asks for nothing beyond the download.

UpkeepUpdate frequency

mail.com ships an update fortnightly, CheckSite every 13 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

Scorecard4 real differences · 6 level
mail.com versus CheckSite: the parameters behind the verdict, then further details
Parametermail.comCheckSite
PriceFreeFree
Rating4.7 (105K ratings) — better—
Positive reviews75.5% of reviews—
Number of ratings105K — better—
Update frequencyFortnightly — betterEvery 13 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.014.0 — better
Further details — not scored
Size356 MB1 MB
Age rating4+17+
Developer1&1 Mail & Media Inc.Colorize

Bugs and requests

mail.com

Reported bugs

4 issues
  • Emails not loading properly
  • Inability to delete or move emails
  • Sync issues between app and web version
  • Frequent app crashes or freezes

Requested features

5 requests
  • Improved email organization and folder management
  • Option to disable ads in free version
  • Enhanced search capabilities
  • Ability to attach various file types
  • Customizable email signatures

CheckSite

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

mail.com

Subscriptions6
  • 25 GB3 variants$0.991 Month
  • adfree App$1.991 Month
  • 150 GB2 variants$2.991 Month
Show 3 more
  • 250 GB2 variants$3.991 Month
  • mail.com Premium$3.991 Month
  • mail.com Premium$29.991 Year
None

CheckSite

No in-app purchases

Questions

Is mail.com free?
mail.com is free to download, with in-app purchases available.
Is CheckSite free?
CheckSite is free to download, with no in-app purchases.
Do mail.com or CheckSite have ads?
mail.com shows ads; CheckSite does not.
Which is updated more often, mail.com or CheckSite?
mail.com ships an update fortnightly, and CheckSite every 13 months. Most recently, mail.com was updated on November 1, 2026 and CheckSite on October 26, 2026.

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