Email Monster vs SimpleLogin: features, pricing, limits
Last reviewed: 25 September 2026
SimpleLogin wins if you want open source code, reply from alias, and browser extensions backed by Proton. Email Monster wins if you want a bigger free tier and a lower annual price with a newsletter digest. SimpleLogin's free plan gives 10 aliases, less than Email Monster's unlimited free aliases.
Both services create disposable forwarding addresses that hide your real inbox from the sites you sign up for. SimpleLogin is owned by Proton and built around open source code with reply from alias support, while Email Monster is a lighter, cheaper service built around a personal subdomain and a newsletter digest.
Feature comparison
| Criteria | Email Monster | SimpleLogin |
|---|---|---|
| Price (paid) | $6.99/year or $2.99/month | $36/year or $4/month |
| Free tier | Yes, 40 forwarded emails a month | Yes, $0/month |
| Alias limit | Unlimited, made up on first use | 10 aliases on the free plan |
| Custom domain | No, personal subdomain only | Yes, unlimited custom domains on Premium |
| Reply from alias | No | Yes, including starting a new email |
| Sender blocking | Yes, per alias | Yes, per alias |
| Newsletter digest | Yes, weekly or daily | No |
| Browser extension | No | Yes, Chrome, Firefox, Safari, Edge |
| Open source | No | Yes |
| Jurisdiction | Not published | Proton AG, Switzerland |
| Best for | Unlimited free aliases plus digests | Reply from alias, open source, Proton users |
Facts verified on 25 September 2026 against SimpleLogin's public pricing page.
Where SimpleLogin wins
SimpleLogin is genuinely open source, is owned by Proton AG and registered in Switzerland, and supports replying from an alias, or even starting a new email from one, which Email Monster does not offer. Premium also includes unlimited custom domains and browser extensions across every major browser.
Where Email Monster wins
Email Monster's free plan is not capped at 10 aliases; it allows unlimited aliases with 40 forwarded emails a month. Premium is $6.99 a year, cheaper than SimpleLogin's $36 a year, and adds a newsletter digest that SimpleLogin does not offer.
Who should pick which
Pick SimpleLogin if replying from an alias, open source code, or a Proton connected account matter most to you, and you are comfortable with a 10 alias free cap. Pick Email Monster if you want a larger free tier, a lower annual price, and a newsletter digest included.
Frequently asked questions
How many free aliases does SimpleLogin offer?
SimpleLogin's free plan is capped at 10 aliases. Email Monster's free plan allows unlimited aliases with a cap of 40 forwarded emails a month instead of an alias count limit.
Can I reply from an alias with either service?
SimpleLogin supports replying from an alias, and even starting a new email from one. Email Monster forwards mail to your real inbox but does not currently support replying from the alias address.
Which is cheaper, Email Monster or SimpleLogin Premium?
Email Monster costs $6.99 a year. SimpleLogin Premium costs $36 a year, or $4 billed monthly. Email Monster is significantly cheaper and adds newsletter digest bundling that SimpleLogin does not have.
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No credit card required. Unlimited aliases on your own subdomain.