Comparison

Tofu Authenticator vs SimpleLogin

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

Head to head
About

Tofu Authenticator

This open-source app generates one-time passwords for two-factor authentication, enhancing online account security. It supports various services and algorithms, working offline for convenient access.

Highlights
  • Generates one-time passwords
  • Supports HOTP and TOTP algorithms
  • Works offline and in airplane mode
  • Scans QR codes for easy setup
  • Searches accounts by name
  • Stores data in iOS keychain
Features
Read full description

An easy-to-use, open-source two-factor authentication app designed specifically for iOS. Tofu generates one-time passwords to help you protect your online accounts. These passwords are used together with your normal password when you sign into services like Google, Facebook, Dropbox, Amazon, and GitHub. Tofu works with all services that provide two-factor authentication using the HOTP and TOTP algorithms. It does not require a network or cellular connection and can be used in airplane mode. Features include: - Scan the QR code your issuer provides to automatically add your account. - Search your accounts by name to quickly find the one you're looking for. - Support for both counter-based and time-based one-time passwords with 6 or 8 digits using the SHA1, SHA256, and SHA512 algorithms. - Requires no network or cellular connection and can be used in airplane mode. - All your account details are safely stored in the iOS keychain. Tofu is open source and free software licensed under the ISC license. The source code is available for review and modification on https://github.com/calleerlandsson/tofu.

About

SimpleLogin

Create temporary, anonymous email addresses to protect your personal inbox from spam and tracking. Forward emails to your main inbox and reply from your alias, keeping your real address hidden. Easily disable aliases if they receive unwanted messages.

Highlights
  • Create anonymous email aliases
  • Forward emails to personal inbox
  • Reply from alias address
  • Send emails from alias
  • Disable aliases to block spam
  • PGP encryption support
  • Use custom domains
Features
Read full description

Tired of spam and being tracked online through your personal email address? Email aliases are the solution. SimpleLogin provides you with a different anonymous email address (aka email alias) whenever you sign up for a new online service, allowing you to hide your personal email address from spammers. Emails sent to an alias are forwarded to your personal inbox. Want to reply to a forwarded email? Just hit reply and the response will be sent from your alias, keeping your personal address hidden. Not only can an alias receive emails, it can also send emails. An alias is a full-fledged email address. You can create a new alias when subscribing to a newsletter, signing up for a new account, or giving your email to someone you don't trust. If you receive spam to that address, simply disable the alias. When you give away your personal email online, there is a good chance it will end up in the hands of a spammer or hacker. SimpleLogin acts as a firewall to protect your personal inbox. Over 2 million SimpleLogin aliases have been created, making SimpleLogin one of the world’s best-known email alias services. --- Why SimpleLogin? - Generous free plan: unlike other alias services, you can create up to 10 aliases using the free plan, and there's no cap on bandwidth or the number of replies and sends. We also offer a 7day free trial of our premium service, that includes all advanced features, when you sign up. - SimpleLogin is the world’s most advanced email alias service, supporting multiple mailboxes, PGP encryption, and in-app alias management. - 100% open source and independently audited for security. SimpleLogin is verified to be secure and reliable. - Private by default. SimpleLogin forwards your emails, but does not save them. We use secure infrastructure in Switzerland, operated by Proton Mail, the world's largest encrypted email service. With a premium plan, you can: - Add your own domain and create aliases such as reddit@my-domain.com or twitter@my-domain.com. You can also enable catch-all email addresses for your domain. - If you don't have a domain, use a subdomain provided by SimpleLogin instead. - Send emails from aliases: not only can you can reply to a forwarded email, you can also initiate a new conversation from your alias. - If you have several mailboxes, you can add them into SimpleLogin and choose which one to use when creating an alias. - If your mailbox supports PGP, enable PGP on SimpleLogin, and emails will be encrypted by SimpleLogin before being forwarded to your mailbox. What others say about SimpleLogin: “SimpleLogin is a comprehensive disposable email address solution that covers just about every conceivable feature, and it’s easy to use”. PCMag Twitter: https://twitter.com/simple_login Reddit: https://www.reddit.com/r/simplelogin Open Source: https://github.com/simple-login Privacy policy: https://simplelogin.io/privacy/ Terms and conditions: https://simplelogin.io/terms/ Security audit: https://simplelogin.io/blog/security-audit/

Screenshots

Tofu Authenticator4 screens
SimpleLogin4 screens

Verdict

The call

The clearest difference is in-app purchases: Tofu Authenticator at none against SimpleLogin's 2. Tofu Authenticator also leads on iOS requirement (13.0 vs 15.0). SimpleLogin's advantage is rating (4.9 vs 4.6) and update cadence (every 5 weeks vs every 4 months). On price, review sentiment, ads 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. SimpleLogin sells 2 in-app purchases, starting at $3.99 per month. Tofu Authenticator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SimpleLogin holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: SimpleLogin has 1.3K ratings behind it against 99, so its average is the more settled of the two. Written reviews point the same way: 78% of Tofu Authenticator's written reviews are positive against 84% of SimpleLogin's.

UpkeepUpdate frequency

Tofu Authenticator ships an update every 4 months, SimpleLogin every 5 weeks. Both last shipped on October 15, 2026.

Scorecard6 real differences · 4 level
Tofu Authenticator versus SimpleLogin: the parameters behind the verdict, then further details
ParameterTofu AuthenticatorSimpleLogin
PriceFreeFree
Rating4.6 (99 ratings)4.9 (1.3K ratings) — better
Positive reviews77.9% of reviews83.9% of reviews — better
Number of ratings991.3K — better
Update frequencyEvery 4 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.0
Further details — not scored
Size2 MB11 MB
Age rating4+4+
DeveloperCalle LuksProton AG

Customer experience

Tofu Authenticator

All ratings99 ratings
Positive91.9%
Neutral0.0%
Negative8.1%
Written reviews68 reviews
Positive77.9%
Neutral10.3%
Negative11.8%

SimpleLogin

All ratings1,318 ratings
Positive96.9%
Neutral1.1%
Negative2.0%
Written reviews286 reviews
Positive83.9%
Neutral5.2%
Negative10.8%

Bugs and requests

Tofu Authenticator

Reported bugs

4 issues
  • Stored codes did not restore after factory reset
  • Did not save in iCloud keychain as claimed
  • Codes got out of sync
  • Backend app changes but nothing since June 1st, 2024

Requested features

17 requests
  • Dark mode app icon
  • Export/backup functionality
  • Viewable/exportable TOTP secrets
  • iCloud backup/sync option
  • Manual backup option
Show 12 more
  • QR code export feature
  • Issuer icon for Wyze app
  • Face ID/Touch ID/Biometric authentication for app access
  • Password protection for the app
  • Custom icons or colors for accounts
  • Larger font for website names
  • Apple Watch module
  • Donation option
  • JSON export of tokens
  • Manual icon selection for manually entered items
  • French language version
  • PIN lock option

SimpleLogin

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Tofu Authenticator

No in-app purchases

2 purchases

SimpleLogin

Subscriptions2
  • Premium (monthly)$3.991 Month
  • Premium (yearly)$39.991 Year

Questions

Is Tofu Authenticator free?
Tofu Authenticator is free to download, with no in-app purchases.
Is SimpleLogin free?
SimpleLogin is free to download, with in-app purchases available.
Which has better reviews, Tofu Authenticator or SimpleLogin?
SimpleLogin is rated higher. Tofu Authenticator averages 4.6 out of 5 from 99 ratings, while SimpleLogin averages 4.9 from 1.3K ratings.
Do Tofu Authenticator or SimpleLogin have ads?
Neither Tofu Authenticator nor SimpleLogin shows ads.
Which is updated more often, Tofu Authenticator or SimpleLogin?
Tofu Authenticator ships an update every 4 months, and SimpleLogin every 5 weeks. Most recently, Tofu Authenticator was updated on October 15, 2026 and SimpleLogin on October 15, 2026.

Other comparisons