Pen pal app comparison

A modern InterPals alternative

Matched by interests. Private until you both agree.

InterPals is one of the oldest pen pal directories online. Slowletter takes a different approach: instead of browsing an open list of profiles, you write a letter about what matters to you, and it reaches someone compatible. Your identity stays private until both sides accept.

Free to join · No paywall · Private until mutual accept

FreeNo paywall
PrivateUntil you agree
MatchedBy interests

In short

Slowletter is a strong InterPals alternative if you want interest-based matching instead of an open profile directory. You are matched through letters, your identity stays private until both people accept, and it is free with no paywall. This reduces the fake-profile and scam exposure that comes with public directories.

Comparison

Slowletter vs InterPals

FeatureSlowletterInterPals
How you connectLetters matched by interestsBrowse an open profile directory
IdentityPrivate until mutual acceptPublic profile visible to all
MatchingBy interests and intentManual search and messaging
CostFree, no paywallFree with ads / optional upgrade
After lettersReal-time chat unlockedOpen messaging from the start
InterfaceModern web app, any deviceLong-established, classic design

Comparison based on publicly available information and user reviews as of 2026. Features may change.

The Slowletter approach

Why people try Slowletter instead

No open directory to scrape

InterPals lists public profiles anyone can browse and message. Slowletter matches you through letters, so there is no directory for spammers or scammers to farm.

Private until you both agree

Your identity is revealed only after mutual acceptance. Words come first, and you decide who gets to know more about you.

Matched by what you care about

Instead of searching a list and hoping for a reply, you write about your interests and Slowletter finds someone who shares them. The connection starts with something in common.

Free, with no paywall

Slowletter is free to join and free to use core features. No premium gate stands between you and your pen pal.

Letters that can become conversation

After enough letters, Slowletter unlocks real-time chat, so a good connection is not stuck in one format forever.

A modern, focused experience

Slowletter runs in your browser on any device, with a clean, letter-first interface built for depth rather than volume.

Who it is for

Slowletter works for people who want

Pen pals matched by interests
Language exchange partners
Safer cross-cultural correspondence
International friendships
Privacy until they are ready
Meaningful slow correspondence

FAQ

Frequently asked questions

It depends on what you want. If you want a modern, letter-first pen pal experience with interest-based matching and identity that stays private until both people agree, Slowletter is a strong alternative. Slowly and HelloTalk are other popular options, though each works differently.

Common reasons in recent reviews include concerns about fake profiles and scam messages, moderation that relies heavily on automation, and an interface that feels dated. Some people also want matching based on shared interests rather than browsing an open directory of profiles.

InterPals is a large profile directory where you browse and message anyone. Slowletter is letter-first: you write about what matters to you, and it is matched to someone compatible. Your identity stays private until both sides accept, which removes a lot of the profile-farming that enables spam and scams.

Slowletter is designed to reduce common risks. Because you are matched through letters rather than a public profile, there is no open directory to scrape, and identity is revealed only after mutual acceptance. No platform can guarantee safety, so we also publish safety tips for meeting pen pals online.

Yes. Slowletter is free to join and free to use core features. There is no paywall between you and your pen pal, and no premium currency to buy.

Yes. Many pen pal enthusiasts use more than one platform. Different apps attract different communities, so it is common to keep an InterPals account while trying a more curated, letter-first app like Slowletter.

Try Slowletter today

Write your first letter. Get matched with someone who shares your interests. No paywall, no open directory, just genuine connection.