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
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
| Feature | Slowletter | InterPals |
|---|---|---|
| How you connect | Letters matched by interests | Browse an open profile directory |
| Identity | Private until mutual accept | Public profile visible to all |
| Matching | By interests and intent | Manual search and messaging |
| Cost | Free, no paywall | Free with ads / optional upgrade |
| After letters | Real-time chat unlocked | Open messaging from the start |
| Interface | Modern web app, any device | Long-established, classic design |
Comparison based on publicly available information and user reviews as of 2026. Features may change.
The Slowletter approach
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.
Your identity is revealed only after mutual acceptance. Words come first, and you decide who gets to know more about you.
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.
Slowletter is free to join and free to use core features. No premium gate stands between you and your pen pal.
After enough letters, Slowletter unlocks real-time chat, so a good connection is not stuck in one format forever.
Slowletter runs in your browser on any device, with a clean, letter-first interface built for depth rather than volume.
Who it is for
FAQ
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.