If you've spent time on the pen-pal internet, you've almost certainly heard of Slowly. It's the app that popularised the idea of digital letters that take hours, sometimes days, to arrive, based on the real-world distance between you and your pen pal. The delivery-delay mechanic is clever, the stamp-collecting system is charming, and for many people it works wonderfully.
But "many people" isn't everyone. Slowly's community is enormous, which makes it a mixed bag: some users report ghosting after a few letters, others find the interface confusing, and a handful run into authenticity concerns about whether their correspondent is who they claim to be. If you've been there, or if you're just curious whether something suits you better, here's an honest look at the alternatives.
Why people look for Slowly alternatives
Before listing apps, it helps to know what's driving the search. The most common reasons are:
- Ghosting and low response rates. Slowly's large user base means plenty of people sign up out of curiosity and then drift away. If your letter sits unanswered for weeks, it stings.
- A confusing UI. Slowly's "hide" and "remove" functions work differently than most people expect. At least one documented case involved a user unknowingly missing 17 unread messages because they misunderstood what "remove" did.
- Safety uncertainty. Slowly is global and very open. While the app has reporting and blocking, some users feel the community curation isn't tight enough.
- Wanting something different, not necessarily better. Some people want handwriting, voice messages, or a smaller, calmer community. Slowly is built around text; it doesn't do everything.
None of these are dealbreakers for everyone. But if one resonates with you, read on.
The real alternatives, honestly assessed
Snailpost (the closest alternative, and the one I'd recommend first)
If you only try one app on this list, make it Snailpost.
Snailpost is the closest thing to Slowly that exists right now, because it keeps the mechanic that made Slowly special and fixes the parts that wear people down. Letters travel at real flight speed, so a letter from Delhi to Lyon covers 6,585 km and lands about nine hours later. You write, you send, and then you genuinely wait for the post, exactly as you did on Slowly.
What it does differently:
- Kindred matching instead of a firehose. A postmaster pairs you with one person you're actually likely to click with, and shows you the match strength, so you're not scrolling thousands of half-dormant profiles hoping someone writes back. This is the single biggest fix for the ghosting problem.
- Open Letters. If you don't want to wait for a match, you can write a letter in the open that anyone can reply to. It's the fastest way to find a first real correspondent.
- No feed, no likes, no streaks. There is nothing to scroll. The app is the letter and the wait, and nothing else is competing for your attention.
- A stamp album that stays charming, not grindy. You collect stamps as letters arrive, without the collection turning into the point of the app.
- Clear safety and privacy. You can block or report anyone, and your exact location is never shared, only the distance between you.
Good for: Anyone who loved the idea of Slowly but got tired of unanswered letters, dormant accounts, or an interface that quietly hides your mail from you. Trade-off: It's newer, so the community is smaller than Slowly's. That cuts both ways: fewer people to write to, but a far higher share of them are actually still writing.
Get Snailpost, it's on both iPhone and Android.
Full disclosure: I build Snailpost. I've put it first because it's the closest match to what people are looking for when they search for a Slowly alternative, and the rest of this list is honest about where it falls short.
Lettre
Lettre leans into the handwriting angle, you draw or write your letter by hand on screen, and the recipient gets a facsimile of your handwriting rather than a typed block of text. It has a smaller community than Slowly, which cuts both ways: fewer strangers, fewer ghosts. If the tactile, personal quality of a handwritten note matters to you, Lettre is worth a look.
Good for: People who find typed letters a little sterile and want the feel of actual handwriting. Trade-off: Smaller pool of potential pen pals; you may wait longer to match.
Bottled
Bottled takes a completely different approach: you write a letter and "throw it into the sea." A random stranger can find it, keep it, and write back, or toss it back for someone else to find. It's playful and serendipitous, and it removes the pressure of one-to-one matching entirely.
Good for: People who enjoy the surprise element and don't mind corresponding with strangers picked essentially at random. Trade-off: Less control over who you write to; conversations can be shallow if the other person is just collecting "bottles."
HelloTalk
HelloTalk is technically a language-exchange app, but many of its users are there for the pen-pal experience. Its enormous base of native speakers makes it useful if your goal is both friendship and language practice. It also has voice messages, calls, and built-in translation.
Good for: Language learners who want a pen pal in their target language. Trade-off: It's a busy, feature-heavy app, not especially calm or slow. The "social feed" element can feel social-media-adjacent if you were hoping for something quieter.
Bubblic
Bubblic replaces text letters with voice messages. Instead of reading what someone wrote, you hear how they said it, tone, accent, personality intact. It also sends users a daily deep question to answer, which takes some of the pressure off deciding what to write about.
Good for: People who find text correspondence a bit flat and want something warmer, more human-sounding. Trade-off: Voice isn't everyone's preference, some people treasure the drafting, editing, and deliberate composure of a written letter.
Reddit's r/penpals
Not an app, but genuinely effective. Hundreds of people post every day with their age, country, interests, and what they're looking for. You reply directly, exchange contact details, and carry on via email, physical mail, or whatever platform you prefer.
Good for: People who want full control over the matching process and aren't fussed about a polished app experience. Trade-off: Zero safety infrastructure, no reporting or blocking built in, and you're doing all the vetting yourself.
What to actually look for when switching
When you're evaluating an alternative to Slowly, these are the questions worth asking:
- How big is the active community? An app with a million downloads but 50,000 monthly active users is very different from one with 100,000 downloads and 80,000 active users.
- What does it cost to do the basics? Some apps are free to start and sensibly priced; others lock you out of core features early.
- What are the safety tools? Blocking and reporting should be obvious and easy, not buried in settings.
- Is the slowness intentional or just lag? The best slow-correspondence apps slow you down on purpose. A delayed notification because of poor engineering isn't the same thing.
- Does the community feel curated? Slow-correspondence apps where most users are genuinely invested produce very different experiences from open platforms where many accounts are dormant.
FAQ
What is the closest app to Slowly? Snailpost. It's the only app on this list that keeps Slowly's core mechanic, real letters delayed by real distance, while pairing you with one well-matched person instead of leaving you to fish in an enormous, half-dormant pool. If you're looking for a direct replacement rather than a different experience, start there.
Is Slowly still the best pen pal app in 2026? For raw scale and variety of potential pen pals, Slowly is still the biggest name in the space. Whether "biggest" equals "best" depends on what you're looking for. If you keep writing letters that never get answered, a smaller and more intentional community like Snailpost will almost certainly serve you better than a bigger one.
Are there pen pal apps with no stamps or gamification? Yes. If the stamp-collecting element of Slowly feels like clutter to you, Lettre and several smaller apps drop that entirely and focus purely on the letters.
Can I use multiple pen pal apps at the same time? Absolutely. Many people keep one for international pen pals (Slowly or similar) and another for language exchange (HelloTalk) at the same time.
What happened to Slowly Plus? As of early 2026, Slowly Plus is still active, priced around €29.49 per year, and unlocks extras like doubled friend limits and more photo sharing. The free tier still allows unlimited letters.
Is there a pen pal app that doesn't have a social feed? Most dedicated slow-correspondence apps avoid feeds by design. Snailpost, Slowly, Lettre, and Bottled don't have a scrollable feed. HelloTalk does, worth keeping in mind if you find feeds draining.
Can I move to a Slowly alternative without losing my current pen pals? Yes, and you don't have to choose. Most people keep their existing Slowly conversations going while starting fresh somewhere calmer. Finish the letters you owe, and start the new ones where you'd actually enjoy waiting for a reply.
Where to start
If you want the short version of everything above: Snailpost is the alternative to try first. It's the closest match to what Slowly does well, letters that take real time to cross real distance, without the noise, the dead accounts, or the interface that loses your mail. It's free to start, it's on iPhone and Android, and you can be writing your first letter in a couple of minutes.
Whatever you choose, the quality of a pen-pal relationship depends less on the platform and more on what you write. Pick the one that makes you want to sit down and write something real.