LangX v2 is a rebuild rather than an update: a new app, a new API, and a new database underneath the same two store listings. Most of this post is not about the rebuild. It is about the two things v1 promised in public that v2 does not keep, because those are the parts you deserve to hear from us rather than discover.
First, what is actually new
Matching now runs in both directions. You only see people who speak the language you are learning and are learning the language you speak, so every conversation has something in it for both of you rather than one person doing a favour.
You can correct any message by tapping it, and translation is built into the chat so you never leave the conversation to look something up. There are daily streaks, LangX Tokens for talking and teaching, and weekly, monthly, yearly and all-time leaderboards.
The first broken promise: LangX is no longer free of charge
v1 said LangX was free with no in-app purchases. v2 introduces LangX Pro, a paid subscription, and three things that used to be free are part of it:
- Filters by gender, country, age and level in discovery
- Seeing who viewed your profile — the count stays free
- Browsing without leaving a trace
There are also two new limits on the free plan: 5 new conversations you start and 20 translations, each per rolling 24 hours.
Corrections being unlimited is not an oversight we will quietly close later. Rate-limiting the free side of a language exchange would shrink what a paying user receives just as much as what a free user gives — the person correcting your sentences is usually someone on the free plan.
The honest reason for the paywall is that the app costs money to run and had no revenue. We would rather charge for filters than sell your attention: there are no ads, no advertising identifiers, and no third-party analytics SDK. The code stays open source under BSD-3, and you can host your own instance.
The full comparison is on the LangX Pro page.
The second: LangX Token is not what the litepaper described
v1 shipped a token with wallets, a token leaderboard, and a litepaper describing something tradable, staked and eventually listed on an exchange.
The name stays. The trading does not.
LangX Token in v2 is an in-app point. You earn it by practising and by teaching — correcting someone else’s sentence is worth five times sending a message — and you spend it on a streak freeze or on cosmetic frames and titles. That is the complete list of things to spend it on, and it is complete on purpose: if tokens could buy a Pro feature, farming tokens would become a substitute for subscribing.
It cannot be bought, sold, traded, staked, transferred or withdrawn, and it is not on a blockchain. The on-chain design in the old litepaper is not being built. If that is ever revisited it will be a new document after legal review, not a continuation of the old one.
If you used LangX before
Your username is reserved for you and your streak is frozen rather than reset. You do have to sign up again with the same email address: the old password hashes could not be migrated. There is a welcome-back bonus when your profile is restored.
Everything about coming back is on the welcome back page.
What is missing in the first release
Badges are not in v2’s first release and are planned to return. LangX Copilot, the private in-chat feedback feature, is a later release too. We would rather list the gaps than let the site advertise something the app does not do — which, for what it is worth, is the same reason this post exists.