Just Words
Continuously tests marketing copy against itself, treating wording as something to optimise rather than to decide.
Highlights
- Continuous Copy Testing: Move beyond traditional A/B testing with continuous experimentation, allowing for dynamic content adjustments and real-time optimization.
- Multi-Channel Support: Optimize content for SMS, email, push notifications, and SEO descriptions, ensuring effective communication across all channels.
- Real-Time Optimization: Automatically adjust copies based on user interactions and performance metrics, enhancing engagement and conversion rates.
- AI-Assisted Inference: Use AI to infer experimental results and fine-tune future iterations, accelerating the learning process and improving copy effectiveness.
- Smart Copy Rotation: Adapt copies to users in real-time, providing personalized and relevant content to each audience segment.
- Content Evaluation: Receive objective scores on generated copies, helping to identify the most effective content and refine future strategies.
- Low Latency Integration: Integrate seamlessly with existing A/B test frameworks, allowing for quick deployment and immediate benefits.
External link — opens getjust.ai in a new tab. Just Words is a third-party product; we are not affiliated with it.
About Just Words
What it is
Just Words runs continuous copy testing: generating variants of marketing and product copy, putting them in front of real users, and promoting what performs. Rather than producing a draft for a human to approve, it treats wording as an ongoing experiment across emails, notifications and product surfaces.
Why it's different
Continuous testing is a genuinely different proposition from generation. Most AI copy tools end at the draft, which leaves the hardest question — whether it works — unanswered, and teams rarely A/B test copy properly because setting up each test costs more than the wording seems to be worth. Automating that changes the economics. Two honest limits. It needs real traffic volume for results to mean anything, so a small audience gets noise rather than signal. And optimising every line towards clicks tends to converge on copy that performs slightly better and sounds increasingly like everyone else, which is a cost that does not appear in the dashboard.
How people use it
It suits products with enough users for statistical significance and enough surfaces to be worth testing — onboarding emails, lifecycle notifications, upgrade prompts. The sensible boundary is optimising functional copy while keeping brand and positioning language under human control, because those are the places where sounding distinctive matters more than a marginal conversion gain.
Written by the n3os team. We are not affiliated with Just Words.
This listing was written from public information, without Just Words’s involvement. If you own it and something here is wrong — or you would rather not be listed at all — email us and we will correct or remove it.
Get the ones worth knowing about
We write one of these for every tool worth the trouble. Get the new ones, plus what we have found genuinely useful lately.
Your address goes to Buttondown, who send the emails on our behalf. One click unsubscribes, and the list is never sold or shared.