Both tools swear they can write in "your voice." But here's the thing - they're solving completely different problems. Let me cut through the marketing speak and show you what actually matters.
Same prompt. Different output.
Prompt: "Follow up with a lead who went quiet after the demo"
I hope this email finds you well. I wanted to reach out regarding our recent demonstration of our platform. I understand you may have a busy schedule, and I would love the opportunity to reconnect and address any questions you may have. Please don't hesitate to reach out at your earliest convenience.
Prompt: "Follow up with a lead who went quiet after the demo"
Hey Sarah - wanted to check in after the demo last week. I know things get busy, but if you're still thinking about it, happy to hop on a quick call to talk through any questions. Either way, no pressure - just let me know.
Want AI that actually sounds like you?
Try ToneClone free and see the difference real voice training makes.
Quick Comparison
| Feature | ToneClone | Jasper |
|---|---|---|
| Voice training | Upload your writing samples | Brand Voice style guide or sample content |
| Learns from edits | Yes (SmartStyle) | No |
| Block AI-sounding phrases | Yes (StyleGuard) | No |
| Context/knowledge storage | Knowledge Cards | Knowledge Base |
| Browser extension | Chrome, Firefox | Chrome, Edge |
| CLI for developers | Yes | No |
| Mobile | Android app + Web | Web only |
| Free tier | Yes | 7-day trial only |
| Starting price | Free | $49/mo (Creator) or $69/mo (Pro) |
| Built for | Writers and small teams | Enterprise marketing teams |
Where Jasper Wins
Look, Jasper is a beast for enterprise marketing teams. I'm not gonna pretend otherwise.
Team collaboration. Jasper was built for teams. Shared workspaces, permission controls, document versioning, review workflows. If you've got a bunch of writers, editors, and approvers all touching the same content, Jasper handles that really well.
SEO integration. Hooks directly into Surfer SEO right in the editor. Optimizing blog posts for search? That's genuinely useful.
Template library. 50+ templates for ads, emails, product descriptions, landing pages, social posts. You need to crank out high-volume marketing content fast? Templates are your shortcut.
Brand Voice consistency. Upload a style guide or sample content and enforce it across your entire team. Everyone writes in "the company voice." That's the whole point - and Jasper does it well.
Enterprise features. SSO, analytics dashboards, usage tracking, dedicated account managers on higher plans. Big org with compliance requirements? Jasper's got you covered.
Bottom line: Enterprise marketing teams with documented brand guidelines who need collaboration, SEO, and consistency across multiple writers.
Where ToneClone Wins
This is where we go deeper on personal voice.
Actual voice training. Upload real writing samples - emails, blog posts, documents, Slack messages, whatever. ToneClone analyzes your vocabulary, sentence patterns, rhythm, and quirks. Not a style guide. Not a brand document. Your actual voice. Jasper asks for a style guide or sample content. That's brand guidelines - not you.
SmartStyle. ToneClone watches how you edit its drafts and gets better over time. Accept a suggestion, reject another, change a word - ToneClone learns your preferences. Your persona improves the more you use it. Jasper's Brand Voice is static. It doesn't evolve.
StyleGuard. Block the phrases that scream AI - "I hope this email finds you well," "leverage," "utilize" - whatever annoys you. StyleGuard removes them automatically. Jasper has zero AI-tell detection.
Developer-friendly. CLI tool for power users who live in the terminal. Full API access. n8n integration for automation. Raycast extension. Jasper? Browser and web app only.
Mobile. Android app with draft generation and keyboard integration so you can write in any app on your phone. Jasper is web-only on mobile.
Price. ToneClone has a free tier. Jasper starts at $49/mo and climbs from there - $69/mo for Pro, custom pricing for Business.
Bottom line: Founders, small teams, salespeople, creators - anyone who has emails, articles, or other writing to learn from, but doesn't have formal brand guidelines or a marketing style guide.
The Real Difference
Here's what separates them:
Jasper asks: "How do we help a team of writers all follow our brand guidelines?"
ToneClone asks: "How do we make AI output sound like you - based on how you actually write?"
Jasper assumes you have brand guidelines. Style guides, tone documentation, marketing playbooks already written down. If you're an enterprise team with that stuff locked in, Jasper enforces it across everyone.
ToneClone starts with your actual writing. Upload emails you've sent, blog posts you've written, documents you've created. We learn your patterns from real examples - not from a style guide you had to write first.
You're a founder, small team, or just someone with plenty of writing samples but no formal brand documentation? You don't need to create a style guide just to use AI. You need AI that learns from what you've already written.
Who Should Use What
Choose Jasper if:
- You're a marketing team with multiple writers
- You need SEO integration and content optimization
- Brand consistency across your org matters more than individual voice
- You want templates for high-volume content production
- You have budget for $69+/mo per seat
Choose ToneClone if:
- You have emails, articles, or other writing to learn from - not brand guidelines or style guides
- You're tired of editing every AI draft to sound less robotic
- You want AI that learns from how you actually write
- You need mobile, CLI, or API access
- You want to start free and scale up
Give It a Shot
Start free - no credit card, no commitment. Upload a few emails and see if ToneClone can match your voice.