kitio.aiHumanTone vs Kerlig
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. HumanTone starts at $5 one-time and Kerlig starts at $49 one-time. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- AI humanizer with custom instructions
- AI detector
- 60+ languages
- MCP server
- REST API and SDKs
- n8n and Make integrations
- Hotkey writing assistant
- Custom actions
- 350+ model choices
- Local model support
- MCP servers
- Agentic Mode
| Feature | HumanTone | Kerlig |
|---|---|---|
| Best for | AI humanizer for content teams with tone controls and an API | Mac app that writes and proofreads in your tone across any app |
| Category | Writing | Writing |
| Pricing model | Freemium | Paid |
| Starting price | $5 one-time | $49 one-time |
| Free plan | Yes | No |
| Made by | HumanTone | Kerlig |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
HumanTone starts at $5 one-time and Kerlig starts at $49 one-time. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Basic
$10/mo
- 150 credits, about 15,000 words
- Up to 750 words per run
- Custom instructions
Standard
$20/mo
- 400 credits, about 40,000 words
- Up to 1,000 words per run
Pro
$40/mo
- 1,000 credits, about 100,000 words
- Up to 1,500 words per run
Credit top-up
$5 one-time
- 50 credits, about 5,000 words
- Valid for 1 year
- No subscription needed
1 plan
Kerlig license
$49 one-time
- One-time purchase
- macOS 12 or later
- Bring your own API keys
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
HumanTone
- Keeps chosen phrases intact
- Strong integration options
- Credit top-ups without a subscription
- Word caps per generation on each plan
- Credits based on input length
- Basic plan limited to 750 words per run
Kerlig
- Works in any Mac app
- Use your own API keys and models
- Chat history stored on your Mac
- Mac only
- Model usage billed by your AI provider
- Agentic Mode needs screen access
Which one should you choose?
Choose HumanTone if you want:
- Keeps chosen phrases intact
- Strong integration options
- Credit top-ups without a subscription
Watch out: word caps per generation on each plan.
Choose Kerlig if you want:
- Works in any Mac app
- Use your own API keys and models
- Chat history stored on your Mac
Watch out: mac only.
HumanTone vs Kerlig FAQ
What is the difference between HumanTone and Kerlig?
HumanTone: AI humanizer for content teams with tone controls and an API. Kerlig: Mac app that writes and proofreads in your tone across any app. Both are writing tools.
Is HumanTone or Kerlig cheaper?
HumanTone starts at $5 one-time and Kerlig starts at $49 one-time. Check both pricing pages for current plans.
Do HumanTone and Kerlig have free plans?
HumanTone: Yes. Kerlig: No.
Who makes HumanTone?
HumanTone is made by HumanTone.
Who makes Kerlig?
Kerlig is made by Kerlig.
Which should I choose, HumanTone or Kerlig?
Choose HumanTone if you value keeps chosen phrases intact and strong integration options. Choose Kerlig if you value works in any mac app and use your own api keys and models.