kitio.aiKerlig vs AIssistify
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Kerlig starts at $49 one-time and AIssistify starts at $10/mo. 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
- Hotkey writing assistant
- Custom actions
- 350+ model choices
- Local model support
- MCP servers
- Agentic Mode
- Hidden character detection
- AI phrasing cue map
- Multi-model rewriting
- Redline comparison
- MCP developer access
| Feature | Kerlig | AIssistify |
|---|---|---|
| Best for | Mac app that writes and proofreads in your tone across any app | Finds AI-style patterns in a draft and rewrites it in your voice |
| Category | Writing | Writing |
| Pricing model | Paid | Freemium |
| Starting price | $49 one-time | $10/mo |
| Free plan | No | Yes |
| Made by | Kerlig | AIssistify |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Kerlig starts at $49 one-time and AIssistify starts at $10/mo. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
1 plan
Kerlig license
$49 one-time
- One-time purchase
- macOS 12 or later
- Bring your own API keys
2 plans
Inspector
Free
- Invisible character reveal
- Pattern explanations
- No account needed
Rewrite Studio
$10/mo
- Up to $10 in model credits
- Multi-model rewriting
- Voice controls and history
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
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
AIssistify
- Inspector is free with no account
- Explains every flag it raises
- Hard limit on credit spending
- Only one paid plan
- Credits limited to $10 of model use a month
- Pattern checks focus on English prose
Which one should you choose?
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.
Choose AIssistify if you want:
- Inspector is free with no account
- Explains every flag it raises
- Hard limit on credit spending
Watch out: only one paid plan.
Kerlig vs AIssistify FAQ
What is the difference between Kerlig and AIssistify?
Kerlig: Mac app that writes and proofreads in your tone across any app. AIssistify: Finds AI-style patterns in a draft and rewrites it in your voice. Both are writing tools.
Is Kerlig or AIssistify cheaper?
Kerlig starts at $49 one-time and AIssistify starts at $10/mo. Check both pricing pages for current plans.
Do Kerlig and AIssistify have free plans?
Kerlig: No. AIssistify: Yes.
Who makes Kerlig?
Kerlig is made by Kerlig.
Who makes AIssistify?
AIssistify is made by AIssistify.
Which should I choose, Kerlig or AIssistify?
Choose Kerlig if you value works in any mac app and use your own api keys and models. Choose AIssistify if you value inspector is free with no account and explains every flag it raises.