kitio.aiKerlig vs AI Prompt Architect
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Kerlig starts at $49 one-time and AI Prompt Architect starts at $6.99 one-time. Check both pricing pages for current plans.
Builds, scores and refines prompts for ChatGPT, Claude and Gemini
Freemium · $12.99/moAt 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
- STCO prompt builder
- Prompt scoring
- 500+ templates
- Multi-model comparison
- MCP server
| Feature | Kerlig | AI Prompt Architect |
|---|---|---|
| Best for | Mac app that writes and proofreads in your tone across any app | Builds, scores and refines prompts for ChatGPT, Claude and Gemini |
| Category | Writing | Writing |
| Pricing model | Paid | Freemium |
| Starting price | $49 one-time | $6.99 one-time |
| Free plan | No | Yes |
| Made by | Kerlig | AI Prompt Architect |
| Based in | – | United Kingdom |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Kerlig starts at $49 one-time and AI Prompt Architect starts at $6.99 one-time. 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
4 plans
Free
Free
- 1 analysis credit
- Prompt library access
Starter Architect
$6.99 one-time
- 5 generations, 2 refines
- Valid for 18 months
Pro
$12.99/mo
- 5 generation credits a month
- Pro AI models
- PDF and Markdown export
Enterprise
$18.99/mo
- 10 generation credits a month
- For teams
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
AI Prompt Architect
- Free account with one analysis
- One-time pack option
- Works with several chat models
- Small credit allowances per plan
- Prices shown in two currencies
- Value depends on how often you write prompts
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 AI Prompt Architect if you want:
- Free account with one analysis
- One-time pack option
- Works with several chat models
Watch out: small credit allowances per plan.
Kerlig vs AI Prompt Architect FAQ
What is the difference between Kerlig and AI Prompt Architect?
Kerlig: Mac app that writes and proofreads in your tone across any app. AI Prompt Architect: Builds, scores and refines prompts for ChatGPT, Claude and Gemini. Both are writing tools.
Is Kerlig or AI Prompt Architect cheaper?
Kerlig starts at $49 one-time and AI Prompt Architect starts at $6.99 one-time. Check both pricing pages for current plans.
Do Kerlig and AI Prompt Architect have free plans?
Kerlig: No. AI Prompt Architect: Yes.
Who makes Kerlig?
Kerlig is made by Kerlig.
Who makes AI Prompt Architect?
AI Prompt Architect is made by AI Prompt Architect, based in United Kingdom.
Which should I choose, Kerlig or AI Prompt Architect?
Choose Kerlig if you value works in any mac app and use your own api keys and models. Choose AI Prompt Architect if you value free account with one analysis and one-time pack option.