act101 Pricing 2026
Complete pricing guide for act101 — plans, costs, and free options.
💰 act101 Pricing Overview
act101 uses a freemium pricing model. Free tier available with optional paid upgrades. Current pricing: Builder Edition is $0 forever for personal, non-commercial, and open-source use, with 15 query operations, 5 analyzers, rename and fix-auto, and 138 of 163 grammars. Engineering is $29/month for the full mutation toolkit with a commercial license, refactor verification, and receipts. Architecture is $59/month adding structural refactors, decomposition, scaffolding, whole-codebase taint and git overlays, and team licensing. Elite is $99/month adding 25 premium languages including COBOL, Fortran, Ada, Solidity, and CUDA/GLSL/HLSL/WGSL. Enterprise and Fleet (licensed by concurrency, environment, or tenant rather than per laptop) are quoted. All prices USD, with a 7-day all-features trial.. act101 is a popular coding & development tool known for deterministic refactor and merge-gate layer for ai-written code — 183 refactors, signed receipts, one-command rollback. You can get started with act101 for free and upgrade to a paid plan as your needs grow.
🔍 Compare Before You Buy
Comparing act101 to similar tools helps you make the best choice for your budget and needs:
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act101 Plans & Pricing
Builder Edition is
forever for personal, non-commercial, and open-source use, with 15 query operations, 5 analyzers, rename and fix-auto, and 138 of 163 grammars
Engineering is
for the full mutation toolkit with a commercial license, refactor verification, and receipts
Architecture is
adding structural refactors, decomposition, scaffolding, whole-codebase taint and git overlays, and team licensing
Elite is
adding 25 premium languages including COBOL
Enterprise
and Fleet (licensed by concurrency, environment, or tenant rather than per laptop) are quoted
* Pricing information is based on publicly available data and may not reflect current promotions, annual discounts, or regional pricing. Visit the official act101 website for the latest pricing.
Is act101 Free?
act101 offers a free tier that lets you try the platform without any payment. The free plan typically includes core features with usage limits. For power users, paid plans unlock additional features, higher limits, and priority support.
act101 Feature Comparison
Here's how act101's key features are typically distributed across pricing tiers. Feature availability is estimated based on common SaaS patterns — check the official site for exact tier details.
| Feature | Builder Edition is | Engineering is | Architecture is | Elite is | Enterprise |
|---|---|---|---|---|---|
| 41 analyzers for dead code, cycles, coupling, hotspots, and seams | ◐ | ✓ | ✓ | ✓ | ✓ |
| 183 deterministic cross-file refactors in a single invocation | ◐ | ✓ | ✓ | ✓ | ✓ |
| `act gate` returns MERGE / REVIEW / BLOCK with a signed receipt | ◐ | ✓ | ✓ | ✓ | ✓ |
| Finds the tests that actually reach a changed function before verdict | — | ◐ | ✓ | ✓ | ✓ |
| Checkpoint-backed `act history undo` for one-command rollback | — | ◐ | ✓ | ✓ | ✓ |
| 163 language grammars, exposed over both MCP and CLI | — | — | ◐ | ✓ | ✓ |
✓ = Full access · ◐ = Limited · — = Not available. Feature availability is estimated and may vary.
Is act101 Worth It?
act101 is a freemium coding & development tool that offers 6 key features including 41 analyzers for dead code, cycles, coupling, hotspots, and seams, 183 deterministic cross-file refactors in a single invocation, `act gate` returns MERGE / REVIEW / BLOCK with a signed receipt. act101 is a native binary that wraps a determinism layer around AI-written code changes, addressing the specific failure mode where the diff is green, the tests pass, and the architecture is quietly worse than yesterday. It runs a three-stage loop. Analyze offers forty-one analyzers covering dead code, dependency cycles, coupling, hotspots, and seams — mapping the structure before anything touches it. Act performs 183 deterministic refactors including rename, extract, inline, move, wrap, introduce, and modernize, applied cross-file in one invocation and reported as structured JSON with a checkpoint id. Attest supplies six verify operations plus `act gate`, which classifies each changed function, finds the tests that actually reach it, diffs the side effects, and returns a deterministic MERGE, REVIEW, or BLOCK verdict with a signed receipt. The distinction the tool draws is between a format-only change (which clears the gate) and a behavior change covered by tests (which routes to a human and is never auto-merged). Because every operation writes a checkpoint, `act history undo` gives you the "undo the last three agent actions" that git archaeology otherwise cannot. It covers 163 language grammars and exposes both an MCP server and a CLI, so an agent can drive it directly. There is also act101 online, a GitHub-native AI-code health scanner for repos your agent writes.
✅ act101 is a good choice if you need:
- •41 analyzers for dead code, cycles, coupling, hotspots, and seams
- •183 deterministic cross-file refactors in a single invocation
- •`act gate` returns MERGE / REVIEW / BLOCK with a signed receipt
- •Finds the tests that actually reach a changed function before verdict
- •Checkpoint-backed `act history undo` for one-command rollback
💡 Value Assessment
With a free tier available, act101 is an easy recommendation for anyone looking to try coding & development tools without financial commitment. The paid plans offer good value for power users who need the additional features and higher usage limits.
act101 Key Features
act101 comes packed with features that make it a strong contender in the coding & development space. Here's what you get:
Available in the free plan with limits — 41 analyzers for dead code, cycles, coupling, hotspots, and seams helps you work more efficiently with act101.
Upload and process files directly within act101 for seamless workflows.
Available in the free plan with limits — `act gate` returns MERGE / REVIEW / BLOCK with a signed receipt helps you work more efficiently with act101.
Available in the free plan with limits — Finds the tests that actually reach a changed function before verdict helps you work more efficiently with act101.
Available in the free plan with limits — Checkpoint-backed `act history undo` for one-command rollback helps you work more efficiently with act101.
Available in the free plan with limits — 163 language grammars, exposed over both MCP and CLI helps you work more efficiently with act101.
act101 Alternatives & Their Pricing
Considering alternatives to act101? Here's how competing tools compare on pricing:
CodeMouse
PaidFlat $10/mo GitHub App that reviews every PR with Claude and/or GPT on your own keys, with no per-seat fees
Pricing: $10/month flat with a 14-day free trial and no credit card required, covering unlimited repositories, pull requests, and team members with no throttling. You pay Anthropic and/or OpenAI directly for model usage — typically $0.05-0.15 per review per provider — with no markup from CodeMouse. Cancel anytime through the billing portal.
Ready to try act101?
Visit the official website for the latest pricing and to get started.
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Get a Sponsored Badge →Frequently Asked Questions
Is act101 free to use?
Yes, act101 offers a free tier that you can use without paying. Paid plans starting at $29/month unlock additional features and higher usage limits.
How much does act101 cost in 2026?
As of 2026, act101 pricing is: Builder Edition is $0 forever for personal, non-commercial, and open-source use, with 15 query operations, 5 analyzers, rename and fix-auto, and 138 of 163 grammars. Engineering is $29/month for the full mutation toolkit with a commercial license, refactor verification, and receipts. Architecture is $59/month adding structural refactors, decomposition, scaffolding, whole-codebase taint and git overlays, and team licensing. Elite is $99/month adding 25 premium languages including COBOL, Fortran, Ada, Solidity, and CUDA/GLSL/HLSL/WGSL. Enterprise and Fleet (licensed by concurrency, environment, or tenant rather than per laptop) are quoted. All prices USD, with a 7-day all-features trial.. Pricing may vary based on billing cycle (monthly vs annual) and region. Visit the official act101 website for the most current pricing.
What is the cheapest act101 plan?
The cheapest option is the free tier. If you need premium features, the most affordable paid plan is Engineering is at $29/month.
Does act101 offer enterprise pricing?
Yes, act101 offers custom enterprise pricing with features like dedicated support, custom integrations, enhanced security, and volume discounts. Contact their sales team for a personalized quote.
What are the best alternatives to act101?
Popular alternatives to act101 include CodeMouse. Each offers different features and pricing structures. Compare them on AISO Tools to find the best fit for your needs and budget.
Is act101 worth the price?
act101 is well-regarded in the coding space, offering features like 41 analyzers for dead code, cycles, coupling, hotspots, and seams, 183 deterministic cross-file refactors in a single invocation, `act gate` returns MERGE / REVIEW / BLOCK with a signed receipt. Whether it's worth the investment depends on your specific needs, usage volume, and budget. The free tier lets you try it before committing to a paid plan.
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