Effector State vs MobX: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Effector State and MobX side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Effector State
A reactive state manager for JavaScript applications with strong typing and framework independence.
Best for you if:
- • You want strong type safety with TypeScript support
MobX
Simple, scalable state management for JavaScript applications.
Best for you if:
- • You want simple state management
| At a Glance | Effector State | MobX |
|---|---|---|
Starts at | Free 100% free | Free 100% free |
Category | Developer Tools UI/UX Design | UI/UX Design Developer Tools |
Rating | n/a | 4.3/5 SourceForge 4.3 67 reviews |
Free plan | Yes | Yes |
Choose Effector State or MobX?
Choose Effector State if
- You want strong type safety with TypeScript support
- You want flexible and works with any JavaScript framework
- You work in developer tools, not UI/UX design
Choose MobX if
- You want simple state management
- You want observable pattern
- You work in UI/UX design, not developer tools
In-Depth Analysis
Effector State
A reactive state manager for JavaScript applications with strong typing and framework independence.
Strengths
- Pro: Strong type safety with TypeScript support
- Pro: Flexible and works with any JavaScript framework
- Pro: Optimized for performance and small bundle size
- Pro: Uses standard JavaScript, avoiding complex abstractions
- Pro: Developer-friendly with a helpful community and easy testing
Weaknesses
- Con: Requires initial learning curve for developers unfamiliar with its specific state management paradigm
- Con: Community size might be smaller compared to more established state management libraries
- Con: While framework agnostic, integration patterns might need to be learned for each specific framework
Key features
MobX
Simple, scalable state management for JavaScript applications.
MobX offers an incredibly fair and generous pricing model as it is entirely free and open-source.
Strengths
- Pro: Simple state management
- Pro: Observable pattern
- Pro: Less boilerplate
- Pro: Good performance
- Pro: Active development
Weaknesses
- Con: Magic can confuse
- Con: Learning curve
- Con: Less popular than Redux
- Con: Debugging harder
- Con: Pattern differences
Key features
Plans and prices: Effector State vs MobX
| Tool | Plans and prices | Source |
|---|---|---|
| Effector State | No plan prices on file | effector.dev |
| MobX |
| mobx.js.org read Oct 1, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Effector State pricing and MobX pricing.
Key Takeaways
Effector State
- Choose if you want a reactive state manager for JavaScript applications with strong typing and framework independence
MobX
- Choose if you want simple, scalable state management for JavaScript applications
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- Only MobX has a published user rating (4.3/5 from 67 reviews); Effector State has none we can show.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Effector State and MobX compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. Only MobX has a published user rating (4.3/5 from 67 reviews); Effector State has none we can show. Both have a free plan.
What are Effector State and MobX used for?
Effector State: A reactive state manager for JavaScript applications with strong typing and framework independence. MobX: Simple, scalable state management for JavaScript applications.
What does Effector State cost vs MobX?
Effector State is free. MobX is free. Prices read on the vendors' pricing pages, latest check Oct 1, 2026.
What's the main difference between Effector State and MobX?
Effector State's main strength: strong type safety with TypeScript support. MobX's main strength: simple state management.