Software Alternatives & Startups

LetX.app VS React-Ionic

Compare LetX.app VS React-Ionic and see what are their differences

LetX.app

A free Overleaf alternative. Write, edit and compile LaTeX in the browser with unlimited collaborators, 1,000+ publication-ready templates for theses, journals and CVs, and an AI assistant that runs the real compiler. No installation required.

Rating
5.0 · 1 review
Pricing
Freemium Free trial $9 / Monthly
React-Ionic

Create iOS and Android apps with React and Ionic

Rating
0 reviews
Pricing
Open source
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, LetX.app seems to be more popular. It has been mentioned 3 times since March 2021.

social mentions
3 vs 0
Text Editors popularity
100% vs 0%

Base details

Website, pricing, platforms and company facts side by side.

LetX.app
React-Ionic
Website letx.app reactionic.github.io
Pricing
Freemium Free trial $9 / Monthly Official pricing
Open source
Platforms
Web SaaS Cloud
—
Company Startup from Bangladesh · 1 - 9 employees · 2026 —
Listed in

About LetX.app and React-Ionic

In their own words, as submitted to SaaSHub.

LetX.app
React-Ionic

LetX is a free, browser-based collaborative LaTeX editor and an alternative to Overleaf. What it does Real-time collaboration with live cursors and conflict-free merging. Collaborators you invite to a project are never charged for. Compiles in a few seconds on the full TeX Live 2024: pdfLaTeX,...

Read more about LetX.app

No description of React-Ionic yet.

Features and specs

What each product offers, as listed by its team.

LetX.app 10 features
React-Ionic 5 features
  • Real-time collaboration
    Unlimited simultaneous collaborators on every plan, including free. Conflict-free CRDT merging with live cursors.
  • Templates
    1,000+ templates across 20 categories: theses, journals, CVs, grants, posters and Beamer
  • Compile engines
    pdfLaTeX, XeLaTeX and LuaLaTeX, selectable per project
  • Version history
    Roll back to any saved version; full history on Pro
  • SyncTeX
    Both ways: click the PDF to jump to the source line, and back
  • GitHub Sync
    Import a repository and sync changes both ways, on Pro
  • Compile engines
    pdfLaTeX, XeLaTeX and LuaLaTeX on the full TeX Live 2024, selectable per project
  • Lexi AI assistant
    Edits the document, runs the build, reads the real compile log and fixes the line that failed
  • Claude and ChatGPT (MCP)
    On paid plans, your AI assistant can search templates, edit projects and compile to PDF
  • Team plan
    2 to 50 seats at $20 per seat a month, one bill, roles and an activity log
  • Cross-Platform Development
    React-Ionic allows developers to build applications that run on both iOS and Android platforms using a single codebase, effectively saving time and resources.
  • React Ecosystem
    Integration with the React ecosystem provides access to numerous libraries and tools, allowing developers to use familiar technologies and streamline the development process.
  • Ionic Components
    Leverages Ionic's UI components that are designed to look and feel native on both iOS and Android, providing a consistent and polished user experience across platforms.
  • Live Reloading
    Features like live reloading and hot module replacement can speed up the development process by allowing developers to see changes in real-time.
  • Community Support
    Being part of the larger React and Ionic communities, developers can tap into extensive community support and resources to help solve issues and improve their applications.

Possible disadvantages

  • Performance Overhead
    Applications built with React-Ionic may experience performance overhead compared to fully native apps, which can be a concern for performance-intensive applications.
  • Learning Curve
    Developers new to the ecosystem might face a learning curve due to the combination of React and Ionic concepts and components.
  • Platform-Specific Customization
    While React-Ionic provides cross-platform functionality, achieving platform-specific look and feel or leveraging native features can require additional customization and work.
  • Ecosystem Dependence
    Reliance on both the Ionic framework and React means developers must stay current with updates and changes in both ecosystems, which can cause maintenance challenges.
  • Bundle Size
    The inclusion of both React and Ionic libraries can lead to larger application bundle sizes, which might impact load times and performance on lower-end devices.

Videos

Walkthroughs and reviews on video.

LetX.app 1 video + Add
React-Ionic 0 videos + Add

Let's write LaTeX together | LetX OVC

No React-Ionic videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
LetX.app
React-Ionic
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing LetX.app and React-Ionic.

How would you describe the primary audience of your product?

LetX.app's answer

Researchers, postgraduate students and academic staff writing papers, theses and grant proposals, along with the labs and university departments they work in. Usage concentrates around thesis submission and journal deadlines. A secondary audience is job-seekers and engineers using the CV and résumé templates.

Which are the primary technologies used for building your product?

LetX.app's answer

Go with Gin for the API; React, TypeScript and CodeMirror 6 on the front end; Yjs CRDTs over WebSocket for real-time collaboration; PostgreSQL, Redis and S3 for storage and coordination; and SQS-queued compile workers running a full TeX Live distribution on AWS ECS Fargate.

What's the story behind your product?

LetX.app's answer

LetX started because collaborative LaTeX was either expensive or private in name only. Overleaf's pricing scales with the people you write with, which is backwards for a thesis committee or a five-author paper. Then the AI-native editors arrived with a worse trade: faster tooling in exchange for unpublished work that might end up as training data.

LetX was built to refuse both: unlimited collaborators on every plan, and an explicit ai-train=no declaration. Launched 27 January 2026, it has grown to 5,700+ users at 440+ universities and research labs in 65+ countries, helped by the regional university thesis templates nobody else maintained.

What makes your product unique?

LetX.app's answer

Three things nothing else in the category combines. Collaboration is genuinely unmetered: every plan, including free, allows unlimited simultaneous collaborators, so cost never scales with the number of co-authors. The AI assistant runs the actual build and reads the actual error log, rather than producing LaTeX you paste elsewhere and debug yourself. And LetX declares ai-train=no, so unpublished research is never training data. The library is also unusually deep for regional needs: 1,000+ templates, including university-specific thesis formats most editors don't carry.

Why should a person choose your product over its competitors?

LetX.app's answer

Overleaf's free plan allows one collaborator per project, and more collaborators means a higher plan. LetX gives unlimited collaborators free, with full history on Pro at $18/month, a separate Academic Pro plan at $9/month for verified students, faculty and university staff, and a Team plan at $20 per seat for labs and classes of 2 to 50 people.

Against the newer AI-native editors, the difference is what happens to your manuscript: LetX declares ai-train=no, and its privacy policy says your documents are never used to train AI models.

Against desktop editors like TeXstudio or Texmaker, there is nothing to install or maintain, and every co-author gets an identical environment.

Who are some of the biggest customers of your product?

LetX.app's answer

In production since 27 January 2026. 5,700+ students and researchers at 440+ universities and research labs in 65+ countries sign up on their own; the largest groups are at BRAC University, UNAM, UC San Diego and the University of Windsor.

User comments

Share your experience with using LetX.app and React-Ionic. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

LetX.app 5.0 · 1 review
React-Ionic no reviews yet

We have no reviews of React-Ionic yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

LetX.app 3 mentions
React-Ionic 0 mentions
  • Writing Your Thesis in LaTeX With Your Advisor in the Loop
    In LetX, collaborators are unlimited on the free plan, so inviting an advisor and committee members costs nothing extra. The research-team page mentions a supervisor reviewing drafts as part of a typical lab workflow, but it does not... - Source: dev.to / 17 days ago
  • Fixing LaTeX Compile Errors With an AI Assistant (and When It Gets It Wrong)
    That is the idea behind Lexi, the assistant built into LetX. According to the LetX site, it reads the whole project and the compile log, edits the source, and recompiles the PDF. The command /fix runs that loop. Examples on the Lexi page... - Source: dev.to / 17 days ago
  • Stop Notation Drift in Co-Authored LaTeX Papers With One macros.tex
    If your team writes together in LetX, the free plan has unlimited collaborators, so everyone can work in the same project at the same time. The macros.tex habit works the same in any editor, so use whatever fits your team. - Source: dev.to / 17 days ago

Tracking React-Ionic since Mar 2021.

Alternatives to LetX.app and React-Ionic

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