Alternatives
Tools that cover the same task as MojoAuth (authentication), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 4, 2026.
Better Auth is a TypeScript authentication framework that lives in your application code with plugins for sessions, social login, organizations, passkeys, API keys, and enterprise SSO. The vendor also sells managed infrastructure with dashboards, audit logs, and security detections while the core framework stays open source.
Best for: Developers building Next.js, Nuxt, SvelteKit, Hono, and other TypeScript apps who want composable auth in code plus optional hosted infrastructure.
FACEIO is a passwordless facial authentication SDK for websites and apps, combining face recognition, liveness detection, and age verification through a browser widget and REST API. Developers enroll users once and authenticate them with face scans instead of passwords.
Best for: Web developers who need cross-browser face login, liveness checks, or age gates without building biometrics in-house.
Trophy is a gamification platform for consumer web and mobile apps that adds achievements, streaks, points, leaderboards, and lifecycle messaging without building custom game infrastructure. The homepage targets product teams seeking retention lifts through pre-built engagement primitives and analytics.
Best for: Consumer app teams that want drop-in gamification and lifecycle messaging to improve retention without staffing a games platform team.
PropelAuth provides authentication and org management built for B2B and AI-native products. The platform covers hosted login UIs, SAML and enterprise SSO, RBAC, API keys, and MCP authentication so teams can ship secure multi-tenant apps faster.
Bubble is a visual no-code platform for building web and mobile applications with databases, workflows, design tools, and AI-assisted development in a hosted workspace.
Best for: Founders and product teams shipping full-stack apps without traditional code who need Bubble-hosted infrastructure.
Context.dev is a web data API for AI agents and LLMs to scrape pages into Markdown, crawl sites, map domains, run batches, research the web, monitor changes, and retrieve brand data through one REST platform with SDKs and MCP support.
Castle provides SDKs and APIs to detect bots, monitor risky logins, and stop account abuse using device, email, IP, and behavioral intelligence. Teams integrate Castle to score traffic and automate policy actions in web and mobile apps.
Best for: Product and fraud teams at consumer apps that need bot detection, account takeover protection, and IP intelligence without heavy integration friction.
AhaSend provides EU-hosted transactional email delivery through REST APIs and SMTP relay. The vendor emphasizes transparent usage pricing, GDPR readiness, and developer tooling such as webhooks, CLI utilities, and deliverability features.
Stream provides hosted APIs and SDKs for in-app chat, video, activity feeds, moderation, and voice AI agents. Product teams integrate real-time messaging and feeds with enterprise SLAs and vertical-specific solution templates.
Best for: Mobile and web engineering teams shipping social, marketplace, or support experiences needing managed real-time infrastructure.
Dualite is a vibe-coding platform that turns prompts into web and mobile apps, dashboards, and AI agents without traditional coding. It supports Figma-to-code, GitHub import, backend databases, authentication, and downloads with models such as GPT 5.1, Claude Sonnet 4.5, and Gemini 3 Pro.
Best for: Founders and product builders who want fast prototypes and production-ish apps from natural language prompts across web and mobile.
Better Auth has an ongoing free plan. Starter managed infrastructure is $0 per month with one dashboard seat and community support; the Better Auth framework itself is free and open source. Free plans change, so check the vendor before relying on one.
AhaSend has the lowest listed starting price at $10/mo, compared with $120/mo for MojoAuth.
Better Auth, FACEIO, Trophy, PropelAuth, Bubble mention API or developer access.
Best for: B2B SaaS and AI-native companies that need multi-tenant auth, enterprise SSO, and org management without building it in-house.
Best for: Developers building agents, RAG apps, or products that need fresh web content without running their own scraping infrastructure.
Best for: Developers sending password resets, receipts, and other transactional mail who want pay-as-you-grow EU infrastructure.