Aviationstack ◆
Aviationstack is a scalable REST API for real-time flight tracking, historical flight data, airport info, and global aviation data.

Base (Developer Tools): Base is a unified API platform for back-end services: authentication, email, image/file storage, and user management. Pricing: from from $0/mo (Free plan) or $29/mo (Pro). (data verified July 2026)
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Base is a single-service API platform that lets developers build back-ends faster by bundling essential features like user authentication, email sending, image storage, and file management into one easy-to-integrate API. Instead of managing multiple third-party services, you get everything you need in one place.
Developers often spend weeks stitching together separate services for auth, email, file storage, and image optimization—each with its own SDK, pricing, and maintenance burden. Base eliminates that complexity: you write one integration, get one dashboard, and manage one bill. It’s designed for indie developers, small teams, and startups that need to move fast without sacrificing quality.
Best for: solo developers, early-stage SaaS teams, and small businesses building web or mobile apps that need authentication, email (transactional, newsletters), and file handling. Not ideal for enterprise apps requiring on-premise hosting, deep customisation of auth flows, or heavy email marketing automation (use dedicated tools for those).
Use Base to quickly spin up a user registration/login system for your app, send welcome emails with templates, upload and serve profile images via CDN, and store user-uploaded PDFs—all with a single API key.
Editorial score from our review methodology — not user ratings.
Base pricing: from $0/mo (Free plan) or $29/mo (Pro). Billing model: Freemium.
$0/mo — 1,000 API calls/month, 1,000 emails/month, 10 GB storage.
$29/mo — 100,000 API calls/month, 10,000 emails/month, 100 GB storage. Start a free trial.
Custom pricing — unlimited everything, 24/7 support, SLA guarantee. Contact sales.
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