Trade cryptocurrencies like Bitcoin and Ethereum commission-free with advanced routing across multiple exchanges. Securely buy, store, and sell digital assets using patented wallet technology.
Best Stack alternatives: apps like Stack: Buy & Sell Bitcoin
9+ similar apps compared and reviewed
4.3 avg rating
9 free apps
Updated October 2026
Stack is great, but it's not the only option. Explore 9+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.
Top Alternatives to Stack
Unchained: Bitcoin Finance by Unchained Capital, Inc.
Vaults, IRAs, Loans, TradingStrong Contender
💰 Finance
4.8😊(74 ratings)
Free
Securely manage your Bitcoin with collaborative custody vaults, tax-advantaged IRAs, and Bitcoin-backed loans. This platform offers expert support, direct trading to cold storage, and a seamless inheritance plan for your digital assets.
What We Love
- 🔒 State-of-the-art security (2-of-3 multi-sig)
- 👍 User-friendly guides and support
- 👍 Intuitive and streamlined interface
- 👍 Clean and well-designed app
- 🚀 Mobile BTC purchases direct to cold storage
- 👍 Easy to use and navigate
- 👍 Slick and easy interface
- 👍 Great company and support
- 👍 Perfect companion app for Unchained's service
- 👍 Amazing UI
- 👍 Super easy to use
- 👍 Beautifully designed app
- 👍 Makes HODLing bitcoin safely easy
- 👍 Surreal mobile buying to cold storage
Room to Improve
- 🐛 Captcha not working for login
- 🐛 Product is very buggy
- 💡 Not fully featured yet (but expected to grow)
4.6😞(10K ratings)
Free
Easily buy, sell, and swap over 170 cryptocurrencies using various payment methods, including Apple Pay. Manage all your crypto wallets in one place and set up recurring purchases to grow your portfolio automatically.
What We Love
- 🚀 Fast and easy to use
- 🔒 Secure transactions
- 👍 Smooth user experience
- 🤑 Convenient way to buy crypto
Room to Improve
- 💰 Extremely high fees
- 🐛 Glitchy app with bugs
- 🤖 Poor customer support
- 🔒 Account issues and lockouts
- 💸 Funds disappearing or not received
