FAQ
Frequently asked questions.
Short answers to the questions people ask most about how Summo works: custody and safety, recovery, fees, payments, trading, and getting started. Each topic has a full page in this section.
01About Summo
What is Summo?
Summo is a self-custodial mobile wallet for digital markets: one app to hold and send money, pay in stores, trade, and earn. You control your own funds, and Summo can never move them on its own.
Is Summo an exchange?
No. Summo is a self-custodial wallet. Your assets stay in an account only you control, and you sign your own transactions. Trading connects to outside liquidity and partner venues, but Summo never holds your funds the way an exchange does.
Does Summo charge a monthly or account fee?
No. There is no monthly or account fee. You pay network fees on transactions, which can be paid in several ways, and a service fee on certain actions. Every option and its cost is shown before you confirm.
02Custody and keys
Is Summo custodial? Who controls my money?
Summo is non-custodial. Your account is a smart account secured by three keys under a two-of-three threshold: you control two of them, and Summo holds one. Summo can never move your funds on its own, and your two keys can always move funds without Summo.
What is the co-signer?
The co-signer is the one key Summo holds. It adds a second signature only after checking a transaction against your account security policy. As one key of three, it can never move funds by itself, and it cannot stop you from moving funds with your own keys.
Can Summo freeze or take my funds?
Summo cannot take your funds, because it holds only one of three keys. Its co-signer will decline to sign in specific cases, for example a destination on the sanctions and scam blocklist, or a transaction above a spending limit you set. Even then it can never spend from your account, and your own keys can always move funds independently.
Do I need a seed phrase? How do I sign in?
You sign in with Apple, Google, or email, with no password to remember. Your keys are generated on your device at sign-up, so the account is self-custodial from the start. A recovery phrase is created on the device and secured in its hardware for you to back up in writing.
03Security and recovery
Is Summo safe?
Summo is non-custodial, and its checks on the money path are built to block a risky transaction rather than let it through. Protections include two-of-three custody, an encrypted on-device recovery phrase, a policy co-signer that screens every payment, guardians, sanctions and scam-address screening, look-alike-address defense, and code that reaches production only through hardware-signed, verified releases.
What happens if I lose my phone?
Your written recovery phrase restores the account on a new device at any time, independently of Summo. If you have added guardians, they can also help you recover access.
What if I lose my recovery phrase as well?
If you have set up guardians, trusted contacts you choose, they can help you regain access even without the written phrase. Recovery restores only your own keys. It never lets Summo or a guardian move your funds.
What are guardians?
Guardians are trusted contacts you invite. They can help you recover access, and they approve certain security changes such as loosening a spending limit. A guardian can never create a transaction, move funds, or act on your account alone.
What if my phone is stolen?
While the phone is locked, your keys are unreadable. Every money action also requires a biometric check enforced in hardware, and any spending limit you have set caps what could be taken even by someone who unlocks the phone.
04Money and markets
Which networks does Summo support?
Ethereum, Base, Arbitrum, Polygon, Robinhood Chain, and Solana. One Summo account works across all of them.
Do I need to hold crypto to pay network fees?
No. A network fee can be paid in the network native coin, in a supported token instead with no native coin required, or with gas credits. Every option and its cost is shown before you confirm.
Can I pay in stores?
In the countries where Summo QR Pay is available, yes. You scan the merchant QR code, and the payment settles from your balance and reaches the merchant in local currency, often through a local payment network people already use, with no card required. QR Pay is live in specific geographies today, not everywhere, and it requires a one-time identity verification in the app.
Which countries is QR Pay available in?
QR Pay is available today across parts of Latin America, Africa, and Southeast Asia, and coverage expands over time, with more countries listed as coming soon. Availability can vary by account and by country to comply with local law. The current list is on the Payments page.
What can I trade?
Swaps between assets, routed for the best available price across supported networks; perpetual futures on a partner derivatives exchange; and prediction markets. The fees and risks for each are shown before you confirm.
How does Earn work, and is the yield guaranteed?
Earn puts idle assets into a curated set of third-party vaults, either lending vaults or market-making vaults. Rates are variable and not guaranteed, and each rate is shown before you deposit. Summo takes a performance fee on the yield generated only, never on your principal.
05Getting started and support
How do I get Summo?
Summo is on the App Store and Google Play. You sign in with Apple, Google, or email, then fund the account with a card or Apple Pay where available, or by sending assets to your Summo address on any supported network.
How do I add money?
Two ways: buy directly in the app with a card or Apple Pay, where available in your region, or send assets to your Summo address from another wallet or exchange on any supported network.
How do I get help?
Summo support is available by email, any time, at [email protected].