Ownbit

Ownbit is a self-custody crypto wallet app for iOS and Android. It is built around two jobs: cold storage without a hardware wallet, and MultiSig, where several people or devices must approve a payment before it goes out. A spare phone kept offline holds your keys and signs by QR code. On Solana, the MultiSig rules live in an on-chain program, so the network enforces them.

The wallet is made by BITTOOL PTE. LTD. of Singapore and has run since 2017. It supports SOL and SPL tokens alongside Bitcoin, Ethereum, Tron and other chains. The app is free to install, and paid membership starts at $69 a year. Ownbit shipped a rebuilt version 5.0 in October 2026.

How the Ownbit cold wallet works with two phones

The Ownbit cold wallet splits one wallet across two phones. One phone stays offline for good and holds the keys. The other stays online as a "Watch Wallet" that can see balances but cannot spend. The two talk only by QR code, so the keys never touch the internet.

Sending money takes three scans. You build the payment on the online phone, which shows it as a QR code. You scan that with the offline phone, check the details and sign. The offline phone shows a second QR code, and the online phone scans it and broadcasts the payment. Ownbit's supported chains table lists cold signing on all 18 chains the wallet covers, Solana among them.

Keys follow the common BIP39, BIP32 and BIP44 standards, so a seed phrase made in Ownbit can be restored in most other wallets. There is one chore to plan for. An offline phone cannot update itself. Ownbit's install guide says to back up the seed phrase, delete the app, go online to install the new version, then go offline and restore.

Ownbit MultiSig on Solana: the on-chain program

Ownbit MultiSig on Solana runs on a program, which is code that lives on the Solana network. You pick the owners and how many must sign, such as 2-of-3. A payment only goes out once enough owners have signed on-chain. Ownbit's servers cannot sign for you, and one stolen phone is not enough to move funds.

Ownbit lists the program's address, 7uPTVnLrNM9bAdCGrfckz1ugJeRs5bEGcEgcwzPuFsAK, and its code in a public GitHub repo. The code is short and does four things. It sets up a MultiSig, lets an owner propose a payment, lets the others sign it, and sends it once enough have signed. Every owner has the same power, and there is one signing rule.

That matters if you read Ownbit's sales pages closely. The Solana MultiSig page talks of "weighted approvals". The team page lists roles, approved address lists and spend limits. The team contracts on GitHub are written for Ethereum-style chains. We found no roles or weights in the Solana code. Ask Ownbit which controls work on Solana before you plan a treasury around them.

If Ownbit shut down, you could still move the funds. Its MultiSig recovery guide shows how owners can call the Solana program on their own, using keys made from their seed phrases. That takes coding skills.

MultiSig works on 13 of the 18 chains. A web console lets teams check and sign waiting payments in batches. You log in by scanning a QR code, and each signature is still made on the phone.

Crypto inheritance and the 416-day accident protection

Ownbit's tool for passing on crypto is called Accident Protection MultiSig. If one owner goes silent for about 416 days, the other owners can get the funds out with fewer signatures. An owner resets the clock by signing a payment or tapping "Stay Active" in the app. It works on Solana, Bitcoin, Tron and Ethereum-style chains.

A plain MultiSig can fail badly. Say you need two signatures and one owner dies or loses a seed phrase. The money is stuck for good. Accident protection is the way out. A couple could set up a 2-of-2 wallet. If one of them stopped signing for about fourteen months, the other could take the funds out alone.

How it works depends on the chain, per Ownbit's MultiSig guide. On Ethereum-style chains, a contract runs the timer. On Solana, Bitcoin and Tron, Ownbit adds itself as one more signer. A 3-of-4 vault is made as 3-of-5. Ownbit says its key "only joins signing after the inactivity period". It also says "Ownbit never moves your funds alone".

Ownbit spells out the cost in its own comparison with Casa: "A timer counts; it does not judge." Heirs may wait up to fourteen months. The owner has to remember to stay active.

Ownbit pricing: membership levels and the free trial

Ownbit is free to download, and new users get a 7-day trial. After that, more wallets and MultiSig need a paid plan, billed by the year. These are the prices on the Ownbit website in October 2026:

Only Lv.3 comes with what Ownbit calls inheritable addresses. Ownbit says your keys and funds stay yours if you stop paying. It also says you can still recover your wallets after a plan runs out.

Ownbit 5.0: the rebuilt app released in October 2026

Ownbit 5.0 is the app rebuilt from scratch. Ownbit posted the Android release on 6 October 2026. It promised a new design, a new look and stronger security. On Android it is a brand-new app. You install it and restore your wallets with your seed phrase. Ownbit says your paid plan moves with you.

The old Android app still works but will get no more updates, the same post says. If you use it, plan the move. Check that your seed phrase backup works before you delete anything. On iPhone, the new version came as a normal update on the App Store in the same week.

The iPhone release notes also show an update from September 2026. It added WalletConnect, a common way to link a wallet to apps, for MultiSig wallets on Ethereum-style chains. Ownbit's Solana pages say nothing about linking to Solana apps or staking from the wallet.

Who Ownbit suits, and who should look elsewhere

Ownbit suits people who hold crypto for years on more than one chain and want shared control without buying hardware. Think of a family vault, or a couple planning who gets their coins. A small team holding stablecoins on Solana, Tron and Ethereum under one set of rules fits too.

It is a poor fit if you use Solana every day. If you trade, stake or use apps daily, the two-phone QR steps will slow you down. Ownbit's Solana pages do not cover app links either. It is also a weak match for a team that works only on Solana and wants its MultiSig to plug into other Solana tools.

The cold wallet needs a second phone that you keep offline for good. MultiSig needs a paid plan once the trial ends.

Is Ownbit safe? Closed-source app, no published audit

Ownbit never holds your keys, so the company cannot take or freeze your funds. The main risk is that you cannot check the app. Its code is not public, and Ownbit has not shared an outside audit. You are trusting BITTOOL to have built the signing app well.

WalletScrutiny is an outside project that tests whether wallet apps can be checked. It rates Ownbit as "No source for current release found". Its reviewers agreed the keys stay with the user. They could not match the app to any public code.

Ownbit does not hide this. Its security page says: "We would rather put our budget and attention into architecture you can verify than into a certificate." The page says you can decode a signing QR code by hand and read the public contracts. It also names what you still have to trust: the signer, how random its keys are, and whether the app you install is the real build.

Four more points are worth knowing:

• The Solana program's code is public, but we found no audit of it. Ownbit's docs do not say who can change the program. Look up its upgrade authority on a Solana explorer before you hold large sums there.
• With accident protection on Solana, Ownbit holds one of the wallet's keys. One key is not enough to sign, so Ownbit cannot move funds alone. By our reading, the Solana code has no timer in it. The 416-day wait then rests on Ownbit holding back its signature.
• Ownbit says it has had "zero security incidents" since 2017. That is the company's own claim. We found no outside report of a breach, and no outside proof of a clean record either.
• A phone is not a hardware wallet. It was not built just to guard crypto keys, and it is only safe while it stays offline.

Ownbit alternatives for Solana: Squads, Ledger and Keystone

The main Ownbit alternatives split by job. For shared control of Solana funds, Squads is a MultiSig tool built for Solana. For cold storage, hardware wallets such as Ledger and Keystone keep keys on a device made for the task.

Ownbit's edge is reach and cost. One app covers MultiSig on 13 chains, and the cold wallet reuses a phone you already own. The price you pay is an app you cannot inspect and a yearly fee. A hardware wallet is a one-off buy and holds keys on a device built for that job. It will not give you a family MultiSig for Bitcoin, Tron and Solana in one place.

Ownbit's blog makes its own case, and it is fair about where rivals are stronger. Its Casa post grants that Casa gives heirs human support, "a genuine strength for non-technical heirs".

BITTOOL, the company behind Ownbit

Ownbit is run by BITTOOL PTE. LTD. of Singapore. The same firm is named as the seller on the App Store. The wallet has run since 2017, per its website. Its GitHub account, bitbill, hosts the MultiSig contracts and some older code forks. We found no Ownbit token.