Flash Transfer vs Duality Wallet
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Flash Transfer
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Flash Transfer connects the crypto wallet you already use to cash. Add cash to your wallet, or turn your digital assets back into cash, without ever handing over your keys. KEY FEATURES: โข Connect Your Own Wallet: Flash Transfer never creates, stores or controls a wallet for you โข Cash In and Cash Out: fund your wallet, or withdraw in local currency โข Multi-Chain Support: Solana, Stellar โข You Sign, Always: every transaction is approved in your own wallet app, on your device โข NFT: view the NFTs held in your connected wallet โข Fast & Easy: a clear, simple flow from first tap to confirmation You are both the sender and the recipient: you convert your own funds between cash and digital value. Cash handling is performed by licensed payment providers and their authorised agents, under their own regulatory permissions. Flash Technologies holds no wallet, no keys and no customer funds, and cannot move your assets. Only you can, from your own wallet. Identity verification is required before your first transaction. Availability varies by country. Your wallet. Your keys. Your control
Duality Wallet
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Cash on your phone. As simple as Apple Pay, as fast as a text message, and as open as email. Duality is a self-custodial wallet that finally makes bitcoin feel like money you can actually use. Spend it, send it, get paid in it, in seconds, with no bank or middleman taking a cut. MONEY THAT MOVES LIKE A MESSAGE Payments settle over the Lightning network in seconds, not the three-day "pending" you're used to. Send, and it's done. TWO POCKETS, ONE WALLET Keep a Digital Cash balance to spend day to day, and a Bitcoin balance to hold. Swipe between them, and convert one to the other in a tap. GET PAID LIKE EMAIL Claim your own Lightning address: you@dualitywallet.money. Anyone, on any Lightning wallet, can pay you. No app lock-in, no account numbers. PAY IN A TAP Tap to pay over NFC, or scan any QR code with Quick Pay. Save the people and places you pay often as Favourites and settle up in two taps. SIGN IN WITH A PASSKEY, BACKED BY YOUR RECOVERY PHRASE Create and unlock your wallet with your fingerprint or face, with no password to remember. Your recovery phrase is the backup that always works: save it when you set up, and it restores your wallet on any device, whatever happens to your phone. YOUR KEYS, YOUR MONEY Your keys are generated on your device and never leave it. There's no account, no email signup, and no company that can freeze, spend, or block your balance. No analytics or tracking, in the app or on our site. SECURED BY BITCOIN Duality is built on Spark, a bitcoin layer 2, using the Breez SDK. Your money is secured by the most open, decentralised monetary network there is. Value you hold directly, not an IOU. Money without middlemen. Download Duality and try it today. Self-custodial means you're in control and responsible for your own access. Bitcoin's value can go up and down. Duality is not a bank and does not offer insured deposits.
Screenshots
Verdict
The clearest difference is update cadence: Duality Wallet at every 5 days against Flash Transfer's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Flash Transfer ships an update every 9 months, Duality Wallet every 5 days. The most recent releases landed on October 11, 2026 and October 14, 2026 respectively.
| Parameter | Flash Transfer | Duality Wallet |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months | Every 5 days โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPod |
| Requires iOS | 15.0 โ better | 15.1 |
| Further details โ not scored | ||
| Size | 55 MB | 50 MB |
| Age rating | 17+ | 17+ |
| Developer | Flash Technologies LLC FZ | Duality Wallet Pty Ltd |
In-app purchases
Flash Transfer
No in-app purchases
Duality Wallet
No in-app purchases
Questions
Is Flash Transfer free?
Is Duality Wallet free?
Do Flash Transfer or Duality Wallet have ads?
Which is updated more often, Flash Transfer or Duality Wallet?
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