Comparison

UdotPay vs STB Superapp

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

UdotPay

Connect your cryptocurrency to real-world spending with a virtual payment card. Use it globally in over 100 countries like a regular bank card for everyday purchases.

Highlights
  • Apply for Mastercard crypto payment card
  • Connect crypto to real-world spending
  • Global spending in 100+ countries
  • Use like a regular bank card
Features
Read full description

用户可以通过 Udotpay 申请 Mastercard 加密支付卡,将加密货币与现实消费场景连接起来。在全球 100+ 国家和地区,用户都可以像使用普通银行卡一样进行消费。

About

STB Superapp

Features
Read full description

SpendTheBits is a self-custody crypto wallet for stablecoins and 13 chains: USDC, USDT, Bitcoin, Lightning, Ethereum, Solana, XRP, TRON and more. Earn yield on idle stablecoins, send, bridge, and get paid by AI agents — your keys never leave your phone. YOUR KEYS, YOUR CRYPTO • Fully self-custody: the seed phrase and private keys are generated and stored only in your phone's secure keychain — never on our servers • One recovery phrase for BTC, LTC, ETH, Base, Linea, BNB, POL, AVAX, SOL, XRP, TRX, FLR and SUI, plus USDC and USDT across chains • Bitcoin over Lightning: instant, low-fee payments from a node on your phone • Restore into any compatible wallet, any time — no lock-in EARN ON IDLE STABLECOINS • Put idle USDC to work in vetted on-chain vaults held by your own keys • A 0–100 Yield Safety Score routes deposits and a Treasury Auto-Defense circuit breaker can exit to liquid USDC on a safety breach • Observed yield, not projections; sends unwind just what you need, just in time PAY, AUTOPAY & STREAM • Send instantly to addresses or @handles • Recurring autopay from one signature — a revocable allowance, never an escrow • Stream salary, rent or vesting per second; claim whenever you like • Bridge USDC between chains with Circle CCTP GET PAID BY AI AGENTS • Your @handle doubles as an x402-payable endpoint: agents pay USDC over HTTP 402 straight to addresses only you control • Pay any x402 API from your wallet by pasting or scanning its URL SPEND • Buy gift cards from popular brands by paying in any crypto PROTECT & RECOVER • Recipient risk-screening and an anti-swap broadcast firewall • Scam-token quarantine: unverified airdrops never count as real funds • Spending guardrails: caps, allowlists, quiet hours, one-tap freeze • Clear-signing — see exactly what you approve • Social recovery via guardians and an inheritance flow NON-CUSTODIAL BY DESIGN No exchange, no order book, no fiat ramp: SpendTheBits is a wallet. Even the AI Copilot is prepare-only — it proposes, your device disposes. Crypto is volatile and involves risk. SpendTheBits is a non-custodial wallet; you are responsible for safeguarding your recovery phrase.

Screenshots

UdotPay4 screens
STB Superapp4 screens

Verdict

The call

UdotPay and STB Superapp are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
UdotPay versus STB Superapp: the parameters behind the verdict, then further details
ParameterUdotPaySTB Superapp
PriceFreeFree
Rating2.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequency—Every 2 days
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better16.4
Further details — not scored
Size53 MB72 MB
Age rating17+4+
DeveloperULINK Global Ltd.SPENDTHEBITS INC.

In-app purchases

None

UdotPay

No in-app purchases

None

STB Superapp

No in-app purchases

Questions

Is UdotPay free?
UdotPay is free to download, with no in-app purchases.
Is STB Superapp free?
STB Superapp is free to download, with no in-app purchases.
Do UdotPay or STB Superapp have ads?
Neither UdotPay nor STB Superapp shows ads.

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