Comparison

Payd vs Horizon Sigma

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

Head to head
About

Payd

Features
Read full description

PayD is a digital payment app designed for international visitors in Vietnam. It allows you to pay instantly at local merchants using USDT, credit cards, or mobile wallets; eliminating the need for cash exchanges and high foreign transaction fees. Top up your balance, scan any supported local QR code, and pay seamlessly in seconds. Key Features: - Crypto & USDT Payments: Spend USDT directly at supported local businesses across Da Nang. - No Bank Account Required: Top up and pay straight from your crypto wallet. - Multiple Payment Options: Full support for USDT, Visa, Mastercard, Apple Pay, and Google Pay. - Fair & Transparent FX: Competitive exchange rates with zero tourist markups; view exact costs before confirming every transaction. - Instant QR Scanning: Scan local merchant QR codes and complete payments in seconds. - Bank-Grade Security: Funds and personal data protected to international security and encryption standards. - Seamless Local Experience: Skip exchange counters and cash confusion; pay the way Vietnamese pays. How PayD Works 1. Top Up: Load funds using USDT, or pay directly via Cards, Apple Pay, or Google Pay. 2. Scan QR: Open the app and scan the merchant's QR code at supported venues. 3. Confirm: Check the conversion rate and approve your transaction instantly. Customer Support Need assistance with a payment or top-up? Our support team is available 24/7 in-app or via support@payd.com. PayD - Pay Crypto, Go Local.

About

Horizon Sigma

Features
Read full description

Horizon Sigma is a cutting-edge technology platform providing high-precision trading signals driven by quantitative models and real-time market data. Our system leverages advanced algorithms to deliver actionable insights and robust risk management tools to optimize portfolios and maximize overall investment efficiency for our users. - Trading Signals Access the latest quantitative market signals as soon as they are published to stay ahead of the curve. - Order Tracking Follow buy and sell entries with complete transparency on timing, price, and positioning. - NAV Updates Monitor your portfolio's health with real-time updates on your Net Asset Value (NAV). - Performance Overview Review historical returns, track drawdowns, and analyze key performance metrics at a glance through our intuitive dashboard.

Screenshots

Payd4 screens
Horizon Sigma3 screens

Verdict

The call

The clearest difference is update cadence: Horizon Sigma at every 5 days against Payd's fortnightly. Horizon Sigma also leads on iOS requirement (13.0 vs 16.6). 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

Payd ships an update fortnightly, Horizon Sigma every 5 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard2 real differences ยท 4 level
Payd versus Horizon Sigma: the parameters behind the verdict, then further details
ParameterPaydHorizon Sigma
PriceFreeFree
Update frequencyFortnightlyEvery 5 days โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPod โ€” better
Requires iOS16.613.0 โ€” better
Further details โ€” not scored
Size86 MB27 MB
Age rating4+17+
DeveloperPayd Joint Stock CompanyHoang Hiep Ung

In-app purchases

None

Payd

No in-app purchases

None

Horizon Sigma

No in-app purchases

Questions

Is Payd free?
Payd is free to download, with no in-app purchases.
Is Horizon Sigma free?
Horizon Sigma is free to download, with no in-app purchases.
Do Payd or Horizon Sigma have ads?
Neither Payd nor Horizon Sigma shows ads.
Which is updated more often, Payd or Horizon Sigma?
Payd ships an update fortnightly, and Horizon Sigma every 5 days. Most recently, Payd was updated on October 30, 2026 and Horizon Sigma on October 31, 2026.

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