Money & business · payment system
UPI (Unified Payments Interface)
Hacker Approved
Instant, free bank-to-bank transfers that people in India use daily, praised for scale and convenience; the most common caveat is a poor experience for tourists.
Summarized from 88 comments.
Instant, free bank-to-bank transfers that people in India use daily, praised for scale and convenience; the most common caveat is a poor experience for tourists.
- recommend
- 58
- criticize
- 12
- months recommended
- 11 of 13
Why people love it
Instant, free bank-to-bank payments · 5
Nigh instant payment reconciliation, free and extremely convenient for individuals
Oct 2026 · commentThe payments are instantaneous and free; at least for P2P scenarios.
Jan 2026 · commentbuilt instant bank to bank transfer setups you can use at the grocery store
Mar 2026 · commentPositive everyday impact for users · 5
UPI has been a good quality of life improvement for everyone.
Jul 2026 · commentthey took to UPI just fine, and many now prefer it over cash
Jul 2026 · commentIf anything, the impact has been overwhelmingly positive.
Jul 2026 · commentWorks for rural, low-tech users · 3
This feature allows rural populations, poor people, small merchants, etc., to send and receive UPI payments, even without a smartphone.
Feb 2026 · commentIn some setups UPI doesn't even internet! Just an SMS is sufficient
May 2026 · commentI live in a small Himalayan village most of the year and I still make roughly 6-8 transactions a day.
Jul 2026 · commentBenefits government finances and tax · 4
Its costs is trivial compared to savings and efficiency it brings in overall system.
Jul 2026 · commentUPI payment has enabled tracking actual sales data and helped with tax collection.
Aug 2026 · commentthe costs to the government vs benefit to the Indian economy is fairly clear to me
Aug 2026 · comment
What people warn about
Hard for tourists to use · 4
UPI is not perfect but me as a white piggu tourist handling monopoly money isn't much better.
Aug 2026 · commentUPI would be even better if it were easier for tourists to onboard
May 2026 · commentIndia's UPI is practically impossible to use even for tourists in India.
Oct 2026 · commentFraud and platform dependence concerns · 2
UPI is now almost completely dependant on platform integrity
Feb 2026 · commentUPI fraud is on the raise and becoming a big challenge
Feb 2026 · commentState bears costs and risk · 4
counter-party risk isn't balanced between entities — it's taken on by the state. Sooner or later, there is going to be a cascade failure within this system
Jul 2026 · commentNPCI being a private body with transaction charges being borne by the Indian government is a net negative
Jul 2026 · commentI too want the government to monitor my transactions in real-time so they can disable access to my money
Jul 2026 · comment
What hackers pick instead
- PixFree, instant bank-to-bank transfers, praised as cheaper than card networks; critics object to government control and weak fraud recourse.65recommend
- GNU TalerPeople recommend it for giving payers cash-like privacy while staying compatible with banks and taxes, as free software with no trusted operator. The common caveat is that payees are identified and it needs a connection to a central exchange.37recommend
- x402Open protocol that uses HTTP 402 so clients pay per request in stablecoins without accounts or API keys. Main caveat: on-chain costs and latency make tiny, high-volume payments impractical.35recommend
- Visa cardWidely accepted, fast card payments with strong fraud protection and easy refunds, which people say are worth the fees. Critics most often object to high fees and the Visa-Mastercard duopoly.34recommend
- Lightning NetworkPeople recommend it for near-instant, cheap bitcoin payments, especially small ones. The most common caveat is centralization and unreliable fees.31recommend
Every quote
The 40 most detailed of 88 comments. Each links to the original.
This feature allows rural populations, poor people, small merchants, etc., to send and receive UPI payments, even without a smartphone.
Recommends · Feb 2026 · in “Europe's $24T Breakup with Visa and Mastercard Has Begun”
I live in a small Himalayan village most of the year and I still make roughly 6-8 transactions a day.
Recommends · Jul 2026 · in “UPI: Anatomy of a Transaction”
UPI is not perfect but me as a white piggu tourist handling monopoly money isn't much better.
Mixed · Aug 2026 · in “India built the biggest digital payments miracle: Now comes the bill”
Its costs is trivial compared to savings and efficiency it brings in overall system.
Recommends · Jul 2026 · in “UPI: Anatomy of a Transaction”
UPI payment has enabled tracking actual sales data and helped with tax collection.
Recommends · Aug 2026 · in “India built the biggest digital payments miracle: Now comes the bill”
the costs to the government vs benefit to the Indian economy is fairly clear to me
Recommends · Aug 2026 · in “Nitter and XCancel receive cease and desist notices”
Nigh instant payment reconciliation, free and extremely convenient for individuals
Recommends · Oct 2026 · in “Visa, Mastercard, major banks facing new litigation over 'anticompetitive' fees”
built instant bank to bank transfer setups you can use at the grocery store
Recommends · Mar 2026 · in “OpenClaw Is a Security Nightmare Dressed Up as a Daydream”
lower or non existent with these homegrown or local P2P payment systems
Recommends · Oct 2026 · in “Visa, Mastercard, major banks facing new litigation over 'anticompetitive' fees”
The payments are instantaneous and free; at least for P2P scenarios.
Recommends · Jan 2026 · in “Selling SaaS in Japan”
In some setups UPI doesn't even internet! Just an SMS is sufficient
Recommends · May 2026 · in “Brazil's Pix Payment System Faces Pressure from Visa and Mastercard”
UPI would be even better if it were easier for tourists to onboard
Mixed · May 2026 · in “Goodbye Visa and Mastercard: 130M Europeans switching to sovereign payment”
I have heard nothing but good about it, from my Indian friends.
Recommends · Jul 2026 · in “UPI: Anatomy of a Transaction”
This is the best possible system for handling government money.
Recommends · Jul 2026 · in “UPI: Anatomy of a Transaction”
The fee is also minimal and flat-rate with no profit incentive
Recommends · Jul 2026 · in “UPI: Anatomy of a Transaction”
UPI has been a good quality of life improvement for everyone.
Mixed · Jul 2026 · in “UPI: Anatomy of a Transaction”
they took to UPI just fine, and many now prefer it over cash
Recommends · Jul 2026 · in “UPI: Anatomy of a Transaction”
UPI is now almost completely dependant on platform integrity
Mixed · Feb 2026 · in “Europe's $24T Breakup with Visa and Mastercard Has Begun”
The UPI payment system in India seems to work really well.
Recommends · May 2026 · in “Goodbye Visa and Mastercard: 130M Europeans switching to sovereign payment”
If anything, the impact has been overwhelmingly positive.
Recommends · Jul 2026 · in “UPI: Anatomy of a Transaction”
UPI fraud is on the raise and becoming a big challenge
Mixed · Feb 2026 · in “Europe's $24T Breakup with Visa and Mastercard Has Begun”
counter-party risk isn't balanced between entities — it's taken on by the state. Sooner or later, there is going to be a cascade failure within this system
Criticizes · Jul 2026 · in “UPI: Anatomy of a Transaction”
NPCI being a private body with transaction charges being borne by the Indian government is a net negative
Criticizes · Jul 2026 · in “UPI: Anatomy of a Transaction”
I too want the government to monitor my transactions in real-time so they can disable access to my money
Criticizes · Jul 2026 · in “UPI: Anatomy of a Transaction”
India's UPI is practically impossible to use even for tourists in India.
Criticizes · Oct 2026 · in “Visa, Mastercard, major banks facing new litigation over 'anticompetitive' fees”
it's been an absolute nightmare for a tourist to play along
Criticizes · Aug 2026 · in “India built the biggest digital payments miracle: Now comes the bill”
Centralized and KYCd, yes. Private? Not really.
Criticizes · Jul 2026 · in “UPI: Anatomy of a Transaction”
Honestly I wish UPI from India or Pix from brazil were implemented at a global scale, they are so good.
Recommends · Dec 2025 · in “I wasted years of my life in crypto”
No PII, just a UPI ID is given and the user gets a push notification in Android/iOS app for approval
Recommends · May 2026 · in “Goodbye Visa and Mastercard: 130M Europeans switching to sovereign payment”
Physically a hassle, technically inferior, putting customer at the mercy of the merchant device
Recommends · Aug 2026
it's great infrastructure when it works, but more needs to be done with global UPI integration
Mixed · Aug 2026 · in “India built the biggest digital payments miracle: Now comes the bill”
if the world can implement something like UPI or even PIX, those seem to be the better option
Recommends · Dec 2025 · in “I wasted years of my life in crypto”
Once you have sane system like pix or upi, there is far less need for chargebacks and frauds.
Recommends · Oct 2026 · in “Visa, Mastercard, major banks facing new litigation over 'anticompetitive' fees”
UPI ensures customer controls how much money is being transferred. More secure. Less hassle.
Recommends · Aug 2026 · in “India built the biggest digital payments miracle: Now comes the bill”
peak developed world financial infrastructure, ran as a utility under government direction
Recommends · Jul 2026 · in “UPI: Anatomy of a Transaction”
Handling transactions of this volume is an amazing technological feat, kudos to the team!
Mixed · Jul 2026 · in “UPI: Anatomy of a Transaction”
UPI is genuinely so good that most of you do not know what you are missing out on
Recommends · Dec 2025 · in “I wasted years of my life in crypto”
UPI is fantastic software and the pride of great software engineering from India
Recommends · Jul 2026 · in “UPI: Anatomy of a Transaction”
India introduced UPI in 2016, it now handles >80% of digital payments there
Recommends · Feb 2026 · in “Europe's $24T Breakup with Visa and Mastercard Has Begun”
I only notice one problematic thing there in your link: Wrong recipient.
Mixed · Oct 2026 · in “Visa, Mastercard, major banks facing new litigation over 'anticompetitive' fees”
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