Comparison guide · Offshore delivery

Offshore Software Development: Sri Lanka vs India, the Philippines and Vietnam

Most offshore comparisons rank countries as if a country could write software. The supplier writes the software; the country decides the time zone you work in, the depth of the market you are hiring from and the law your contract sits beside. Code Sage Labs is a Sri Lankan company, so treat this as an interested comparison and verify anything that affects your decision.

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By Anjula Paulus, Founder and software engineer · Published 16 October 2026 · 9 min read

Key takeaways

Choose the country for time zone and market depth; choose the supplier for everything else.
Sri Lanka and India share a UTC+5:30 day; Vietnam and the Philippines sit further east.
No Asian destination overlaps a United States working day without one side moving.
Market depth matters only if you need many parallel teams or a rare specialism.
Run the same paid discovery with two suppliers before committing to either.

Terms used in this comparison

Offshore vocabulary is used loosely in sales conversations, and two suppliers can describe very different arrangements with the same word. These are the meanings used throughout this guide.

Offshore — a supplier in a distant country and time zone, usually chosen for cost and capacity.
Nearshore — a supplier within a few hours of your own working day, usually in a neighbouring region.
Offshore development centre — a team in the supplier's office working only on your product, under your direction.
Build-operate-transfer — the supplier recruits and runs a team that you later take over as your own legal entity or staff.
Staff augmentation — individual engineers join your team and your process; you manage the work.
Project outsourcing — the supplier owns scope, estimate and delivery, and reports results rather than hours.
Overlap window — the hours per day in which both sides are at work and a question can be answered without waiting a night.

What actually differs between the four

Four things vary by country in a way the supplier cannot change: the clock, the size and shape of the local industry, the legal and tax environment your contract meets, and the pool of people the supplier recruits from. Everything else that matters, including engineering judgement, communication, quality control and honesty about risk, varies far more between two firms in one city than between the four countries.

That is why a shortlist built from country rankings tends to perform worse than a shortlist built from two or three named suppliers you have tested with real work. Use the country to narrow the field, not to pick the winner.

The four destinations side by side

Each line below compares one dimension across all four destinations. Rates are deliberately absent: published country averages mix junior and senior work, agency and freelance supply, and currencies that move, so they mislead more often than they help. Ask two suppliers for a priced proposal against the same written scope instead.

Time zone — Sri Lanka and India are UTC+5:30, Vietnam UTC+7, the Philippines UTC+8. None of the four observes daylight saving, so the gap to your own clock changes when yours changes, not when theirs does.
Industry size — India is the largest technology services market of the four by a wide margin, the Philippines and Vietnam are large and growing, and Sri Lanka is the smallest.
Supplier mix — India spans one-person shops to listed firms employing tens of thousands; Sri Lanka and Vietnam are weighted towards small and mid-sized firms; the Philippines has deep business-process and support operations alongside its engineering firms.
Specialist depth — a rare platform, regulated-industry or large parallel-team requirement is most likely to be met in India; the other three are stronger for one or two focused product teams.
English in delivery roles — English is a normal working language in Indian, Sri Lankan and Philippine delivery teams, and more variable in Vietnam outside client-facing roles. Verify this with the engineers on your project, never by country.
Overlap with the United Kingdom and Europe — Sri Lanka and India cover a European morning and part of the afternoon, Vietnam and the Philippines only the early morning.
Overlap with Australia and East Asia — the Philippines and Vietnam are two to three hours behind Sydney, Sri Lanka and India four and a half to five and a half.
Overlap with the United States — none of the four overlaps a United States working day. Someone works outside their own daylight, or the handover becomes asynchronous by design.
Data protection law — India has a Digital Personal Data Protection Act, Sri Lanka a Personal Data Protection Act, the Philippines a Data Privacy Act, and Vietnam a personal data protection decree. Confirm the current text and enforcement status before relying on any of them.
Contracting — cross-border agreements in all four are commonly written under English, Singapore or the client's own law with arbitration. Choose the forum deliberately; local enforcement is slow everywhere.

The time zone is the decision you live with daily

Market depth is a procurement question you answer once. The overlap window is a question you answer every working day for the life of the engagement, and it quietly sets how your team works. With four or more shared hours you can hold a normal conversation, review work live and unblock people the same day. With one or two, every question costs a night, and the engagement only works if written handovers, clear acceptance conditions and genuine autonomy are built in from the start.

A working day of 09:00 to 18:00 in Colombo or Bengaluru is 03:30 to 12:30 in London in winter, so about three and a half hours of a London working day are shared, and about four and a half once British Summer Time starts. The same day in Hanoi or Manila shares roughly one to two hours with London, and six or more with Singapore and Sydney.

What the country does not tell you

Attrition, seniority on your account, how a supplier behaves when an estimate is wrong, whether the people in the pitch are the people who write the code, and whether you will own what is built are all supplier facts. They vary enormously inside every one of these four markets, and they are the facts that decide whether a project succeeds.

Two of these carry more weight than buyers expect. The first is where your project ranks by revenue inside the supplier: a small account at a large firm gets the attention a small account gets. The second is who holds the knowledge, because a team with one irreplaceable engineer is a risk in any country.

Will the engineers in the proposal be on the project in month three?
What is the supplier's turnover on long-running accounts?
Where would our account sit in their revenue, and who is our escalation?
Who owns the repository, the cloud account and the deployment pipeline?
What happens to the work if the relationship ends next quarter?

A decision rule

Apply these in order and stop at the first one that matches your situation.

Rule 1: if you need several parallel teams, a rare specialism or a regulated-industry track record, start in India, because only its market reliably has that depth.
Rule 2: if your own working day is European, British, African or Gulf, prefer UTC+5:30 and shortlist in Sri Lanka or India.
Rule 3: if your working day is Australian, Singaporean or East Asian, prefer the Philippines or Vietnam.
Rule 4: if your working day is North American, accept that the model is asynchronous and choose the supplier with the best written communication, not the smallest time gap.
Rule 5: if continuity matters more than scale, which is usually true for a single long-lived product, weight team stability and seniority on your account above every country-level factor.
Rule 6: if two destinations still look equivalent, run the same paid discovery with one supplier in each and decide on the questions they ask, not the documents they produce.

Due diligence that applies in every country

The checks below do not change with the destination. Run them identically on every supplier you shortlist, and treat a refusal to answer as an answer.

A named, verifiable project close to your own problem
A conversation with an engineer who will do the work
Written assumptions, exclusions and acceptance conditions
Client-controlled repositories, cloud accounts and secrets
A security and data-handling answer proportionate to your data
An exit clause with handover obligations and a support window

Questions

Common questions about sri lanka vs india, philippines, vietnam

Is Sri Lanka or India better for offshore software development?

They share a time zone, so the choice is about market depth against account attention. India has far more suppliers and the only reliable depth for rare specialisms or many parallel teams. Sri Lanka is a smaller market of mostly small and mid-sized firms, where a modest project is more likely to be a significant account. Compare named suppliers, not the two countries.

Which offshore country works best with United States hours?

None of Sri Lanka, India, Vietnam or the Philippines overlaps a United States working day. If you need live daytime cover, look at Latin America instead. If asynchronous delivery is acceptable, choose on written communication, clear acceptance conditions and autonomy rather than on the size of the time gap.

Why does this guide not compare hourly rates by country?

Published country averages mix junior and senior work, freelance and agency supply, and currencies that move, so two suppliers in one city can sit either side of their national figure. A priced proposal from two suppliers against the same written scope tells you more than any country average.

Does the offshore country affect who owns the code?

Ownership comes from the contract, not the country. State in writing that the client owns source code, designs, infrastructure definitions and pipelines, hold the repositories and cloud accounts in client-controlled accounts from day one, and agree the law and forum for disputes deliberately.

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