This DNA test comparison for genealogy and family history explains how the major DNA testing services differ and what to consider before choosing a DNA test. Choosing a DNA test for genealogy is not simply a matter of finding the cheapest kit or the company with the most impressive ethnicity estimate. Different DNA testing services have different databases, genealogy tools, matching features, geographic strengths, and research options. If your goal is to find relatives, build a family tree, investigate an unknown ancestor, or explore your genetic ancestry, the right DNA testing service will depend on what you want to discover. If you are looking for a more direct recommendation, see our guide to the best DNA tests for genealogy.
Quick Fact: The Best DNA Test Depends on Your GoalA DNA test that is excellent for finding relatives may not be the best choice for investigating a direct paternal line or deep ancestry. Before buying a test, decide what you want your DNA results to help you discover.

DNA Test Comparison at a Glance

Our DNA test comparison focuses on the features that matter most for genealogy, including DNA matching, family-tree integration, geographic coverage, DNA test types, privacy, and additional research tools.
DNA Test Best For Genealogy Focus DNA Matching
MyHeritage DNA International genealogy and family history Strong Yes
AncestryDNA Family trees and finding relatives Strong Yes
23andMe Ancestry and additional genetic insights Moderate Yes
FamilyTreeDNA Advanced genetic genealogy Very strong Yes
Living DNA Regional ancestry research Moderate Yes
Features, pricing, databases, availability, and terms can change. Always check the provider’s current information before purchasing.

What Should You Compare When Choosing a DNA Test?

There are several factors worth considering before choosing a DNA testing company. A good comparison should look beyond the advertised ethnicity estimate and consider how useful the service will be for your actual genealogy research.

1. DNA Matching Database

If your goal is to find relatives, the people in a company’s database can be more important than the ethnicity estimate itself. A larger or particularly relevant database can increase your chances of finding useful matches, but database size alone does not guarantee better results. The geographic distribution and ancestry of the testers also matter.

2. Family Tree Integration

For genealogy research, it is useful when DNA matches can be examined alongside family trees, surnames, locations, and historical records. Family-tree integration can help you turn a DNA match into a research lead that can then be investigated using documentary evidence.

3. Types of DNA Testing

Most beginners encounter autosomal DNA testing. More advanced researchers may also be interested in Y-DNA or mtDNA, which answer different genealogy questions.

4. Geographic Coverage

If your ancestors came from a particular country or region, consider whether the testing company’s database has useful representation from that area.

5. Raw DNA Data

Some services allow customers to download their DNA data and use it with other genealogy tools. Availability and terms vary between providers.

6. Privacy and Data Controls

DNA is highly personal information. Before testing, review the provider’s current privacy policy, research participation options, data deletion procedures, and other terms.
Genealogy TipDo not choose a DNA test based on ethnicity estimates alone. If your main objective is genealogy, DNA matching and the tools available for investigating those matches may be much more important.

MyHeritage DNA

Best for: international family history research and combining DNA with genealogy. MyHeritage is strongly focused on genealogy and combines DNA matching with family-tree research and historical resources. This can make it particularly useful for researchers who want to investigate relatives and family branches across national borders.

Why Consider MyHeritage?

  • Genealogy-focused platform
  • DNA matching
  • Family-tree integration
  • International genealogy resources
  • Tools for investigating DNA matches
  • Support for combining DNA evidence with traditional genealogy
Who May Benefit Most?MyHeritage may be especially interesting if your family history is international or if you want a platform that combines DNA testing with family-tree research.
Check the current MyHeritage DNA offering

AncestryDNA

Best for: finding relatives and combining DNA with a large genealogy ecosystem. AncestryDNA combines consumer DNA testing with Ancestry’s family-tree and historical-record ecosystem. For genealogists, this combination can be useful because DNA matches can be investigated alongside family trees and documentary records.

Why Consider AncestryDNA?

  • DNA matching
  • Family-tree integration
  • Large genealogy ecosystem
  • Historical records
  • Tools for investigating potential relationships
If your main goal is building a family tree and finding relatives, AncestryDNA is one of the major services worth comparing.

23andMe

Best for: people interested in ancestry alongside additional genetic insights. 23andMe has historically combined ancestry information with other genetic reports, although its current products, availability, and features should always be checked before purchasing. For someone whose primary goal is traditional genealogy, it is important to compare the family-history tools and DNA matching experience with more genealogy-focused providers.
Important DistinctionA service can be excellent at providing ancestry or genetic reports without necessarily being the strongest choice for traditional genealogy research. Think about the research tools you will actually use after receiving your DNA results.

FamilyTreeDNA

Best for: advanced genetic genealogy and specific paternal or maternal-line research. FamilyTreeDNA is particularly relevant to researchers interested in more specialized genetic genealogy. Unlike a basic autosomal genealogy test, FamilyTreeDNA also offers testing options designed for investigating direct paternal and maternal lines.

Why Consider FamilyTreeDNA?

When Y-DNA MattersY-DNA follows a direct paternal line, making it useful for specific surname and paternal-line research questions. It is not a replacement for autosomal DNA; it answers a different type of genealogy question.

Living DNA

Best for: researchers interested in regional ancestry and specific geographic populations. Living DNA focuses on ancestry analysis with particular attention to regional ancestry in certain populations. Its usefulness will depend heavily on your family background and what you want to learn from your DNA.

Why Consider Living DNA?

  • Regional ancestry information
  • Ancestry DNA testing
  • DNA matching features
  • Geographic ancestry research
As with all DNA services, check the current product details and availability in your country before purchasing.

Autosomal DNA vs. Y-DNA vs. mtDNA

One of the most important distinctions in genetic genealogy is the type of DNA being tested.

Autosomal DNA

Autosomal DNA comes from both sides of your family and is the most common type of consumer genealogy DNA test. It is useful for finding relatives across many branches of your family tree.

Y-DNA

Y-DNA follows a direct paternal line. It can be particularly useful for surname studies and investigating a specific paternal lineage.

mtDNA

Mitochondrial DNA follows a direct maternal line and can help investigate a specific maternal lineage.
Research TipIf you are a beginner looking for cousins and family connections, autosomal DNA is usually the natural starting point. More specialized tests become useful when you have a specific research question.

Which DNA Test Is Best for Finding Relatives?

If finding biological relatives is your main goal, focus on the quality and relevance of the company’s matching database. You should also consider whether the service provides useful information about shared DNA, predicted relationships, shared matches, family trees, and other genealogy clues. Once you have results, our guide to how DNA matching works can help you understand the basics.

Which DNA Test Is Best for International Genealogy?

There is no universal answer because the usefulness of a DNA database depends on where your relatives and other testers are located. If your ancestors came from Europe, Asia, Africa, North America, or another region, investigate which provider has the strongest relevance to that particular population. This is one reason why two people can have very different experiences with the same DNA testing company.

DNA Testing Privacy: What Should You Check?

Before purchasing a DNA test, read the provider’s current privacy and data-management policies. Pay particular attention to:
  • How your DNA data is stored
  • Whether you can participate in research
  • Whether research participation is optional
  • Whether DNA data can be deleted
  • What happens if you close your account
  • How the company handles law-enforcement requests
  • Whether your data can be transferred or shared
Privacy ReminderPrivacy policies can change. Review the current policy of the company you are considering rather than relying solely on an older comparison article.

How Much Do DNA Tests Cost?

DNA test prices change frequently, especially during seasonal promotions. Some services also offer subscriptions or additional genealogy features after you purchase a DNA kit. For that reason, compare the total cost of the research experience, not simply the advertised kit price. Before ordering, check:
  • Current DNA kit price
  • Shipping costs
  • Whether return shipping is included
  • Subscription requirements
  • Access to family-tree features
  • Access to historical records
  • Additional DNA analysis options

Which DNA Test Should You Choose?

The answer depends on your research goal.
  • For international genealogy: Consider MyHeritage.
  • For family trees and finding relatives: Consider AncestryDNA.
  • For ancestry plus additional genetic reports: Consider 23andMe.
  • For advanced genetic genealogy: Consider FamilyTreeDNA.
  • For regional ancestry research: Consider Living DNA.
These are starting points rather than absolute rankings. Your family background and research goals should determine your choice.
Our Bottom LineFor genealogy, the most important question is not “Which company has the best ethnicity estimate?” It is “Which service gives me the best tools and database for answering my family-history question?”

DNA Test Comparison vs. Best DNA Tests

If you want a detailed comparison of the major providers, this DNA test comparison is the place to start. If you want a simpler recommendation based on different genealogy goals, read our guide to the best DNA tests for genealogy.

What to Do After Choosing a DNA Test

  1. Choose a DNA testing provider based on your research goal.
  2. Order your DNA test from the provider.
  3. Complete the sample according to the company’s instructions.
  4. Wait for your results.
  5. Review your DNA matches.
  6. Build or improve your family tree.
  7. Compare shared matches and family trees.
  8. Use historical records to verify potential relationships.
If you are new to genetic genealogy, start with our Getting Started With DNA Testing for Genealogy guide.

Free DNA Genealogy Tools

Once you have DNA results, you can use additional tools to help investigate your matches and family history.

Frequently Asked Questions About DNA Test Comparison

Which DNA test is best for genealogy?

There is no single best DNA test for every genealogist. The best choice depends on your goals, family background, geographic ancestry, and the type of DNA research you want to perform.

What is the difference between MyHeritage and AncestryDNA?

Both provide autosomal DNA testing and DNA matching, but they have different genealogy ecosystems, databases, tools, and geographic strengths. Compare their current features based on your own family-history goals.

Is a larger DNA database always better?

Not necessarily. A larger database can create more opportunities for matches, but geographic distribution and the ancestry of the people in the database also matter.

Should I choose a DNA test based on ethnicity estimates?

No. Ethnicity estimates can be interesting, but they should not be the only factor in a genealogy decision. DNA matching and genealogy tools are often more useful for identifying relatives and researching family history.

Can I use DNA results from one company somewhere else?

Some companies allow customers to download or upload DNA data, while others have restrictions. Check the current policies of both services before transferring DNA data.

Is Y-DNA better than autosomal DNA?

No. They answer different questions. Autosomal DNA is useful for finding relatives across many branches of your family tree, while Y-DNA focuses on a direct paternal line.

How often do DNA test prices change?

DNA companies frequently run promotions and change product or subscription pricing. Check the provider’s current website before purchasing.

Final Thoughts

Comparing DNA tests is about more than comparing prices or ethnicity percentages. The most useful test for genealogy is the one that gives you the right combination of DNA matches, genealogy tools, database coverage, and research options for your particular family history. Start with your research goal, compare the current offerings, and then combine your DNA results with traditional genealogy records. Use this DNA test comparison as a starting point, then check each provider’s current products, pricing, availability, and privacy policies before ordering. For a simpler overview, continue to our guide to the best DNA tests for genealogy.
Key TakeawayThere is no universal winner in DNA testing. The right choice depends on what you want to discover, where your ancestors came from, and which genealogy tools you are most likely to use.