These two are not really rivals: one is a paid, vendor-neutral credential that spans the whole digital-marketing field and verifies experience, while the other is a free badge proving one concrete platform skill. The choice is about what you want to signal. Here is the detailed comparison, beyond the table above.
The core difference
The OMCP (Online Marketing Certified Professional) is a vendor-neutral credential from OMCP, an independent standards body rather than a single platform such as Google or Meta. Instead of certifying you on one company’s ad product, it tests competency across the main digital-marketing disciplines - SEO, paid search, content, social, email, conversion optimisation, analytics and mobile - built on published industry competency standards. It pairs three proctored exams with a review of your documented experience and training.
The Google Ads Search certification is a free assessment on Google Skillshop that proves you can build and optimise Search campaigns in Google Ads. Crucially, “Google Ads certification” is not one exam: Search, Display, Video, Shopping, Apps and Measurement are separate assessments with separate badges, and this is the Search one. It proves a single, specific platform skill.
So OMCP says “I have broad, verified competence across digital marketing,” while Google Ads Search says “I can run Google Search campaigns.” One is breadth plus experience; the other is focused, current platform proof.
Cost compared
This is the starkest contrast between them:
- Google Ads Search: free. Both the assessment and all Skillshop training cost nothing, and there is no charge to retake or renew.
- OMCP: about US$395, which covers the three proctored exams plus the review of your experience, education and training. Retakes are charged separately (around US$225 for the base exam and US$150 per specialty), and if you qualify via the approved-course pathway, the training is bought from OMCP Registered Education Providers on top.
The price gap mirrors the difference in scope and verification: a free single-platform badge versus a paid, gated, cross-discipline credential. Confirm current pricing with each provider, since OMCP’s fees and pathways in particular can change.
Difficulty and time
Both are pitched above absolute-beginner level, but they ask for very different things:
- Google Ads Search: an intermediate online assessment, roughly 50 questions in 75 minutes (confirm at exam time), with an 80% pass mark and no proctor. There is no eligibility gate. Study is around 4-8 hours if you already run Search campaigns, or 15-25 hours over two to three weeks if you are new to Google Ads.
- OMCP: three remote-proctored exams - a base exam of 64-68 questions (around 75 minutes) plus two specialty exams of 17-28 questions each (around 30 minutes each), all passed within a 90-day window. Beyond the exams, OMCP reviews your documented experience and training. Preparation is often a few weeks of focused review for experienced marketers, or longer through the approved-course pathway.
The harder part of OMCP is usually not the exams but the eligibility gate: you must meet a documented experience-and-education pathway (for example 5,000 hours of experience, a degree plus 2,000 hours, or an approved course plus 1,000 hours). Neither OMCP nor Google publishes pass rates, and OMCP reports results only as pass or did-not-pass.
Recognition and who values it
They are recognised by different audiences for different reasons:
- Google Ads Search is recognised by clients and employers as proof of current Google Search skill. It matters most for paid-search and performance roles, and for freelancers and agency staff who need a credible platform badge to win or keep client work. Because it expires after a year, it reads as a current-skill signal.
- OMCP is recognised as a vendor-neutral, cross-discipline professional credential backed by documented experience plus approved training. Because it is paid and gated, it carries more weight as a signal of broad, verified competence than a free badge does - but it is also less about any one platform.
In short, an employer reads Google Ads Search as “this person can run Search ads now,” and OMCP as “this person has broad, experience-backed marketing competence.” Different signals for different hiring needs.
Career outcomes
- Google Ads Search supports: PPC and paid-search specialist, paid-search or performance-marketing manager and digital-marketing roles - anywhere running Google Search campaigns is core.
- OMCP supports: digital-marketing manager, SEO or PPC specialist, growth marketer, marketing director and digital-marketing consultant roles - anywhere broad, cross-discipline competence is valued.
Neither is a salary driver on its own; pay depends far more on role, results, location and experience than on any one certification. The two can be complementary: the free Google Ads badge proves a current platform skill, while OMCP signals the broader, verified competence that more senior or consulting roles look for. OMCP also runs a lower level, the OMCA (Online Marketing Certified Associate), for generalists earlier in their careers.
How to decide
Match the credential to your stage and your goal:
- You run or want to run Google Search campaigns and need a free, concrete, current skill badge → Google Ads Search.
- You are an experienced marketer or consultant who wants a vendor-neutral credential across many disciplines, and you can document the required experience → OMCP (or OMCA if you are a generalist not yet at the professional level).
- You are experienced and also run paid search → holding both is sensible: OMCP for breadth and verified competence, Google Ads Search for current platform proof.
The decisive factors are cost tolerance, your documented experience and whether you want platform depth or cross-discipline breadth. A beginner with no budget should start with the free Google Ads badge; an experienced marketer wanting a broad, recognised credential should weigh OMCP, eligibility gate and all.