Career guides by Science of Apps for 2027 · Under $100

The best certifications
for $100 or less

The best certifications for $100 or less in 2027 are AWS Cloud Practitioner ($100), AWS AI Practitioner ($100), Google Cloud Generative AI Leader ($99), Google Ads and Analytics (free), HubSpot Inbound (free), Kaggle Learn (free), Harvard CS50 (free), freeCodeCamp (free) and ISC2 Certified in Cybersecurity, which has been free through ISC2 promotions.

By , FounderUpdated 4 min read

Share

Quick answer: What are the best certifications under $100?

  1. $100 — AWS Cloud Practitioner, AI Practitioner.
  2. $99 — Google Cloud GenAI Leader.
  3. Free — Skillshop, HubSpot, Kaggle, CS50, freeCodeCamp.
  4. Often free — ISC2 CC.

Key takeaways

  • Credible certifications don't have to be expensive.
  • Three proctored exams cost $100 or less.
  • Free certificates still need projects to impress.

You don't need a big budget for a credible certification. Three respected proctored exams cost $100 or less, and several recognised certificates are free. Here are nine.

What are the best certifications under $100? At a glance: $100; $99; Free; Often free.
At a glance: What are the best certifications under $100?

Nine certifications for $100 or less

Ranked for this reader. Costs and formats come from each issuer's own page, checked on 3 November 2026; prices change, so confirm before you book.

The best certifications for $100 or less in 2027: issuer, cost and format from official pages (costs as of November 2026)
#CertificationCostTimeProve it free
1AWS Certified Cloud PractitionerAmazon Web Services$100190 minutes, 65 questionsFree test
2AWS Certified AI PractitionerAmazon Web Services$100290 minutes, 65 questionsFree test
3Google Cloud Generative AI LeaderGoogle Cloud$99390 minutes, multiple choiceFree test
4Google Ads & Google Analytics Certifications (Skillshop)Google SkillshopFree4Self-pacedFree test
5HubSpot Inbound Marketing CertificationHubSpot AcademyFree5Self-pacedFree test
6Kaggle Learn Micro-Courses (ML, Python, SQL)Kaggle (Google)Free6Short micro-courses, a few hours eachFree test
7CS50: Introduction to Computer ScienceHarvard UniversityFree7Self-pacedFree test
8freeCodeCamp CertificationsfreeCodeCampFree8Self-pacedFree test
9ISC2 Certified in Cybersecurity (CC)ISC2See ISC2 page9Check issuerFree test

Prove it free before you pay for an exam

Science of Apps · free certification tests

Take the free test first. Pay for an exam only when you pass.

Every pick above has a matching free practice test on Science of Apps, one of the world's largest libraries of free certification tests (1,200+). Check your level before you pay for an exam, or add a verifiable credential to LinkedIn while you study. (Disclosure: we publish these tests; the certifications above earn us nothing.)

Each certification, and its price

  1. AWSAWS Certified Cloud Practitioner$100 cloud$100
  2. AWSAWS Certified AI Practitioner$100 AI$100
  3. Google CloudGoogle Cloud Generative AI Leader$99 AI strategy$99

Amazon Web Services · FoundationalTop pick for 2027

AWS Certified Cloud Practitioner

Cost
$1001
Format
90 minutes, 65 questions

$100; 90 minutes, 65 questions. AWS's entry exam covers cloud concepts, core services, security and billing. It's 90 minutes with 65 questions and costs $100, so it's the usual first cloud exam for beginners and non-technical staff.

Best for$100 cloud

Amazon Web Services · Foundational

AWS Certified AI Practitioner

Cost
$1002
Format
90 minutes, 65 questions

$100; 90 minutes, 65 questions. AWS's foundational exam covers AI, machine learning and generative AI concepts and how AWS services support them. It's 90 minutes with 65 questions and costs $100, so it suits cloud, tech and business staff who need AI literacy.

Best for$100 AI

Google Cloud · Foundational

Google Cloud Generative AI Leader

Cost
$993
Format
90 minutes, multiple choice

$99; 90 minutes. Google Cloud's foundational exam tests generative AI strategy for non-technical leaders: use cases, risks and adoption. It's 90 minutes of multiple choice and costs $99, one of the cheapest proctored AI credentials available.

Best for$99 AI strategy

HubSpot Academy · Beginner

HubSpot Inbound Marketing Certification

Cost
Free5

Free inbound marketing. HubSpot Academy's free Inbound Marketing certification teaches attracting, engaging and delighting customers. It takes a few hours and is respected in B2B and inbound marketing roles.

Best forfree marketing

Kaggle (Google) · Beginner

Kaggle Learn Micro-Courses (ML, Python, SQL)

Cost
Free6
Time
Short micro-courses, a few hours each

Free Python, SQL and ML. Kaggle's free micro-courses cover Python, pandas, SQL, data visualisation and machine learning, each in a few hours with hands-on notebooks and a free certificate. They're ideal practice alongside a structured course.

Best forfree data

Harvard University · Beginner

CS50: Introduction to Computer Science

Cost
Free7

Free CS certificate. Harvard's free introduction to computer science teaches C, Python, SQL and web development through demanding problem sets, with a free certificate. An optional paid verified certificate is available through edX.

Best forfree CS

freeCodeCamp · Beginner–Intermediate

freeCodeCamp Certifications

Cost
Free8

Free coding certifications. freeCodeCamp's free certifications in web design, JavaScript, Python, data analysis and more are earned by building projects that must pass automated tests. The projects make useful portfolio pieces.

Best forfree coding

ISC2 · Entry

ISC2 Certified in Cybersecurity (CC)

Cost
See ISC2 page9
Entry
No work experience required

Check ISC2's page for free-exam offers. ISC2's entry credential covers security principles, access control, networks and operations, with no work experience required. It's ANAB-accredited, and ISC2 has run promotions offering free training and exams.

Best forsecurity, often free

Proctored vs free certificates

TypeExamplesWeight with employers
Proctored examAWS CCP, AIP, GenAI LeaderHigher
Free certificateSkillshop, HubSpot, KaggleModerate, higher with projects

Table: Low-cost certification types

How we ranked these picks

We listed credible certifications priced at $100 or less on official pages, checked 3 November 2026.

Frequently asked questions

What's the best cheap certification?

AWS Cloud Practitioner or AI Practitioner at $100.

Are free certifications worth it?

Yes for learning; pair with projects.

Is there a proctored exam under $100?

Yes: Google Cloud GenAI Leader at $99.

Are prices the same everywhere?

AWS and Google Cloud list USD prices; local taxes may apply.

Is there a free test?

Yes. Science of Apps offers 1,200+ free certification tests.

Sources

  1. Amazon Web Services — AWS Certified Cloud Practitioner, official page (checked 3 Nov 2026)
  2. Amazon Web Services — AWS Certified AI Practitioner, official page (checked 3 Nov 2026)
  3. Google Cloud — Google Cloud Generative AI Leader, official page (checked 3 Nov 2026)
  4. Google Skillshop — Google Ads & Google Analytics Certifications (Skillshop), official page (checked 3 Nov 2026)
  5. HubSpot Academy — HubSpot Inbound Marketing Certification, official page (checked 3 Nov 2026)
  6. Kaggle (Google) — Kaggle Learn Micro-Courses (ML, Python, SQL), official page (checked 3 Nov 2026)
  7. Harvard University — CS50: Introduction to Computer Science, official page (checked 3 Nov 2026)
  8. freeCodeCamp — freeCodeCamp Certifications, official page (checked 3 Nov 2026)
  9. ISC2 — ISC2 Certified in Cybersecurity (CC), official page (checked 3 Nov 2026)
  10. Checked November 4, 2026. Figures that change — fees, salaries, prices — are reviewed every six months; if something is out of date, tell us.
Pass it on

Know someone who'd enjoy this?

Send it to them — one tap, no sign-up. Good ideas travel best between friends.

Keep exploring

Where to go from here

Join free

Get the ideas, not the noise.

Sign up with Google and we’ll send you short UX psychology tips by email — why people tap, stall and leave, and what to do about it. Unsubscribe anytime. Prefer something to keep? Get the free Laws of UX guide as a PDF.

Get the free Laws of UX PDFFree · no spam · unsubscribe anytime
Get certified free

Prove the skill before you pay for the exam.

Start with the free AWS Cloud Practitioner Practice Exam. 1,200+ free, test-based certifications graded on our server. Pass and get a founder-signed certificate with a credential ID employers can verify.

Free certification

Turn what you know into a credential.

Free, test-based UX, UI and product certifications. Answer real product scenarios, graded on our server, and earn a founder-signed certificate anyone can verify and you can add to LinkedIn.

  • Credential ID
  • QR verification
  • LinkedIn-ready
Free PDF · 74 pages · 2 editions

The Laws of UX, in one field guide

60 research-backed principles in 6 categories — what each one means, why it works on the human brain and how to use it on your own screens. Written by Sushant Singh, founder of Science of Apps, who has scaled consumer apps to lacs of users and spent 10+ years leading product across startups and digital businesses in the US, EU & India.

Pick your edition
Free PDF · 74 pages

Get Laws of UX by email

Choose your edition

You’ll also get occasional UX psychology tips. Unsubscribe anytime. Privacy policy

Free PDF · 90 pages · 2 editions

100+ Subscription Paywalls, decoded

110 real paywalls from top apps, taken apart, rated out of 5 and decoded with the Laws of UX — plus the frameworks, copy and checklists to ship your own. By Sushant Singh, founder of Science of Apps.

  • 110 paywalls rated
  • 34 Laws of UX
  • 12 frameworks

Which paywall scored 4.8 out of 5, and which scored 2.6? It’s all inside.

Pick your edition
Free PDF · 90 pages

Get 100+ Paywalls, Decoded by email

Choose your edition

You’ll also get occasional UX psychology tips. Unsubscribe anytime. Privacy policy