Side by side
6sigmastudy vs ATI Testing
Both stand on exam prep apps. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan AndroidiPhoneWeb
6sigmastudy covers several Six Sigma certification levels with a free Yellow Belt route and paid advanced exams. Learners should compare belt prerequisites, exam validity, and recurring preparatory-course charges before enrolling.
Visit 6sigmastudy
Free plan AndroidiPhone
ATI’s app combines free TEAS practice with premium question coverage, configurable quizzes, explanations, and performance tracking. It is limited to ATI TEAS preparation and offers no score or admission guarantee.
Visit ATI TestingThe facts
| 6sigmastudy | ATI Testing | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Android, iPhone, Web | Android, iPhone |
| Lowest paid plan | See the plans | Premium 30-day access: $16.99, paid once |
| Plans published | 11 | 3 |
| Maker | 6sigmastudy | ATI Testing |
| Website | 6sigmastudy.com | atitesting.com |
| On exam prep apps | #72 of 125 | #76 of 125 |
6sigmastudy: what it does well
- Free Yellow Belt course and exam
- Web, Android, and iOS access
- Multiple belt and Lean Six Sigma levels
- Mobile flashcards and practice questions
- More than 2,100 listed training providers
What to know first
- Most online certifications expire after 180 days
- Paid plans start at 250.00 USD
- Preparatory extension renews at $35 a month
ATI Testing: what it does well
- Covers four TEAS subject areas
- Free version includes 80 questions
- Premium bank exceeds 2,300 questions
- Custom quizzes support 5–100 questions
- Includes study and exam modes
What to know first
- Focused on one exam
- Free access has limited questions
- Premium access does not auto-renew
- Prep products are final sale
Alternatives to 6sigmastudy Alternatives to ATI Testing The whole list