What is the difference between AIDA and SSI freediving certifications?

Both AIDA and SSI are internationally recognised freediving certifications. AIDA is the oldest organisation and the official governing body for freediving competitions. SSI puts more emphasis on digital learning materials and flexible scheduling. The practical skills and safety standards are virtually identical at each level.

Is AIDA or SSI recognised worldwide?

Yes, both are globally recognised. You can use an AIDA or SSI certification to join training sessions and courses at freediving schools worldwide. Neither has a significant advantage over the other for recreational freedivers.

Can I switch between AIDA and SSI after getting certified?

Yes. Cross-certification between AIDA and SSI is possible. Most schools will accept your existing certification level regardless of organisation. You may need to show your dive logbook and demonstrate core skills before advancing to the next level with a different agency.

Which certification is better for competitive freediving?

AIDA is the governing body for official freediving competitions. If you plan to compete in AIDA-sanctioned events, an AIDA certification is the natural choice. SSI is generally a better fit for recreational divers and those who want integrated digital training materials.

AIDA vs SSI Freediving: Which Certification Should You Choose?

Q: Does The Gate Freediving offer both AIDA and SSI?

Yes. The Gate Freediving in Dahab offers both AIDA and SSI certifications for the Beginner Freediving Course and Advanced Freediving Course. You choose which organisation you prefer when you book.

When you book a freediving course, one of the first questions you’ll face is: AIDA or SSI? Both are internationally recognised. Both certify you to the same depth. The requirements to pass are identical. So why does the choice exist, and does it actually matter which one you pick? Here’s an honest breakdown so you can decide before you arrive.

The Short Answer

For most beginners, it genuinely doesn’t matter. AIDA 2 and SSI Level 1 will open the same doors, be recognised at the same dive centres, and have the same practical value in the water. The differences only become meaningful if you plan to compete, or if you want to continue training at a centre that only offers one agency.

At The Gate Freediving, we offer both. You choose when you book your course, and if you’re genuinely unsure, just ask us.

What AIDA vs SSI Freediving Certification Actually Means

AIDA International

AIDA (Association Internationale pour le Développement de l’Apnée) is the oldest and most widely recognised freediving-specific organisation in the world. Founded in 1992, it created the certification system most of the freediving world runs on. AIDA also governs all major competitive freediving: if you ever want to enter a freediving competition, you will almost certainly need an AIDA card or compete under AIDA rules.

SSI (Scuba Schools International)

SSI is a large dive training agency that covers both scuba and freediving. It has an enormous global network: more SSI-affiliated dive centres exist worldwide than AIDA-affiliated ones. SSI freediving courses use a digital learning platform and tend to be well-structured for recreational divers who may also be doing scuba alongside freediving.

How They Compare at Entry Level

This is the most important thing to understand: at the beginner level (AIDA 2 / SSI Level 1) and intermediate level (AIDA 3 / SSI Level 2), the practical requirements are essentially the same.

	AIDA 2 / AIDA 3	SSI Level 1 / Level 2
Recognised by	AIDA International	SSI (Scuba Schools International)
Depth certified to	20m (L1) / 30m (L2)	20m (L1) / 30m (L2)
Certification requirements	Identical at entry level	Identical at entry level
Accepted worldwide	Yes	Yes
Digital certification card	Yes	Yes
Community / competition focus	Strong, AIDA runs all major competitions	Recreational focus, broader dive industry
Best if you want to…	Compete or train in the competition world	Dive recreationally with maximum centre access

Both certifications are issued digitally. Both are recognised worldwide. Neither gives you an advantage over the other when renting equipment, joining a training session, or booking a course at another centre.

Where the Differences Actually Matter

If you want to compete

AIDA is the clear choice. All major freediving competitions, national and international, are run under AIDA rules. AIDA records are what the freediving world tracks. If there’s any chance you’ll want to enter a competition, even casually, getting AIDA certified from the start means you don’t have to crossover later.

If you’re already in the scuba world

SSI might feel more natural. If you’re already certified with SSI for scuba and use SSI’s MySSI app to track your dives, adding freediving in the same ecosystem is convenient. SSI centres are also slightly more common globally, which can matter if you travel a lot and want to drop into training sessions at unfamiliar centres.

If you just want to freedive recreationally

Either works equally well. The practical experience, what you learn, how you’re trained, what you’re able to do with the card: all of it is the same. This is genuinely the most common scenario and the one where the choice matters least.

Crossover between agencies

If you get certified with one agency and later want to switch, crossover courses exist. Most centres will evaluate your existing skills and issue the equivalent certification of the other agency without requiring you to repeat the full course. It’s a minor inconvenience, not a major obstacle.

A Note on Course Quality

The agency name on your card matters far less than the quality of instruction you receive. A well-taught AIDA course from a mediocre instructor is worth less than a well-taught SSI course from an excellent one, and vice versa.

What actually determines your progress as a freediver: the patience and skill of your instructor, the conditions you learn in, the ratio of students to instructors, and how much time you get in the water. The certification system is a framework. The teaching is what makes the difference.

At The Gate Freediving, we run a maximum of 2 students per instructor regardless of which agency you choose. If you’d like to know more about how we teach, visit our About Us page.

Which Levels Exist in Each System?

AIDA levels

AIDA 1: Introduction (1 day)
AIDA 2: Beginner (certifies to 20m with a buddy)
AIDA 3: Advanced (certifies to 30m with a buddy)
AIDA 4: Expert (certifies to 40m with a buddy)
AIDA Instructor: required to teach AIDA courses

SSI levels

SSI Basic Freediver: Introduction (pool only)
SSI Level 1: Beginner (equivalent to AIDA 2, certifies to 20m)
SSI Level 2: Advanced (equivalent to AIDA 3, certifies to 30m)
SSI Level 3: Expert (equivalent to AIDA 4, certifies to 40m)
SSI Freediving Instructor: required to teach SSI courses

At The Gate Freediving, we currently offer the beginner (AIDA 2 / SSI Level 1) and advanced (AIDA 3 / SSI Level 2) courses. See our full courses overview for details on both.

Our Recommendation

At The Gate Freediving, our instructors are certified in both, so there is no difference in instruction quality either way.

If you’re curious about competition, get AIDA. If you’re already embedded in the SSI ecosystem from scuba, SSI is the tidier choice. For everyone else: pick one, learn well, and don’t overthink it.

What’s Next After AIDA 3 or SSI Level 2?

Once you hold an AIDA 3 or SSI Level 2, you’re certified to 30 metres and cleared to dive with a buddy independently. For many divers, the course is just the beginning. The next step is putting the technique to work, and that’s where guided training sessions come in.

At The Gate Freediving, we run training sessions at both Dahab dive sites: the Lighthouse reef and the Blue Hole. Sessions are guided, with a maximum of 2 divers per instructor, and can be focused on whatever you’re working on: depth progression, free-fall technique, Frenzel equalisation, or simply building comfort at depth.

A few directions from here:

Regular training sessions at the Lighthouse or Blue Hole, with a structured plan if you’re staying for a week or more
AIDA 4 / SSI Level 3: the expert course, certifying to 40 metres
Instructor training, for divers who want to start teaching

If you’re planning to stay in Dahab for a week or more, we can build a training plan around your level and goals. View our training sessions or get in touch and tell us what you’re working on.

Frequently Asked Questions

Is AIDA 2 or SSI Level 1 better recognised internationally?

Both are widely recognised worldwide. AIDA has a stronger reputation specifically within the freediving community and competition world. SSI has a broader global network of affiliated centres. Neither will meaningfully limit your access to training or diving anywhere in the world.

Can I switch from AIDA to SSI (or vice versa) after I’m certified?

Yes. Crossover evaluations exist for exactly this purpose. Most centres will assess your skills and issue an equivalent certification from the other agency without requiring you to repeat the full course.

Do I need to choose before I arrive in Dahab?

No. You can tell us when you book, or when you arrive. Our instructors will ask during your first briefing and will give you a clear recommendation based on your goals if you’re still undecided.

Does The Gate Freediving offer both AIDA and SSI courses?

Yes. Both the beginner course (AIDA 2 / SSI Level 1) and the advanced course (AIDA 3 / SSI Level 2) are available in either agency. The curriculum, the instruction, and the conditions are identical: only the certification paperwork differs.

If I want to compete one day, do I need AIDA from the start?

Not strictly: crossover is possible. But if competition is on your mind at all, starting with AIDA is the cleaner path. You’ll be training in the same framework that competitions run in, and you won’t need an extra evaluation step later.

Ready to Book?

Whether you choose AIDA or SSI, the course structure, the water, and the instruction are the same at The Gate Freediving. The most important decision isn’t which agency.

View the beginner freediving course →

View the advanced freediving course →

Questions? Get in touch and we’ll reply once we come up from our dives.

People ask us this one a lot. Honestly? Just pick one. We’ve never seen it make a difference to someone’s week in the water. See you in Dahab.

Emilio & Liam