You've seen the ads. Khan Academy is free and comprehensive. IXL promises adaptive learning. Boom Cards says it's built for special needs. Your child's IEP calls for technology supports, but no one tells you which platform serves dyslexia, ADHD, or autism best.

The marketing is louder than the evidence. What you need is a framework: which platform matches your child's specific disability, what it costs, and how to evaluate if it's working within the first two weeks.

Khan Academy: Free Self-Paced Learning

Cost: Free, no premium tier

Best for: Students who need conceptual depth, visual instruction, and the ability to replay lessons without time pressure

Disability match: Moderate to strong for dyscalculia (visual math models), dyslexia (text-to-speech via browser extensions), and some autism profiles (predictable lesson structure, no social demands)

Weaknesses: Self-direction required. No built-in progress alerts for parents. Task initiation is on the student.

Khan Academy delivers comprehensive video instruction across math, science, history, and language arts. Sal Khan's explanations are patient, visual, and procedural. A student struggling with fractions gets multiple approaches: area models, number lines, real-world examples. You can watch a lesson five times without anyone tracking how many attempts it took.

For dyslexia, Khan Academy pairs well with browser-based text-to-speech extensions (Read&Write, NaturalReader). The transcripts are accurate, and the pacing is controlled by the student. For dyscalculia, the visual models are the strength. The platform assumes nothing and builds from foundational concepts.

For ADHD, Khan Academy's self-paced structure is both the benefit and the barrier. There's no timer pushing a student forward, which reduces anxiety. But there's also no scaffolding for task initiation or progress monitoring. If your child struggles with executive function, Khan Academy requires external supports: a visual schedule, timed work blocks, and regular check-ins. The platform won't remind them what to do next.

What to test in week one: Can your child navigate to the correct lesson without prompting? Do they complete one full unit, or do they watch 30 seconds and click away? If they can't self-direct, Khan Academy needs a co-pilot.

IXL: Adaptive Practice with Progress Tracking

Cost: $9.95/month per subject, or $19.95/month for all subjects (family plan available)

Best for: Students who benefit from structured practice, immediate feedback, and granular skill progression

Disability match: Strong for dyslexia (text-to-speech built-in), ADHD (short tasks, visible progress bars), dyscalculia (small skill increments, mastery-based progression)

Weaknesses: Subscription required. Can feel repetitive for students who need variety. No customization for augmentative communication users.

IXL is a skill-drill platform. Each lesson focuses on one narrow competency: identifying the main idea, solving two-step word problems, using commas in compound sentences. The student practices until they hit 80% or 100% mastery, tracked with a visible progress ribbon. When they get a problem wrong, IXL adjusts and serves easier examples before returning to grade-level difficulty.

For dyslexia, IXL's built-in text-to-speech reads questions and answer choices aloud. It's not perfect (pronunciation of proper nouns can be off), but it removes decoding as a barrier to demonstrating comprehension. For ADHD, the short task loops work well. A student sees immediate feedback, earns SmartScore points, and gets visual confirmation of progress within minutes. That feedback loop addresses the executive function challenges common in ADHD: initiation, monitoring, and completion.

For autism, IXL's predictability is the draw. Every lesson follows the same format. There are no unexpected social scenarios, no timed competitions, no peer comparison. The student works at their pace, and the system adjusts silently in the background.

What to test in week one: Check the IXL parent dashboard after three sessions. Is your child progressing through skills, or are they stuck on the same lesson? If they're stuck, the difficulty level may be misaligned. Start two grade levels below and let them build confidence before advancing.

Boom Cards: Customizable Digital Task Cards

Cost: Varies. Individual card decks range from free to $10. Boom Learning membership is $15/year for teachers, $25/year for clinicians. Parents can access free decks without a subscription.

Best for: Students working with therapists or special educators who need highly specific, customizable activities (articulation practice, sight word drills, social narratives, AAC symbol matching)

Disability match: Strongest for autism, complex communication needs, and students with co-occurring speech/language delays. Works well for early intervention and therapeutic contexts.

Weaknesses: Not a curriculum. You're curating individual activities, not following a scope and sequence. Requires more adult direction than Khan Academy or IXL.

Boom Cards are digital flashcards with audio, drag-and-drop, and multiple-choice interactions. A speech therapist creates a deck targeting /r/ blends. An occupational therapist builds a visual schedule using symbols from the student's AAC device. A special education teacher customizes a phonics deck with the exact high-frequency words from the student's IEP goals.

The platform is a library, not a curriculum. You search for "autism social stories", find 200 options, preview them, and purchase (or download free) the ones that match your child's needs. If your child uses core vocabulary boards, you can find Boom decks using those exact symbols. If they're working on requesting with two-word phrases, there are decks for that.

For parents, Boom Cards requires more curation. You're not enrolling your child in "4th grade math." You're selecting specific skill-building activities and cycling through them as your child progresses. This works well when paired with therapy or an IEP that names discrete goals. It's less useful if you need a comprehensive general education curriculum.

What to test in week one: Can you find three decks aligned to your child's current IEP goals? Assign them and check completion data. Boom Cards tracks accuracy and time-on-task. If your child engages for 10 minutes and completes the deck independently, it's a fit. If they need hand-over-hand prompting for every card, the activity level is too advanced.

What About Accessibility Features?

Every platform claims accessibility. Here's what that means.

Screen reader support: Khan Academy and IXL both work with JAWS, NVDA, and VoiceOver. Boom Cards has partial screen reader support (newer decks are better than older ones, check the deck's accessibility notes before purchasing).

Keyboard navigation: Khan Academy and IXL are fully keyboard-navigable. Boom Cards requires mouse or touch interaction for drag-and-drop activities.

Closed captions: Khan Academy videos have human-reviewed captions. IXL doesn't use video, so captions aren't applicable. Boom Cards that include video vary (creator-dependent).

Color contrast and visual clarity: All three platforms meet WCAG 2.1 AA standards for color contrast. Khan Academy and IXL allow font size adjustments via browser zoom. Boom Cards render at the size the creator designed them, which can be an issue for low vision users.

If your child uses a switch device or eye-gaze system, test the platform's interaction model before committing. Drag-and-drop (common in Boom Cards) doesn't work with all assistive tech. Multiple-choice with keyboard selection (IXL, Khan Academy) does.

Platform Comparison: Cost, Curriculum, Customization

Which Platform for Which Disability?

Dyslexia: IXL (built-in text-to-speech, mastery-based progression). Khan Academy works if paired with browser TTS extension.

ADHD: IXL (short tasks, immediate feedback, visible progress). Khan Academy requires external executive function supports (timers, visual schedules, check-ins).

Autism: Boom Cards for highly specific goals (social stories, communication targets). Khan Academy for students who prefer predictable video instruction with no social component. IXL if routine and repetition reduce anxiety.

Dyscalculia: Khan Academy (visual math models, conceptual depth). IXL (granular skill progression, immediate feedback on errors).

Multiple disabilities or complex needs: Boom Cards (therapeutic integration, AAC compatibility, fine-grained goal tracking).

How to Know If It's Working

Don't commit to a platform based on features. Commit based on what happens in the first two weeks.

Week one test: Assign three lessons or activities. Observe without intervening. Can your child navigate the platform independently? Do they complete one full task, or do they click around and disengage?

Week two test: Check progress data. Has your child mastered any new skills? Are they attempting harder content, or cycling through the same entry-level tasks?

The decision point: If your child is engaging independently and progressing through content, the platform fits. If you're prompting every step or they're frustrated by the interface, it doesn't matter how good the curriculum is. Switch.

What About IEP Integration?

Online learning platforms supplement IEPs rather than replace them.

If your child's IEP includes goals like "will answer inferential comprehension questions with 80% accuracy" or "will solve two-step word problems independently," you can map those directly to IXL skills or Khan Academy practice sets. Document which lessons align to which goals, share that mapping with the IEP team, and use platform analytics as progress monitoring data.

Boom Cards work well when an SLP or special educator creates decks targeting specific IEP objectives. The platform tracks trials-to-mastery, which feeds directly into data collection for goals.

No platform will write your child's IEP or deliver specially designed instruction. They provide practice opportunities and progress data. The instruction still comes from a qualified teacher or therapist.

Free Trials and Money-Back Options

Khan Academy: Free forever. No trial needed.

IXL: 30-day money-back guarantee (contact support if it's not working).

Boom Cards: Many decks are free. Test those before purchasing premium decks.

Start with the lowest financial commitment. If Khan Academy is free and meets 70% of your needs, try it first. If your child needs more structure, the $10/month IXL single-subject plan is a low-risk test.

When to Switch Platforms

You'll know within a month if a platform isn't working. Your child avoids it, progress stalls, or you're spending more time troubleshooting the interface than learning.

Switch if:

• Your child can't navigate the platform independently after two weeks of daily use
• Progress data shows they're repeating the same content without advancement
• The activity format doesn't match their learning profile (e.g., self-paced video for a child with severe ADHD who needs external task structure)

Don't switch if the only issue is "they don't love it." Learning platforms aren't entertainment. If your child is progressing and the cognitive load is appropriate, stick with it even if it's not their favorite activity.

Platform Combinations That Work

You don't have to choose one platform exclusively.

Khan Academy (free conceptual instruction) + IXL (paid skill practice): Use Khan Academy for initial teaching, IXL for mastery drills.

Boom Cards (therapeutic goals) + IXL (academic curriculum): Boom Cards for speech/OT targets, IXL for math and reading.

The cost stays manageable: IXL at $10 to $20/month, Boom Cards at $0 to $10/deck as needed, Khan Academy free.

Final Framework

Match platform to your child's profile:

• Self-directed learner who needs depth: Khan Academy
• Needs structure, feedback, progress visibility: IXL
• Working on discrete therapeutic or communication goals: Boom Cards

Test for two weeks. Check engagement and progress data. Decide based on what's happening, not what the platform claims it does.