IXL vs DeltaMath vs Khan Academy: Ranked (2026)

Three platforms dominate the math practice conversation in every teacher lounge and every r/Teachers thread: IXL, DeltaMath, and Khan Academy. For math teachers choosing between them, the answer depends on budget and grade band — but most comparison guides miss both of those variables entirely.

The verdict: DeltaMath is the strongest pick for most 6–12 math teachers with a self-managed budget. IXL earns its price tag only when the district is paying and the teacher actually uses the diagnostic reports. Khan Academy is the best zero-cost option for K–8 and an excellent video library for any grade — but its teacher-facing tools stop short of what secondary classrooms need for daily practice management.

The full breakdown — pricing, feature depth, grade band fit, and what the math teaching community actually reports — follows below.

Quick Comparison: IXL vs DeltaMath vs Khan Academy at a Glance

Pricing verified against official product pages, June 2026.

IXL for Math Teachers: Strong Reporting, Steep Price, Admin-Dependent Value

IXL’s diagnostic engine is genuinely differentiated. The SmartScore system tracks mastery on a 0–100 scale per skill, the standards-aligned reporting dashboard shows class-level gaps by domain, and the Diagnostic tool can place a student across multiple grade levels in under 20 minutes. For a teacher who wants one platform to run both practice and progress documentation, the feature set is coherent.

The price, however, is teacher-hostile without district backing. A classroom license for 25 students runs about $299/year — roughly $12 per student — and that’s before any per-teacher fees. District pricing drops to $5–10 per student, but only when the school negotiates the contract. Teachers who try to absorb the cost personally are paying more per student than the platform is worth on a per-feature basis compared to DeltaMath Plus.

The SmartScore mechanic is also a documented problem in student-facing practice. The scoring is asymmetric: near the 80+ threshold, a correct answer earns one to two points while a wrong answer costs five to eight. One App Store review put it directly: “This app punishes you if you get a question incorrect!!! you can spend up to 3 hours on a singular ixl.” That experience is common enough to appear across hundreds of reviews. Teachers who use IXL for timed or high-stakes practice sessions regularly report student frustration with the system — not with the math.

The platform’s other weak point is its position in admin conversations. One r/Teachers thread surfaced what many teachers recognize: “Central Office folk like the superintendent and curriculum director actually WANT the ELA and math departments using online programs ONLY for our teaching so they can quickly view digital data.” IXL’s dashboard is built precisely for that use case — which means it can be purchased over a teacher’s preference, not because of it.

IXL is a strong tool used strategically: as a diagnostic layer at the beginning and middle of a unit, not as the daily practice workhorse. Pairing it with DeltaMath for assignment-level practice is the configuration that gets the most out of both platforms.

Teachers building budget cases for IXL should note: the school license math only works if administration is already interested. Self-sourcing it means overpaying. See the best AI grading tools for teachers for complementary reporting options that don’t carry IXL’s price.

DeltaMath for Math Teachers: The Practitioner’s Choice for Grades 6–12

DeltaMath was built by a teacher, and it shows. The free tier includes over 2,500 problem types, instant feedback with worked examples, and a class completion dashboard that shows — at a glance — who did what and how many attempts it took. No per-student pricing, no content gatekeeping, no time-limited trials.

The assignment builder is the best in class for secondary math. Teachers can mix problem types, set retry limits, require students to watch an example before attempting problems, and export completion data. The workflow is direct enough that teachers who switched from IXL to DeltaMath consistently report spending less time on setup.

The community signal on DeltaMath is unusually strong. In a r/Teachers thread comparing options for struggling math learners, one teacher described the platform’s fit for a particular student profile: “The only thing these students will tolerate is an algorithm or a procedure where every problem they do is the same. For them, it’s Delta Math or bust.” That’s not a testimonial about pedagogy — it’s an observation about task structure and student buy-in.

The Plus tier (about $95/year, teacher-paid) adds step-by-step video explanations for each problem type. That is the one feature that meaningfully limits free-tier use for independent practice: students who get stuck receive worked examples, but not narrated walkthroughs unless the teacher upgrades. For homework practice, where students work without synchronous support, the video gap matters.

The Integral tier (about $145/year) adds a custom test builder. Worth it for teachers who build assessments natively in the platform. Not worth the premium for teachers who use a separate assessment tool.

DeltaMath’s grade band is firmly secondary. The problem library starts strong at Grade 6 and deepens through AP Calculus and statistics. Below Grade 6, the problem selection thins considerably. Elementary teachers looking for IXL-level coverage of K–5 skills won’t find it here.

Khan Academy for Math Teachers: The Free Baseline That’s Enough — Until It Isn’t

Khan Academy’s core offering remains the most complete free math resource available. The video library spans K–12 with narrated, step-by-step instruction across every major topic. The practice problem engine covers K–8 comprehensively. The teacher assignment tool allows class creation, assignment by skill or course, and basic completion reporting.

For elementary and middle school teachers, it is a credible free alternative to paid platforms — especially for video instruction. Teachers on r/Teachers note it clearly: “I personally like Khan Academy videos better. Easy searches for title by skill. I would have a kid watch both before coming for help.” The searchability and video quality are consistent advantages that even IXL and DeltaMath do not match on the instructional side.

The limitation is teacher-facing reporting depth. Khan Academy’s dashboard shows completion and time-on-task, but it does not offer the standards-mastery granularity of IXL or the attempt-by-attempt assignment data of DeltaMath. For secondary teachers who need to document skill proficiency for grading or intervention planning, that gap is a real constraint.

Khanmigo — Khan Academy’s AI tutoring layer — is free for teachers but requires a school or district implementation for classroom student access as of 2026. Individual teachers cannot simply assign it to a class of 30 students. The MagicSchool AI vs Khanmigo comparison covers the full implementation picture; the short version is that Khanmigo is promising but not teacher-deployable without admin involvement. That mirrors the same admin-dependency problem that afflicts IXL at the price level.

For high school math specifically, Khan Academy’s problem engine runs thin above Algebra 2. The video library holds up through precalculus and AP, but the practice problem variety at upper secondary levels does not match DeltaMath’s depth.

Students who use these platforms often supplement with AI math solvers — a parallel workflow teachers should account for when interpreting completion data.

The Verdict: Which Platform Wins for Your Situation

The three-way comparison resolves cleanly when sorted by budget, grade band, and control needs.

DeltaMath wins for most secondary math teachers. The free tier covers the majority of use cases — daily homework practice, problem-set assignments, completion tracking — without any per-student cost. At about $95/year for Plus, the step-by-step video tier is the cheapest functional upgrade in the field. Teachers who pay out of pocket for math practice tools and teach Grades 6–12 have the clearest case for DeltaMath.

IXL wins when the district is paying and the teacher uses the diagnostic reports. The SmartScore system and standards-mastery dashboard are meaningfully better than either competitor for identifying class-level skill gaps. At $5–10/student on a district contract, the value proposition is real. At $12/student on a personal classroom license, it is not competitive with DeltaMath Plus on feature-per-dollar. The tool’s value is conditional on two things: district funding and a teacher who will actually log into the reporting dashboard regularly.

Khan Academy wins when the budget is zero and elementary or middle school coverage matters. The K–8 problem engine and full video library make it the strongest free option, especially for teachers who use video instruction as part of their practice workflow. Secondary teachers will find it useful as a video supplement but insufficient as a standalone practice platform.

The admin dynamic deserves a direct statement. Both IXL and Khan Academy’s advanced features (Khanmigo) require district or admin involvement to unlock their highest-value use cases. DeltaMath is the platform most fully controlled by the classroom teacher. For teachers who have learned not to wait for district procurement cycles, that control difference is not a minor point.

None of these platforms replaces a well-designed lesson. Completion data from any of them is only as useful as the instructional response it generates. Teachers tracking how ClassDojo, Remind, and Seesaw compare for classroom communication alongside practice platform data are building a more complete picture of student engagement than any single platform provides.

Frequently Asked Questions

Is DeltaMath really free, or is the free version too limited to actually use in class?

Free is genuinely functional. The free tier includes over 2,500 problem types, instant feedback with worked examples, and a class completion dashboard. The Plus tier (about $95/year) adds step-by-step video explanations per problem — the one meaningful gap in the free experience for independent practice. Most secondary math teachers run their full homework and classwork practice workflow on the free tier without the upgrade.

Should teachers use IXL if the district already pays for it?

Yes — specifically for diagnostic reporting and standards-mastery tracking. The SmartScore system and class-level progress dashboard are the platform’s strongest features, and they’re wasted if teachers only use it for practice assignments. The most effective IXL configuration pairs it with DeltaMath for daily assignment practice and uses IXL diagnostically at unit start, midpoint, and end.

Is Khan Academy enough for a high school math classroom?

For video instruction, yes — the library is strong through AP courses and easy to search by skill. For assignment-level control with detailed completion tracking and problem variety at upper secondary levels, no. High school teachers who need to document skill proficiency or build varied practice sets will need to supplement with DeltaMath.

What is IXL’s SmartScore and why do students find it so frustrating?

SmartScore measures mastery on a 0–100 scale with asymmetric point values. Near the 80+ mastery threshold, a correct answer earns one to two points while a wrong answer costs five to eight. The system requires demonstrated sustained mastery rather than a single lucky streak, but the practical effect is that students can lose significant progress from one error after extended correct work. App Store reviews document sessions lasting two or more hours on a single skill without reaching mastery.

Which platform fits middle school math vs. high school math better?

Middle school (Grades 6–8): all three work. IXL has the broadest K–12 coverage; DeltaMath’s library starts strong at Grade 6; Khan Academy covers the range well with video. High school (Grades 9–12): DeltaMath for daily practice, Khan Academy for video instruction, IXL only if district-funded. Above Algebra 2, DeltaMath’s problem variety is the deepest of the three.

Can a teacher give students Khanmigo access without a district license?

No. Classroom student access to Khanmigo requires a school or district implementation as of 2026. Individual teachers can access Khanmigo themselves at no cost, but assigning it to students requires admin-level setup. Teachers in districts without a Khan Academy partnership cannot use Khanmigo as a student-facing tool, regardless of how useful the individual teacher access is.

The Bottom Line

DeltaMath is the strongest pick for most math teachers on a self-managed budget, and it’s not a close call at Grade 6 and above. IXL earns its cost only under a district contract and only when the reporting features are actively used — bought individually, it’s an expensive practice platform competing against a free one. Khan Academy holds the field for video instruction and K–8 coverage, but its reporting layer is too thin to anchor a secondary classroom’s practice workflow.

The starting point for most secondary math teachers is a free DeltaMath account: the setup takes 20 minutes, the assignment workflow is immediate, and the completion dashboard makes the value visible within the first week. Teachers already on IXL through a district contract should treat the diagnostic dashboard as the subscription’s main return — running class-level gap analyses at unit start and midpoint extracts the feature that justifies the price. Picking the wrong platform here costs either money or teacher time, and the math on which one fits most situations is straightforward.

References

1. r/Teachers — “Is the math too hard or am I just a bad teacher?” thread — https://reddit.com/r/Teachers/comments/1nfp3i7/is_the_math_too_hard_or_am_i_just_a_bad_teacher/
2. r/Teachers — “Delta Math” thread — https://reddit.com/r/Teachers/comments/1sdhrl7/delta_math/
3. App Store — IXL Math, English & More — https://apps.apple.com/us/app/ixl-math-english-more/id693689912
4. TrustRadius — IXL Learning pricing — https://www.trustradius.com/products/ixl-learning/pricing
5. Brighterly — IXL cost breakdown — https://brighterly.com/blog/ixl-cost/
6. DeltaMath — National List Pricing (PDF) — https://www.deltamath.com/files/DeltaMath-National-List-Pricing.pdf
7. DeltaMath — Plus tier — https://www.deltamath.com/teacher/plus
8. Khan Academy — Khanmigo pricing — https://www.khanmigo.ai/pricing
9. Khan Academy blog — Student progress tracking — https://blog.khanacademy.org/student-progress-tracking-khanmigo-kt/
10. Khan Academy support — Khanmigo classroom implementation — https://support.khanacademy.org/hc/en-us/articles/14799047733645