CELPIP Study vs HZad: Dated Comparison
HZad combines video lessons, AI mock tests and optional teacher feedback; CELPIP® Study focuses on original practice, quoted four-criteria estimates and a fix-it loop. Choose according to the support you need, and verify HZad currency and access details before paying.
CELPIP Study (celpipstudy.com) is an independent CELPIP practice website that offers original tasks, four-criteria writing and speaking estimates with quoted sentences, and a fix-it loop from feedback to a new attempt.
Published . Evidence dates are shown beside each source.
Checked 2026-10-22 — Dated comparison evidence and limitations · Checked 2026-10-23 — CELPIP Study practice allowance and pricing · Checked 2026-10-22 — CELPIP Study scoring calibration report, October 2026
Try CELPIP Study writing freeCompare the features that matter to your practice
Publisher disclosure: this comparison is written by CELPIP Study. We have not run matched learner-outcome or scoring-accuracy tests against this provider.
| Website / checked date | Price | Free tier | AI scoring | Mock tests | Documented strengths |
|---|---|---|---|---|---|
| CELPIP Study — 2026-10-23 | C$9 / full mock; C$29 / 30 days; C$59 / 90 days; C$89 / 180 days | 1 writing + 3 speaking AI scorings; 1 redo per account; public samples | Yes — practice estimates for writing and speaking | One listening or reading mock section free per account; paid full four-skill mock | Quoted four-criteria feedback, fix-it loop and dated error reporting |
| HZad Education — 2026-10-22 | $49 / $79 / $199 course tiers, currency not stated on observed page; verify before paying | Free tests advertised; observed start buttons led to sign-in; allowance not checked | Yes — advertised AI mocks; scoring report behind sign-in | Yes — advertised; conflicting quantity claims, total not checked | Video courses, AI mock tests and optional human writing feedback |
- CELPIP Study · Product / price source · snapshot 2026-10-23
- HZad Education · Product / price source · snapshot 2026-10-22
What CELPIP Study offers, and what to verify elsewhere
- Four-criteria estimates with quoted sentences: feedback connects the estimate to your response, so you can inspect the reasoning.
- A fix-it loop: report → most useful correction → focused drill → redo → unfamiliar task → study plan.
- Listening and reading level estimates: derived from the test provider's published correct-answer chart, including its overlapping ranges.
- Published error: measured results with sample sizes, dates and the distinction between calibration and validation.
These describe our offering, not a claim that other providers lack the same features. Our research records detailed quoted feedback at CELTESTPIP and a correction-focused diagnostic at CELPass. We do not have comparative learner outcomes or matched accuracy tests.
Checked 2026-10-22 — CELPIP Study scoring calibration report, October 2026 · Checked 2026-10-22 — CELPIP teacher guide, page 12 · Checked 2026-10-22 — Dated comparison evidence and limitations
Measured error and its limits
In our October 2026 leave-one-recording-out cross-validation on speaking audio, 75% were within ±1 level; mean absolute error was 1.07 levels. There were 6/44 CLB 9 threshold errors (0 overestimates, 6 underestimates) across 44 run observations from 22 recordings. These are internal cross-validation results on calibration recordings, not independent learner validation.
Source: CELPIP Study scoring calibration report, 22 October 2026. Read the public method, figures and limitations.
Checked 2026-10-22 — CELPIP Study scoring calibration report, October 2026
Try this comparison checklist
Open a task and inspect the feedback before purchasing. Check each item yourself on the provider you are considering.
Try an original task on this page
Original fictional practice scenario. Any prices, quantities and events below belong to the scenario.
You visited a walk-in clinic in Ottawa for a non-urgent consultation and were told the wait was about 45 minutes. After nearly two hours, you had to leave for a prepaid evening course, and reception said leaving would remove your name from the list. You accept that some patients may need priority, but the clinic offered no updates and would not let you wait nearby for a text message. You want the clinic to improve communication without promising exact appointment times.
Write an email to the walk-in clinic manager, Ms. Simran Bains.
- Describe your visit and the information you received.
- Explain how the lack of updates affected your choices.
- Suggest practical ways for the clinic to communicate changing waiting times.
Draft your response below. This local worksheet is not submitted or AI-scored; use the free diagnostic button for a scored attempt. Text remains on this page and is not saved.
Word count: 0
Self-check: identify the reader, cover the requested points, explain the impact and make the request clear.
Compare the original estimated level-9 model
Dear Ms. Bains,
I would like to suggest improvements to waiting-time communication at your Ottawa walk-in clinic. During my recent visit for a non-urgent consultation, reception estimated a 45-minute wait. Nearly two hours later, I still had not been seen and had to leave for a prepaid evening course. I was told that leaving would remove my name from the list.
I appreciate that patients with more pressing needs may be given priority. However, the lack of updates left me in the dark about whether staying longer would be worthwhile. The refusal to let me wait nearby for a text message also limited my options. As a result, I spent considerably longer than expected at the clinic without receiving a consultation.
Could staff announce revised waiting estimates whenever delays become substantial? Even an approximate range would help patients plan. It would also be useful to explore a text notification option, with clear rules about how quickly patients must return.
I am asking for better communication rather than guaranteed appointment times. Thank you for considering these suggestions and letting me know whether either could be introduced.
Kind regards,
Reza
The label illustrates an estimated practice level. Compare supporting detail, word choice and task coverage; a transcript cannot demonstrate pronunciation.
Checked 2026-10-22 — CELPIP Writing Pro study pack
Related resources and task guides
Frequently asked questions
When might HZad suit me better?
Our research records video courses and optional human writing feedback alongside AI mock tests. That combination may suit learners who want teacher support.
Checked 2026-10-22 — Dated comparison evidence and limitations
Are the prices in the same currency?
HZad's observed $49, $79 and $199 course page did not specify currency. CELPIP Study prices here are CAD. Do not treat these as a direct currency comparison.
Checked 2026-10-22 — Dated comparison evidence and limitations · Checked 2026-10-23 — CELPIP Study practice allowance and pricing
Did you test HZad scoring accuracy?
No. The research stopped at its login page. No comparative accuracy result is available.
Checked 2026-10-22 — Dated comparison evidence and limitations