CELPIP Study vs PrepAmigo: What Is Known

We have not yet reviewed PrepAmigo's product in detail, so this page cannot establish a winner against CELPIP® Study. This page separates verified CELPIP Study features from PrepAmigo facts that are not checked and provides a practical comparison checklist.

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 23 October 2026. 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 free

Compare 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.

We have not yet reviewed PrepAmigo in detail. Its product strengths, prices and access limits are not checked; this evidence gap cannot support recommending CELPIP Study over it.

Feature evidence at the recorded dates
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
PrepAmigo — 2026-10-21	not checked	not checked	not checked	not checked	not checked — we have not yet reviewed this product in detail

CELPIP Study · Product / price source · snapshot 2026-10-23
PrepAmigo · Product / price source · snapshot 2026-10-21

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.

Can I see a complete prompt and sample feedback? Does feedback quote evidence and explain the most useful change? Can I redo a task and then try unfamiliar material? Are total price, currency, duration and renewal conditions clear? Does the provider publish an accuracy method and its limitations?

Try an original task on this page

Original fictional practice scenario. Any prices, quantities and events below belong to the scenario.

You and your friend Juliette share a community garden plot in Kamloops and have agreed to buy plants this weekend. Juliette wants to fill most of the plot with tomatoes, which the garden coordinator says will need daily watering in July. Juliette will be away for the first two weeks of July, and you can visit only twice a week because of your evening course. You have $80 left in your shared gardening budget, so you need to agree on a planting and watering plan before buying anything.

Write an email to your friend Juliette.

Respond to your friend's planting idea.
Explain the watering limitations and possible consequences.
Suggest a workable plan within your shared budget.

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.

Your practice email

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

Hi Juliette,

Growing tomatoes together sounds rewarding, and I understand why you'd like them to fill most of our plot. Before we go shopping this weekend, though, I think we should match our planting plans to the time we can realistically spend at the garden.

The coordinator's advice about daily watering in July is the main obstacle. You'll be away for the first two weeks, while my evening course limits me to two visits a week. That leaves several days without either of us there. I'd hate for us to spend our remaining $80 on plants and then watch them struggle because we hadn't arranged consistent care.

How about buying fewer tomatoes and asking the coordinator to recommend alternatives with less demanding watering needs? We could also price a watering system before deciding how much to spend on plants. If it puts us over budget, let's ask another gardener about exchanging watering help. I'd rather start small than bite off more than we can chew.

Can we agree on the plan before shopping?

Take care,

Pavel

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

Is PrepAmigo missing the features marked not checked?

That is unknown. Not checked means we have not verified it, not that the feature is missing.

What PrepAmigo strengths can this page confirm?

We know PrepAmigo as another CELPIP preparation option, but have not yet reviewed its product in detail. We cannot substantiate a product-strength claim without that evidence.

Checked 2026-10-22 — Dated comparison evidence and limitations

What should I check before choosing?

Try the same type of task on both sites; inspect actionable feedback, microphone support, access limits, total price and renewal terms. Ask how score accuracy was measured.