Diffit Review

Our Diffit review

Our verdict

Diffit does one thing and does it better than the all-in-one tools: it turns a single text into versions for different readers. If your class includes a wide range of reading levels or English learners, it can save the hour you would spend rewriting a passage by hand. It doesn’t plan lessons or write rubrics, so most teachers will pair it with a broader tool.

Our 4.4 out of 5 score is an editorial judgment based on features, pricing and reviewer feedback. It loses points for its narrow focus and for the premium features that sit behind a school license.

What it does

You enter a topic, a link or pasted text, then choose a reading level, length and language. Diffit generates the adapted passage with vocabulary lists, comprehension questions and student-ready activities such as graphic organizers. It is teacher-facing only, so students never log in.

What teachers say

Independent reviewers consistently call text leveling its flagship feature, and it is especially valued by teachers of English learners and by reading specialists. In Diffit’s own survey of more than 2,500 teachers, 96% said it saves them time. As a company-run survey, treat that figure as supportive rather than independent.

Accuracy has been tested outside the company. A reader of an adult-education community forum checked passages at several grade levels against readability formulas and found Diffit’s levels close to what it claimed, though not perfect. Diffit itself says its leveling is approximate and is usually close. Reviewers also advise checking vocabulary and questions, since simplified text can lose nuance, and some find the comprehension questions formulaic.

On privacy, the platform is teacher-only and collects no student data, which is helpful when your school is cautious about AI.

Pricing

The free version stays available and covers the essential differentiation tools. New accounts get 60 days of Premium access, then drop back to free unless a school buys a license. Premium features include export to Google Docs, Slides, Forms and Microsoft tools, longer text inputs and standards alignment. Diffit for Schools is a flat annual rate that depends on school size. Diffit’s own plans page focuses on school licenses, while some review sites list an individual Premium plan at about $14.99 a month, so check which options are offered when you sign up.

Where it falls short

Because it does one job, you’ll need other tools for lesson plans, rubrics and parent communication. Reading levels are estimates, so spend a couple of minutes checking each version before class. It is also less useful if your students all read at about the same level.

Who should use it

Choose Diffit if you teach mixed-ability classes, English learners or students with different literacy needs. Skip it if you want one platform for everything (MagicSchool AI). For free planning help, see Khanmigo.

How we reviewed this tool

This review is based on Diffit’s official plans and school pages, independent reviews, a community accuracy test and teacher comments (checked October 19, 2026). We have not run our own classroom trials.