kitio.aiDiffit vs Revision History
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Diffit starts at $14.99/mo and Revision History starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Leveled reading passages
- Vocabulary lists
- Question generation
- Google and Microsoft export
- Standards alignment
- Document creation replay
- Writing pattern analysis
- Copy and paste detection
- Editing time and session stats
- Google Slides support
| Feature | Diffit | Revision History |
|---|---|---|
| Best for | Turn any article, video or topic into reading at multiple levels | Chrome extension that shows teachers how student work was written |
| Category | Education | Education |
| Pricing model | Freemium | Freemium |
| Starting price | $14.99/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | Diffit | Revision History |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Diffit starts at $14.99/mo and Revision History starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Diffit
- Fast differentiation from any source
- Supports many languages
- Free plan is useful
- Exports require the paid plan
- Questions sometimes need editing
Revision History
- Evidence based on the writing process
- Works with existing Google Docs
- Free to start
- Also covers Google Slides
- Only works with Google Docs and Slides
- Chrome-only extension
- Paid plan details not in the evidence
Which one should you choose?
Choose Diffit if you want:
- Fast differentiation from any source
- Supports many languages
- Free plan is useful
Watch out: exports require the paid plan.
Choose Revision History if you want:
- Evidence based on the writing process
- Works with existing Google Docs
- Free to start
Watch out: only works with google docs and slides.
Diffit vs Revision History FAQ
What is the difference between Diffit and Revision History?
Diffit: Turn any article, video or topic into reading at multiple levels. Revision History: Chrome extension that shows teachers how student work was written. Both are education tools.
Is Diffit or Revision History cheaper?
Diffit starts at $14.99/mo and Revision History starts at See pricing page. Check both pricing pages for current plans.
Do Diffit and Revision History have free plans?
Diffit: Yes. Revision History: Yes.
Who makes Diffit?
Diffit is made by Diffit, based in United States.
Who makes Revision History?
Revision History is made by Revision History.
Which should I choose, Diffit or Revision History?
Choose Diffit if you value fast differentiation from any source and supports many languages. Choose Revision History if you value evidence based on the writing process and works with existing google docs.