Comparison, published by ZeroTwo
A JustDone alternative, sorted by the job you came for
JustDone sells a bundle of 35+ writing and study tools in one subscription. ZeroTwo is a chat workspace where you choose the model. That lets it take over the drafting, rewriting and summarising jobs, and it cannot take over the checker jobs. Here is the split, with both sides' billing terms.
- ZeroTwo can replace it
- Drafting from a brief, rewriting, summaries
- ZeroTwo covers part of it
- Grammar checks, research and citations
- ZeroTwo does not replace it
- AI detection, humanizing, plagiarism checks
JustDone facts were read on its own pages on 5 October 2026. ZeroTwo publishes this page and competes with JustDone.
Job by job: what moves and what stays
Each card names the JustDone tool, what ZeroTwo offers for the same job, and whether it is a real replacement.
Drafting from a brief
ZeroTwo can replace it- JustDone lists
- An AI Chatbot that can chat with PDF, DOC or TXT files and with a website. Its homepage describes the chat as powered by GPT4.
- On ZeroTwo
- Chat with models from several providers, attach files (one per message on Free, several on Plus and above) and move long drafts into Canvas.
This is where ZeroTwo fits best: you choose the model and keep a draft open for revision.
See the ZeroTwo drafting loopRewriting and paraphrasing
ZeroTwo can replace it- JustDone lists
- A Paraphraser tool.
- On ZeroTwo
- Ask for one specific change at a time: shorter, plainer, your tone. There is no one-click button.
Summaries and notes
ZeroTwo can replace it- JustDone lists
- A Summarizer and a Note Organizer.
- On ZeroTwo
- Upload a document and ask for a summary, then check it against the source.
Grammar
ZeroTwo covers part of it- JustDone lists
- A Grammar Checker.
- On ZeroTwo
- Ask a model to proofread. There is no dedicated checker screen with inline marks.
Research and citations
ZeroTwo covers part of it- JustDone lists
- An AI Researcher and a Citations Tool.
- On ZeroTwo
- Web search (Serper on Free, Exa on paid plans) and deep research (limited on Free, 150 a month on Plus, included on Pro and above). Open every source: a model can misstate or invent a reference.
AI detection and humanizing
ZeroTwo does not replace it- JustDone lists
- An AI Detector and an AI Humanizer. Its FAQ says the detector analyses text from ChatGPT, Claude, Gemini and Llama-based tools.
- On ZeroTwo
- We do not list a detector or a humanizer as a ZeroTwo feature. Treat any detector score as one input, not proof. Whether a humanizer is allowed depends on your school's or employer's rules.
Plagiarism checking
ZeroTwo does not replace it- JustDone lists
- A Plagiarism Checker.
- On ZeroTwo
- We do not list a plagiarism checker as a ZeroTwo feature. If originality matters, run the final text through a dedicated checker or the one your institution uses.
JustDone tool names and descriptions are from justdone.com/pricing and justdone.com, read 5 October 2026. Its tools may change.
Moving a writing workflow over
The writing jobs move well when you give the model a real brief. The ZeroTwo AI writing assistant page shows the full loop and where it stops.
Test it on your own text
We have not captured a before-and-after sample from either product, so we do not show one. Run this instead.
- Take one paragraph you wrote or edited with JustDone last month.
- Give a ZeroTwo model the same instruction and the same source facts.
- Compare the two against your own bar: would you send it, fix it or redo it?
- Note anything you had to correct by hand. That is your real switching cost.
List what you actually used
JustDone lists 35+ tools in every plan. The count matters less than the two or three you opened last month. Write those down first.
Move the writing jobs
Start a chat with a brief: audience, purpose, a sample of your own writing and the facts you can stand behind. Then ask for one change at a time. The drafting-loop page walks through it.
Keep a checker for the checker jobs
If you relied on detection, humanizing or plagiarism checks, keep a dedicated tool for those. A chat workspace does not replace them.
Re-verify anything with a source
Open each citation and recheck every figure, whichever tool produced them. The assistant speeds up a draft; you stay accountable for the text.
Billing terms, side by side
JustDone's monthly plan sits between ZeroTwo Plus and Pro on price. Its $2.00 trial rolls into $29.99 a month, the same as ZeroTwo Pro, so read the renewal price before you click.
| Term | JustDone | ZeroTwo |
|---|---|---|
| What is included | 35+ AI tools in every plan, per its pricing page. | A chat workspace. Allowances differ by plan: Plus lists 1,650 monthly credits and Pro 3,500. |
| Free option | None on its pricing page. Plans begin with 7-day access for $2.00. | A Free plan with 100 free credits to start. No card required. |
| Trial | 7-day access at $2.00, then it auto-renews monthly at $29.99. | No free trial. The Free plan is a standing tier instead. |
| Monthly price | Pro Monthly is $19.99 a month and auto-renews monthly. | Plus is $14.99 a month. Pro is $29.99 a month. |
| Annual price | Pro Annual is $119.88 a year ($9.99 a month) and auto-renews annually. | Plus is $11.99 a month and Pro is $26.99 a month, billed annually. |
| Renewal | Auto-renews on every plan. | Renews automatically until you cancel. |
| Cancelling | In account settings or through support. Cancelling stops renewal, and access runs to the end of the period. | From your account settings, at any time. |
| Refunds | Not checked. Read its terms before paying. | None, apart from the narrow cases in our refund policy. |
JustDone terms from justdone.com/pricing and its homepage FAQ, read 5 October 2026. ZeroTwo terms from our pricing page and refund policy. Both vendors can change plans, so confirm before paying.
Before you start any trial
- Find the price after the trial and the date it first charges, before you enter a card.
- Find where cancelling lives, and whether it is self-service.
- Check whether the plan you land on renews monthly or annually.
- Read the refund terms. ZeroTwo's are on the refund policy page and are strict.
Questions about switching
What is the best JustDone alternative?
It depends on which JustDone tools you use. For drafting, rewriting and summarising, a chat workspace such as ZeroTwo can take over. For AI detection, humanizing and plagiarism checking it does not, so keep a dedicated tool for those jobs.
Does ZeroTwo have an AI detector or plagiarism checker?
No. We do not list an AI detector, a humanizer or a plagiarism checker as ZeroTwo features. Treat any detector score as one input, not proof.
How does JustDone pricing compare with ZeroTwo?
The two are priced differently and JustDone's plan names, trial and renewal terms are set out in the comparison table on this page, with a link to its own pricing page. ZeroTwo Plus is $14.99 a month and Pro is $29.99 a month, with $26.99 a month for Pro billed annually. The products differ, so price alone does not decide it.
Can I cancel ZeroTwo easily, and can I get a refund?
You can cancel from your account settings at any time, and paid plans renew automatically until you do. Refunds are limited to the narrow cases in the refund policy, so check it before you pay. ZeroTwo has no free trial; the Free plan needs no card.
Which models can I use on ZeroTwo?
More than 60 models from OpenAI, Anthropic, Google, xAI and others, with a limited selection on the Free plan. JustDone's homepage describes its chat as powered by GPT4, and we do not know which models its other tools use.
Does ZeroTwo have writing templates like JustDone?
Not as a menu of 35 tools. You describe the job to a model and ask for changes one at a time. The AI writing assistant and AI tools pages show common writing jobs.
Who wrote this page?
ZeroTwo, which competes with JustDone. JustDone's prices, tool names and cancellation wording come from its own pages, read on 5 October 2026. We did not run a before-and-after writing test, so the page publishes none.
Keep going
- AI writing assistant
The brief, draft and revise loop, with its limits.
- AI rewriter
Rewrite your own text in a different register.
- AI grammar checker
Proofreading with a model, and where it stops.
- AI summarizer
Summaries you check against the source.
- AI tools
ZeroTwo's tools and use-case pages in one place.
- Compare ZeroTwo plans
Allowances for every plan side by side.
Comparing assistants rather than writing tools? See the ChatGPT alternative page.