Best AI for Public Forum debate
DebateOwl makes one of the tools on this page. Facts about other products come from their own websites, checked on October 29, 2026. Check them before you pay.
Last updated: October 29, 2026
What should I use for Public Forum debate?
For Public Forum, start with DebateOwl when you want a case you can read out, "If they say… we answer…" replies, crossfire drills, and Sparring at the 4-4-3-2 speech times, for $5/month after a 3-day free trial. PublicForumAI is built only for PF and has free practice rounds. Cardinal focuses on finding and cutting evidence. Prilo covers PF, Lincoln-Douglas and Policy with a cross-examination simulator.
The pick for a Public Forum case and a timed round
DebateOwl is the first name in the speech table because it covers the case you read, the replies, the crossfire drill and the timed speeches together. The DebateOwl app has no free plan (3-day free trial, then $5/month); the separate timer, motion generator, flow sheet and speech-time calculator are free with no account. The rules of the format, without the tool comparison, are on Public Forum debate. Question drills are in how to cross-examine, and weighing is in how to weigh. The wider list is the short answer. Prices are on free vs paid.
- A PF case you can read out
- "If they say… we answer…" replies
- Crossfire as its own drill
- Sparring at 4-4-3-2, then $5/month
Sparring runs the PF speeches at those times and ends with a judged verdict. It does not insert the three crossfire periods. Practise those in Crossfire. The free timer does run the crossfires and the prep banks, and the flow sheet prints the columns. Clash is where you decide which argument the summary should keep.
Speech by speech
| PF speech | What you need | Tools that help |
|---|---|---|
| Constructive (4 min) | A clear two-argument case with evidence | DebateOwl case generator. PublicForumAI's case writer. Cardinal's card cutter. |
| Crossfire (3 min, three times) | Fast questions and answers | DebateOwl Crossfire drills. Prilo's 3-minute cross-examination simulator. PublicForumAI says it doesn't yet have a crossfire feature, "it's in the works". |
| Rebuttal (4 min) | Answers to their case | DebateOwl "If they say… we answer…" replies, plus Attack. Prilo's AI rebuttal drafts. |
| Summary (3 min) and final focus (2 min) | Collapse onto the points that decide the round | DebateOwl's Sparring verdict and Ask coach. PublicForumAI's full rounds, with a judge ballot and tech or lay feedback. |
| Evidence | Real sources you can open | Cardinal searches the web and opencaselist and cuts cards. PublicForumAI Premium adds real sourced evidence with working links. DebateOwl Factoids names sources you still have to check. |
| Flowing | A record of every argument | PublicForumAI's AI Flow, with speech recognition. Prilo's flowing practice. DebateOwl's free printable flow sheet. |
DebateOwl for Public Forum
Best for students who want case writing, replies, crossfire and full speech rounds in one place at a low price. The case is an opening, two to four arguments with evidence and why each matters, the replies, a closing line and the sources. For PF, the first constructive carries the arguments, and the rebuttal is where you answer theirs without pretending a new argument belongs there. The app is in English, Spanish and Hungarian. The free timer has prep banks. The app is paid after the 3-day trial.
PublicForumAI, the PF-only practice round
Best for PF debaters who want a free, PF-only practice round. It was started in 2024 by students on a high school debate team in New York City. The free plan has 3 rounds a month and 5 cases a month. Premium is $9.99 a month or $79 a year. A round takes about 35 minutes including prep, without crossfire. There are middle school and high school difficulty levels. Its tools are for practice, not for live rounds. P3 P18
Cardinal, for the cards
Best for evidence work. Five tools are marked free, and the site calls the core tools free forever. Pro is $10 a month or $75 a season. Card search runs over the web and opencaselist. P7
Prilo, for circuit drills
Best for NSDA-circuit debaters who want cross-examination and flowing drills. It is $15 a month or $60 a year, and it covers Lincoln-Douglas, Public Forum and Policy, with a 3-minute cross-examination simulator and speech analytics. P8
A tiny PF reply block
This is an example resolution, not a claim about the current NSDA topic: "Resolved: Public schools should give students one homework-free weekend a month."
One argument, on the proposition. A weekend with no homework gives students time to sleep and to show up on Monday able to listen. The reason is ordinary: homework that fills both days crowds out the rest a student needs before a week of class. Why it matters: a tired first speech, in class or in a round, is a worse speech.
- If they say "Students will fall behind", we answer: one weekend a month is not the end of practice, and the other weekends still carry the load.
- If they say "Homework is how you learn", we answer: learning also needs a break, and a single protected weekend does not delete the assignments on the other days.
- If they say "Families will fill the time with more activities", we answer: that is the family's choice, and the school's job is not to occupy every hour so the choice never comes up.
Public Forum questions
What should I use for Public Forum?
Start with DebateOwl if you want the case, the replies, crossfire drills and timed speeches in one place. PublicForumAI is the free, PF-only practice round. Cardinal is the evidence tool. Prilo is the circuit tool with a cross-examination simulator and flowing drills.
Is there a free AI for PF practice?
Yes. PublicForumAI's free plan has 3 full practice rounds a month, and Cardinal lists five free tools, described as free forever.
Can AI do crossfire practice?
Yes. DebateOwl has timed Crossfire drills, and Prilo has a 3-minute cross-examination simulator. PublicForumAI says it doesn't yet have a crossfire feature, "it's in the works".
Can I use AI during a PF round?
PublicForumAI itself says its tools are for practice, not for live rounds. Check your league's rules.
How much does DebateOwl cost for PF?
Pro is $5/month + tax after a 3-day free trial, with no permanent free plan. The PF timer with prep banks and the flow sheet are free.
Sources for the PF tools
- https://publicforumai.com/. PF only, started in 2024 by NYC high school debaters, no crossfire feature yet, about 35 minutes, tech or lay judge, not for live rounds. Checked Oct 29, 2026.
- https://publicforumai.com/pricing. Free plan and Premium at $9.99/mo or $79/yr. Checked Oct 29, 2026.
- https://cardinaldebate.org/. Card search, five free tools, Pro at $10/month or $75 a season. Checked Oct 29, 2026.
- https://www.prilo.ai/nsda. PF, LD and Policy, the 3-minute simulator, $15/month or $60/year. Checked Oct 29, 2026.