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Comparison guide
IB IA feedback tools compared (2026)
IB Internal Assessment feedback tools differ in how they handle rubric context, criterion-level scoring, academic-integrity boundaries, supported subjects, pricing and data handling. The table below separates vendor-published claims from what iBacalao has actually checked.
How we evaluated these tools
iBacalao publishes this comparison and is one of the products listed. We compared tools using public product pages and hands-on checks of iBacalao (competitor feature set last checked 2026-09-22). We did not run a blind bake-off across every competitor account. Rows reflect advertised features and stated rubric alignment, not a claim that any tool predicts exam marks.
Evidence sources
Competitor rows are attributed to the vendor's public product surface checked on 22 September 2026 unless noted otherwise. A vendor's accuracy or performance claim is not treated as independently validated by iBacalao.
- iBacalao: iBacalao product pagePublisher-owned product information; hands-on checks performed by iBacalao.
- RevisionDojo: RevisionDojo Coursework GraderPublic product page; competitor account not independently bake-off tested by iBacalao.
- Clastify: Clastify IA exemplarsCurrent public exemplar/mark-scheme surface found; iBacalao did not independently verify a current universal IA-grader workflow.
- IBLens: IBLens product pagePublic product page; current page advertises subject/session-specific reads and a first preview.
- MyRevisionAgent: MyRevisionAgent IA GraderVendor page currently reports validation on IB-awarded work and accuracy statistics; those figures are vendor-reported and have not been independently validated by iBacalao.
- ChatGPT: OpenAI ChatGPT pricingOfficial OpenAI product/pricing source; ChatGPT is a general-purpose product rather than an IB-specific grader.
| Feature | iBacalao | RevisionDojo | Clastify | IBLens | MyRevisionAgent | ChatGPT | Teacher feedback |
|---|---|---|---|---|---|---|---|
| Rubric accuracy | Configured IB assessment criteria and mark-band descriptors per subject/session | IB-aligned rubrics; depth varies by product surface | Public site prominently exposes marked exemplars and mark-scheme breakdowns; current AI-grader scope should be verified on site | IB rubric alignment claimed per subject | Per-subject IA rubrics claimed on the public grader page | General-purpose; rubric context must be supplied or otherwise available | Teacher use of current subject criteria depends on school calibration and session |
| Criterion scoring | Criterion-by-criterion with ranked improvements | Criterion-style feedback on IA/EE products | Varies by current review / AI-assistant surface — verify before relying on it | Holistic + criterion breakdown (product-dependent) | Predicted band + criterion-by-criterion breakdown advertised | Format depends on the prompt, model and context supplied | Criterion-level comments |
| Academic integrity | Feedback only — never writes draft text | Mixed — includes study content; check each feature | Public exemplars warn students not to copy or submit sample work as their own | Check whether feature rewrites text | Public page describes grading and feedback rather than replacement draft writing | Can generate text; assessed AI-generated material must be acknowledged and referenced under IB guidance | School- and teacher-governed formative feedback |
| Pricing | Student Plus free monthly; Pro / Ultra for higher limits | Freemium; paid tiers on public pricing page | See current public site | See public pricing page | First grade free on the current public site; verify paid pricing before purchase | Free and paid plans — verify current OpenAI pricing | School-dependent |
| Subjects covered | All 26 supported Diploma Programme subjects | Broad IB subject coverage | Broad IA exemplar coverage | Multiple IB subjects | 27 IA subject-levels advertised | General-purpose; subject/rubric context depends on the conversation | Subject teacher's expertise only |
| EE & TOK | Extended Essay + TOK essay | EE and TOK features advertised | IA, EE and TOK exemplar libraries; current grader scope should be verified | Varies by plan | TOK, Extended Essay and IA graders advertised | Can work with EE/TOK criteria when the relevant context is supplied | Supervisor feedback per school process |
| 2025–2027 rubrics | 2027 EE rubric; FA 2025 science IAs; Psychology 2027 proposal | 2027 materials marketed on site | Verify the exact assessment session on the current product surface | Not always explicit — verify for your session | Verify the exact assessment session before relying on a grader | No session-specific rubric guarantee | Depends on coordinator guidance |
| Upload formats | Paste or upload draft; subject selected per review | In-app draft upload | Varies by product surface | Web upload | PDF upload advertised | Paste text | School workflow |
| Turnaround | Seconds per review | Near-instant on advertised grader flows | Verify current product surface | Minutes typical | 4–6 minutes advertised for IA grading | Seconds | School- and teacher-dependent |
| Turnitin / repository risk | No submission record created | Not a Turnitin submission — confirm per school policy | Not established by the source checked — confirm before use | Unknown — confirm before use | No direct Turnitin submission claim identified on the page checked — confirm with school | No direct Turnitin submission; data handling depends on plan and settings | School-dependent |
Frequently asked questions
- What should I compare when choosing an Internal Assessment feedback tool?
- Check whether the tool identifies the exact subject and assessment session, shows criterion-level evidence, separates feedback from replacement writing, explains data handling, and documents how its claims were tested. iBacalao supports 26 subjects, EE, and TOK, but this page does not rank a universal winner.
- Can ChatGPT use an IB Internal Assessment rubric?
- Yes, if the relevant rubric is supplied or otherwise available in the conversation. What a general-purpose ChatGPT conversation does not inherently guarantee is that the current rubric for the student’s exact subject and assessment session is the one being applied. iBacalao binds its review workflow to configured subject/session criteria.
- Is AI feedback allowed for IB Internal Assessments?
- The IB does not ban AI tools. If AI-generated material is included in assessed work, it must be acknowledged and referenced; presenting AI-produced work as the student’s own is academic misconduct. Schools may add their own rules. iBacalao is designed to comment on student-authored drafts rather than generate replacement assessment text.
- How much do Internal Assessment feedback tools cost?
- iBacalao offers Student Plus free every month with no credit card. Pro and Ultra remain available for higher limits. Competitor pricing changes — check each site's public pricing page. Teacher feedback is free through your school but limited by availability.
- Does Internal Assessment feedback create a Turnitin record?
- iBacalao does not submit your draft to Turnitin. Your text is used to generate feedback and, if you're signed in, an extract is kept in your review history — deletable anytime from your account. Always confirm your school's policy before using any external tool.
Ready to try rubric-grounded feedback? Upload your draft for any of 26 supported Diploma Programme subjects, or read ChatGPT vs iBacalao for IA feedback.
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