Sell a lab report or problem set review by turning a completed assignment into a priced async request: a follower sends the document, you return written or voice feedback on their own work within a set turnaround, scoped as a review of understanding rather than a rewrite or an answer key. Custom Work lets you offer clearly scoped commissions and services: you set the price, the scope and the delivery time, and followers submit a brief and pay before you start.
No monthly fee, you only pay a small platform fee when you get paid. 8% platform fee when a follower pays for work, 5% platform fee on tips and goals. Card processing is separate. pricing
Chemistry, physics, biology, and engineering students routinely finish a lab report or problem set and want a second pair of eyes before they submit it: is the error analysis right, does the derivation hold up, is a conclusion actually supported by the data. The National Center for Education Statistics reports that total undergraduate enrollment in U.S. degree-granting postsecondary institutions was 15.4 million students in fall 2021 and is projected to reach 16.8 million by 2031 (NCES Fast Facts, Undergraduate Enrollment), and lab-based coursework inside that population generates gradeable documents every week of the term. A request to check one of those documents usually lands as a free DM to whichever tutor, TA, or upperclassman answers fastest. A priced, scoped offer moves the same request into a page where it can be paid, tracked, and answered on your schedule.
What counts as a lab report or problem set review?
A lab report or problem set review is feedback on a STEM assignment the client has already completed and sent to you — not a request to solve the problem set or write the report for them. The creator checks method, calculations, error analysis, or reasoning and returns marked-up notes, corrections, or a written explanation of what to fix.
The buyer for a review of that kind is frequently remote. The National Center for Education Statistics reports that 9.4 million undergraduates — 61 percent of all undergraduates — were enrolled in at least one distance-education course in fall 2021, and that 4.4 million took distance-education courses exclusively (NCES Fast Facts, Distance Learning). A student enrolled entirely online has no campus office hour to walk into, so a paid async review is often the only second read on a report that is available before the deadline.
The review-versus-rewrite distinction also decides the format. A follower can attach a finished document or set of worked problems to a custom request for a lab report review. Brillay's Custom Work documentation explains that a follower can attach their own reference files — the lab report draft, the problem set, or a scanned page of the work — to their brief when they place the order. Delivered video and audio files are capped at 20 minutes each on that same page, which is why a voice walkthrough of a lab report has to be edited down to the fixes that matter.
A single, narrow question about one calculation or one line of reasoning can stay a quick text exchange instead of a full document review — that narrower format is covered separately in how to charge for explaining a textbook concept. Scope the review around the artifact the student already produced: a completed lab report draft, a finished problem set, or a set of worked solutions. That keeps the offer distinct from building a forward-looking study plan or walking through open-ended homework help, which are different requests with different pricing.
Should a STEM review be a Paid Question or a custom request?
Use Paid Questions for one narrow question about a single calculation, result, or line of reasoning; use Custom Work any time a document, spreadsheet, image, or scanned page has to change hands. The dividing line is the file: a marked-up report has to move in both directions, while a one-line clarification never leaves the text thread.
Paid Questions let a follower pay upfront to ask one private question, and you send one written reply on your own time — no live call or scheduling.
| Need | Better-fit format | Why |
|---|---|---|
| "Why is my error analysis wrong on this one number?" | Paid Questions | One focused question with one written reply |
| Full lab report, PDF, or problem set to mark up | custom request | Requires a file upload and a returned document |
| Voice walkthrough of where a derivation goes wrong | custom request | The reply includes an audio file, not text alone |
| Ongoing weekly problem-set checks | custom request (recurring purchase) | Each week is a separate scoped review, not one open thread |
Paid Questions keep the scope narrow; for specialist STEM help, test a price around $20–$35 and adjust it for the time and expertise involved. Custom Work is the right fit once a document or recording is involved, because file attachments in either direction are part of the Custom Work flow.
How much should a lab report or problem set review cost?
There is no single correct price for a STEM document review, but a time-based formula gives a defensible starting point: price = your target hourly rate × the hours the review actually takes. Worked examples, not observed Brillay data: $15–$30 for a problem set check, $35–$75 for a full lab report review, and $30–$60 for a voice walkthrough.
Two published wage figures bracket the hourly rate to plug into that time-based formula. The U.S. Bureau of Labor Statistics reports a median annual wage of $43,350 for tutors as of May 2025 and publishes the same figure as $20.84 per hour (BLS Occupational Outlook Handbook, Tutors) — $20.84 an hour is the generalist floor an async STEM review competes against, so a 45-minute report review priced at that anchor lands near $16. Postsecondary teachers earned a median annual wage of $85,330 in May 2025 (BLS Occupational Outlook Handbook, Postsecondary Teachers), roughly $41.02 an hour on the same arithmetic, which is the anchor to use if you hold or are training toward a graduate credential in the subject — the same 45-minute review then prices near $31. Subject specificity, not effort alone, is what moves a review from the first anchor toward the second.
If a student wants a review every week, sell each check as a separate one-time Custom Work offer with the same fixed scope and price. U.S. postsecondary institutions conferred 435,506 bachelor's degrees in STEM fields in 2021–22 and 789,264 STEM credentials across all levels that year (National Center for Education Statistics, Fast Facts) — about 22% of the roughly 2.0 million bachelor's degrees conferred that year. Lab reports and problem sets are weekly deliverables inside those programs, so the buyer's need repeats on a course calendar rather than arriving once, which is the argument for pricing a per-term or weekly slot instead of only single reviews. Use your own review time, subject expertise, and the complexity of the assignment to set the price; broad employment projections do not show what students will pay for your specific service.
Run any candidate price through the fee math before publishing it. A $45 lab report review carries Brillay's 8% paid-work platform fee of $3.60 plus typical US online-card processing of 2.9% + $0.30, which is $1.61 on that amount (Stripe pricing) — about $39.79 left before income tax. A $25 problem set check nets about $21.98 on the same two published rates. Tips and goals from followers carry a 5% platform fee instead of 8%. Stripe's 2.9% + $0.30 is the US domestic online-card rate rather than a universal one. Stripe's published pricing adds 1.5% for international cards and a further 1% when currency conversion is required, so the same $45 lab report review bought with an overseas card nets about $38.67 instead of $39.79.
| Review type | Illustrative creator time | Illustrative price (before fees) | Deliverable | Suggested delivery time |
|---|---|---|---|---|
| Problem Set Check | 20-40 min | $15-$30 | Marked-up solutions with corrections and brief written notes | 24-48h |
| Lab Report Review | 45-90 min | $35-$75 | Section-by-section written notes on method, data, and conclusions | 48-96h |
| Voice Walkthrough | 20-30 min of reading plus a recording | $30-$60 | Client submits the document; creator replies with an audio explanation of key fixes | 48h |
| Weekly Recurring Check | Matches the tier being repeated | Per-week price of that tier | Same-format review repeated each week for an ongoing course | Set per purchase |
Every number in that table is illustrative — a worked example of the time-based formula above, not observed Brillay transaction data or a market survey. The suggested times are examples: you choose the delivery time for Custom Work, up to 5 days. Pick a window inside that cap you can meet consistently rather than promising same-day feedback on every request. (how it works)
How do you keep a review from crossing into academic dishonesty?
Frame the offer as feedback on work the student already completed, not as production of graded content, and ask the client to confirm outside help is allowed for that specific assignment before they submit it. Academic integrity rules are set per institution and often per course, so keep every deliverable inside "review and explain," never "produce and submit."
The International Center for Academic Integrity reports that more than 60 percent of university students freely admit to cheating in some form, drawing on research Donald McCabe began in 1990 and a March 2020 follow-up survey of 840 students. A paid outside reviewer is working against that background, which is why the scope of a review offer has to be written into the listing rather than settled case by case in DMs.
Indiana University's student code is one example of how a university draws the line between permitted and unauthorized outside assistance:
"On exams, term papers, and graded assignments, external assistance is presumed to be unauthorized unless the instructor or syllabus gives permission. On ungraded academic-related activities, students may use external assistance unless the instructor or syllabus prohibits their use." — Indiana University, Academic Misconduct
MIT's published procedures name problem sets and homework collaboration as the most ambiguous area in its academic-dishonesty policy:
"Particularly ambiguous areas are collaboration on problem sets and other homework assignments and the use of old solution sets or lab reports." — MIT Policies 10.2, Procedures for Dealing with Student Academic Dishonesty
MIT's procedures page also puts the duty to define the rule on the instructor: "it is therefore important for faculty members to explain as precisely as possible their expectations about the nature and extent of any collaboration or assistance from old materials they permit or encourage" (MIT Policies 10.2). Both policies are institution-specific and neither is universal — other schools set their own rules, and some treat lab reports differently from problem sets or exams. The practical takeaway for a seller is that the syllabus, not the platform, is the controlling document: build a standard line into your listing asking the client to confirm outside review is permitted for that assignment, and decline the request if it reads as a request to complete graded work rather than review it. Followers pay upfront; you can decline a request.
What should a lab report or problem set review listing include?
A listing should state five things before the client pays: what they send, what subject and level you cover, what comes back, how fast, and what is explicitly excluded. Those five fields are what keep a $40 review from turning into an unpaid tutoring relationship spread across a whole semester.
- Input: The completed lab report, problem set, or worked solutions, plus the assignment prompt or rubric if one exists.
- Subject and level: For example, "intro organic chemistry lab reports" or "calculus-based physics problem sets," so followers self-select correctly.
- Deliverable: A marked-up document, written notes, a recorded voice walkthrough delivered as a file or private link, or a stated combination — Brillay delivers text plus up to 5 files and/or a private link.
- Delivery time: A window you can reliably hit, inside Brillay's 5-day maximum delivery window for Custom Work.
- Scope: Define the review around checking the student's own completed work.
Related reading: how to write a custom request offer covers scoping a listing so requests stay inside what the buyer actually purchased.
What else can a STEM creator sell alongside document review?
A document review is one offer among several a STEM creator can turn on, and the others catch requests that do not involve a finished assignment: a single text question, an encouragement video, a tip on free study content, funding toward a study resource, and a separate inbox for ed-tech partnership inquiries.
- Paid Questions: One narrow question about one calculation, formula, or concept, with one written reply — the lighter-weight sibling covered in math tutors and paid homework help.
- Personalized Videos: Encouragement before a big exam or a congratulations video after a strong grade.
- Tips: A way for a student who found your free study content useful to contribute without buying a specific review.
- Goals: Funding toward a defined project, such as building out a bank of annotated example lab reports.
- Brand Collaboration Inquiries: A separate inbox for ed-tech tools or tutoring platforms that want to discuss a partnership rather than book a review.
Coding-specific document review is a different scope and is covered separately in sell code reviews online, since debugging a codebase is a different skill set from checking lab methodology or problem-set reasoning.
How do you get a STEM review offer live on Brillay?
Decide first whether the request is a narrow text question or a document that needs a file attachment, then write the listing with a defined subject, deliverable, delivery time, and exclusions before publishing it. The published setup steps are the same for every creator: create your page, turn on the offers you want at your own price and delivery time, and connect Stripe for payouts.
Those published steps are the whole gate: claim a link, set your own price and delivery time, connect Stripe — no credential check and no audience-size threshold appears in them. Clients pay by card without signing up for Brillay. Brillay's published steps cover its onboarding and checkout flow; institutional rules apply separately. Institutional rules sit on top of that checkout flow: some TA, graduate-assistant, and adjunct appointments carry outside-employment or conflict-of-interest terms, so check your program's own policy before selling reviews, and never sell to students enrolled in a course you help grade. The BLS median of $85,330 for postsecondary teachers in May 2025 (BLS Occupational Outlook Handbook) is the relevant benchmark for that group: it is the rate your institutional time is already valued at, so an outside review priced below its hourly equivalent of about $41 is worth doing only when the review is genuinely short.
This same async structure — Custom Work for the document review, Paid Questions for the quick question — works whether the audience is intro-level students or upper-division majors, and it applies equally to independent tutors covered in academic tutors on Brillay.
Frequently asked questions
Is it okay to sell feedback on a student's lab report or problem set?
It depends on the assignment and the institution. Reviewing a student's own completed work is different from writing new content or solving new problems for them, but Indiana University's code states that on "exams, term papers, and graded assignments, external assistance is presumed to be unauthorized unless the instructor or syllabus gives permission". Ask the client to confirm outside review is permitted for that specific assignment before starting.
Should I price a lab report review the same as a problem set check?
Not necessarily — a multi-section lab report with data analysis typically takes longer to review than a short problem set, so many creators price them as separate tiers rather than one flat rate. Illustrative tiers derived from a time-based formula, not from observed Brillay data: $15–$30 for a problem set check and $35–$75 for a full lab report review.
How long can I set the delivery time on a STEM review?
You can set the delivery time for Custom Work to anything from 1 hour to 5 days. Anything shorter is your own commitment rather than a platform setting, so pick the window you can hit during a heavy assignment week, not your fastest week.
Can a client attach a file to a Paid Question instead of buying a custom request?
No. Paid Questions are one typed question and one written reply, while Custom Work lets clients attach files and let creators deliver a written note plus up to 5 files.
What does Brillay charge for a lab report or problem set review?
A $45 lab report review nets about $39.79 after two separate charges, not one — Brillay's platform fee and Stripe's card-processing rate — both worked through step by step earlier on this page; international-card and currency-conversion fees vary, so check Stripe's current rates before estimating your earnings. Setup is claiming a link, turning on offers, and connecting Stripe for payouts, with no audience-size threshold in those published steps.
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