Professor Index vs Teacher Meter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Professor Index
This app allows college students to rate and review professors and courses, providing insights into teaching effectiveness and course relevance. Students can compare professor profiles and make informed enrollment decisions based on peer feedback.
- Rate and review professors
- Get feedback on future professors
- Compare professor profiles
- Make data-informed enrollment decisions
- Gamified review incentives
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Professor Index (PI) is a user-friendly mobile app that enables college students to voice their opinions on various aspects of their higher educational experience, ranging from the effectiveness of their professors’ teaching methodologies to the relevance of their course materials. Students can rate and review their professors, request and get feedback about their future professors and courses at a glance, compare different professor profiles, and ultimately, make data-informed class enrollment decisions. To enhance engagement and response rates, PI uses gamification and nudging algorithms to incentivize students to actively review their professors by rewarding meaningful, objective, and fair reviews.
Teacher Meter
This tool allows students to provide feedback on their teachers' effectiveness and gauge the difficulty of subjects based on the instructor. It helps students compare classes in advance to set realistic expectations and prepare accordingly.
- Teacher effectiveness rating
- Class difficulty assessment
- Compare classes
- Prepare for classes
- Set realistic expectations
- Assignment notifications
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Pick your classes with something better than rumor. Teacher Meter is a student-built guide to the teachers and classes at your school, written by the students who actually took them. No school account, no sign-in, nothing to connect. WHAT STUDENTS RATE • Difficulty, on a scale that means something • Hours of work per week • What grade they came out with • Tags like Tough Grader, Clear Grading Criteria, Rounds Grades, Extra Credit PLAN YOUR YEAR Compare classes side by side before you pick them. See which teachers are worth the early period and which classes are heavier than their name suggests. LEADERBOARD Hardest and easiest classes at your school, ranked from the ratings students have left. SOCIAL A chat for your school and one for each of your classes. You choose your own name and password. UC GPA CALCULATOR Work out your UC GPA with the real a-g rules: 10th and 11th grade only, pluses and minuses ignored, honors points capped at eight with at most four from 10th. TRY IT FIRST The gradebook screens are a worked example built from sample data, so you can see how the app works before entering anything. PRIVACY Ratings are anonymous. Social shows the name you pick and nothing else. This app does not connect to any school records system and does not ask for a school login. Teacher Meter is independent and student-run. It is not affiliated with, endorsed by, or operated by any school, school district, or maker of school software.
Screenshots
Verdict
The clearest difference is update cadence: Teacher Meter at every 9 days against Professor Index's monthly. Teacher Meter also leads on review sentiment (100% vs 88%). Professor Index's advantage is iOS requirement (13.0 vs 15.5). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Professor Index holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 59 and 20 respectively. Written reviews complicate that: 88% of Professor Index's written reviews are positive against 100% of Teacher Meter's, so the app with the better star average is not the one people write more warmly about.
Professor Index ships an update monthly, Teacher Meter every 9 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.
| Parameter | Professor Index | Teacher Meter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (59 ratings) — better | 4.3 (20 ratings) |
| Positive reviews | 88.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 59 — better | 20 |
| Update frequency | Monthly | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 57 MB | 53 MB |
| Age rating | 4+ | 12+ |
| Developer | Professor Index, LLC | Reva Kasula |
Customer experience
Professor Index
Teacher Meter
In-app purchases
Professor Index
No in-app purchases
Teacher Meter
No in-app purchases
Questions
Is Professor Index free?
Is Teacher Meter free?
Which has better reviews, Professor Index or Teacher Meter?
Do Professor Index or Teacher Meter have ads?
Which is updated more often, Professor Index or Teacher Meter?
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