Penn Mobile vs Zetamac Arithmetic Practice
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Penn Mobile
Streamline your campus experience with essential tools for student life. Access study room bookings, dining hall menus and hours, course schedules, and laundry machine availability. Quickly find fitness facility hours and emergency services.
- Study room booking
- Dining hall hours and menus
- Course schedule access
- Laundry machine availability
- Fitness facility hours
- Emergency services access
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Study room booking, dining hall hours, course schedule, daily menus, laundry machine accessibility, fitness facility hours, and quick access to emergency services! Penn Mobile was designed by students in Penn Labs with the intention of making your school life simpler. What does this mean? No more carrying your laundry four floors up trying to find a laundry machine. No more hunting for dining hall hours on the web. And no more struggles trying to book a study room. You can now do it all at the press of a button. Enjoy!
Zetamac Arithmetic Practice
This app offers mental math practice tailored for quantitative finance professionals. It focuses on improving calculation speed and accuracy for complex numerical problems.
- Mental math practice
- Quantitative finance focus
- Calculation speed improvement
- Accuracy enhancement
- Numerical problem solving
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Zetamac - A mental math practice app used in the Quantitative Finance world.
Screenshots
Verdict
The clearest difference is update cadence: Zetamac Arithmetic Practice at daily against Penn Mobile's every 4 weeks. Zetamac Arithmetic Practice also leads on review sentiment (82% vs 53%). Penn Mobile's advantage is ratings volume (410 vs 18). On price, rating, ads and in-app purchases 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.
On the App Store both sit at effectively the same score — 4.6 for Penn Mobile against 4.7 for Zetamac Arithmetic Practice. That said, the two scores are not equally well evidenced: Penn Mobile has 410 ratings behind it against 18, so its average is the more settled of the two. Written reviews are what separate them: 53% of Penn Mobile's written reviews are positive against 82% of Zetamac Arithmetic Practice's.
Penn Mobile ships an update every 4 weeks, Zetamac Arithmetic Practice daily. The most recent releases landed on September 8, 2026 and September 22, 2026 respectively.
| Parameter | Penn Mobile | Zetamac Arithmetic Practice |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (410 ratings) | 4.7 (18 ratings) — better |
| Positive reviews | 52.6% of reviews | 82.4% of reviews — better |
| Number of ratings | 410 — better | 18 |
| Update frequency | Every 4 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 17.5 — better |
| Further details — not scored | ||
| Size | 31 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | University of Pennsylvania | Joseph Ma |
Customer experience
Penn Mobile
Zetamac Arithmetic Practice
Bugs and requests
Penn Mobile
Reported bugs
9 issues- Unable to log in after Duo pop-up
- Cannot load dining halls or retail dining
- Unable to log in with PennKey
- App does not open after recent update
- App prompts to log in every time
Show 4 moreShow fewer
- App does not save login after exiting
- Pop-up message: "Couldn't connect to API"
- App crashes frequently
- Dining hall information is incorrect or not shown
Requested features
6 requests- Include fitness center hours
- Include building directory of campus
- Fix API connection issues
- Update app for better stability
- Fix login bugs
Show 1 moreShow fewer
- Improve login persistence
Zetamac Arithmetic Practice
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Penn Mobile
No in-app purchases
Zetamac Arithmetic Practice
No in-app purchases
Questions
Is Penn Mobile free?
Is Zetamac Arithmetic Practice free?
Which has better reviews, Penn Mobile or Zetamac Arithmetic Practice?
Do Penn Mobile or Zetamac Arithmetic Practice have ads?
Which is updated more often, Penn Mobile or Zetamac Arithmetic Practice?
Other comparisons
