Comparison

Permutation and Combination vs Safe UTulsa

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Permutation and Combination

Easily calculate permutations and combinations with this educational tool. It provides a straightforward way to solve mathematical problems related to arrangements and selections.

Highlights
  • Calculate permutations
  • Calculate combinations
  • Easy to use interface
  • Educational tool
Features
Read full description

This application can calculate permutation and combination easily.

About

Safe UTulsa

Read full description

Safe UTulsa is the official safety app of The University of Tulsa. It is the only app that integrates with The University of Tulsa's safety and security systems. TU Security has worked to develop a unique app that provides students, faculty and staff with added safety on the The University of Tulsa campus. The app will send you important safety alerts and provide instant access to campus safety resources. Safe UTulsa features include: - Emergency Contacts: Contact the correct services on and off-campus for The University of Tulsa area in case of an emergency or a non-emergency concern. - Virtual WalkHome: Allow Campus Security to monitor a user’s walk. If a user feels unsafe when walking on campus, they can request a Virtual WalkHome and a dispatcher on the other end will monitor their journey until they reach their destination. - Friend Walk: Send your location to a friend through email or SMS on your device. Once the friend accepts the Friend Walk request, the user picks their destination and their friend tracks their location in real time; they can keep an eye on them to make sure they make it safely to their destination. - Emergency Button: Send your location to The University of Tulsa security in real-time in case of a crisis - Tip Reporting: Multiple ways to report a safety/security concern directly to The University of Tulsa security. - Mental Health Resources: Access mental health support resources in one convenient app for a successful experience at The University of Tulsa. - Emergency Response Plans: Campus emergency documentation that can prepare you for disasters or emergencies. This can be accessed even when users aren’t connected to Wi-Fi or cellular data. - Campus Maps - Interactive Campus Map: Navigate around The University of Tulsa area. - Navigate Campus: Use the navigation app to provide directions to campus buildings. - Storm Shelters: Discover essential tips and precautions to protect yourself and your property during these challenging weather events. - Safety Toolbox: Enhance your safety with the set of tools provided in one convenient app. - Chat with TU Security: Communicate live with safety staff at The University of Tulsa via chat. - Notification History: Find previous Push Notifications for this app with the date and time. - Share Map with your Location: Send your location to a friend by sending them a map of your position. - I’m OK!: Send your location and a message indicating that “You’re OK” to a recipient of your choosing. - Sexual Assault Resources: Access sexual assault resources for a safe experience at The University of Tulsa. - Safety Notifications: Receive instant notifications and instructions from The University of Tulsa safety when on-campus emergencies occur. Download today to ensure you’re prepared in the event of an emergency.

Screenshots

Permutation and Combination1 screens
Safe UTulsa4 screens

Verdict

The call

The clearest difference is update cadence: Safe UTulsa at every 3 months against Permutation and Combination's every 40 months. On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Permutation and Combination ships an update every 40 months, Safe UTulsa every 3 months. The most recent releases landed on September 10, 2026 and September 6, 2026 respectively.

Scorecard1 real difference · 9 level
Permutation and Combination versus Safe UTulsa: the parameters behind the verdict, then further details
ParameterPermutation and CombinationSafe UTulsa
PriceFreeFree
Rating4.1 (13 ratings) — better—
Positive reviews44.4% of reviews—
Number of ratings13 — better—
Update frequencyEvery 40 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPod, Apple WatchiPhone, iPad, iPod
Requires iOS12.1 — better13.0
Further details — not scored
Size23 MB28 MB
Age rating4+4+
DeveloperKeiji MatsuiThe University of Tulsa

In-app purchases

None

Permutation and Combination

No in-app purchases

None

Safe UTulsa

No in-app purchases

Questions

Is Permutation and Combination free?
Permutation and Combination is free to download, with no in-app purchases.
Is Safe UTulsa free?
Safe UTulsa is free to download, with no in-app purchases.
Do Permutation and Combination or Safe UTulsa have ads?
Neither Permutation and Combination nor Safe UTulsa shows ads.
Which is updated more often, Permutation and Combination or Safe UTulsa?
Permutation and Combination ships an update every 40 months, and Safe UTulsa every 3 months. Most recently, Permutation and Combination was updated on September 10, 2026 and Safe UTulsa on September 6, 2026.

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