Comparison

Bus993 vs Greatest Common Factor

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

Head to head
About

Bus993

This app allows parents to track their child's school bus in real-time, receive notifications for pick-up and drop-off, and mark attendance. It enhances communication between parents and drivers, ensuring child safety during commutes.

Highlights
  • Real-time bus tracking
  • Mark attendance (present/absent)
  • Notifications for pick-up/drop-off
  • SMS alerts for bus activity
  • View child's location on map
  • Estimated Time of Arrival (ETA)
Features
Read full description

Parent app is one of the four applications in the integrated module of Bus 993. In this integrated module, there are total four applications which have different purposes but same goal. All these applications together make the perfect school bus safety application module. It has different and customized app for parents, drivers, schools and Local RTOs. In particular, Parent app of Bus 993 is specially customized to meet all the needs of every school child's parent. This application has been designed in such a way that it can meet all the requirements of every parent who wishes to keep their kids safe in school buses. Parents can use this app in various ways. This app is synced with the school bus driver's app which helps keep communication clear between the parent and the school driver. It has many features that support the vision and goal of Bus 993 that is to keep every school children safe and secure while commuting to and from school. We suggest all the parents to download this app to utilize our services. Bus 993 has changed the lives of many parents as it has made the communication between them and the driver clear and effective. We all know that while driving, the driver must not attend calls or texts but with our app, they don't have to attend calls from parents as it automatically sends all the necessary information to them. With this app, parents can stay connected to their kids and school bus driver. Now, let us take a look at the numerous features of this app: 1) Mark Attendance - Through this parent app, you can mark attendance to inform the drivers whether your kid is coming to school or not. Just in case, if your kid is not attending the school on some day then mark absent in this application so that the driver does not miss the pick-up of your kid. It also saves the time and fuel of the drivers. Sometimes drivers miss the pick-up just because the kid is few minutes late and they assume that the kid won't attend the school that day which creates misunderstanding. Thus, marking the attendance in this app is the best way to ensure daily pick-up and clear communication. 2) Get Notifications and SMS Alerts - Once you download the app, you will receive notification of every action regarding the school bus. This app notifies you whenever the bus picks-up the kid and drops the kid back home. Other than that, you also get notifications whenever your child sits in the bus after or before school and it also sends the information of the person who received the child at the pick-up point. Not just notifications, you will also receive SMS alerts of the same. 3) Live Tracking - One of the best features of this app is the live tracking feature that is synced with the driver's app and it notifies every moment of the bus and driver in real-time. The app has a built-in GPS and map which send the location off your kid directly to your phone or iPad. 4) ETA (Estimated Time of Arrival) - The app calculates and displays the exact time of arrival of your kids at the drop location. The time is calculated after considering the traffic on the road, bus speed, distance and some other factors which are calculated in real-time.

About

Greatest Common Factor

This app helps users find the factors of numbers, calculate the Greatest Common Factor (GCF) for two or more numbers, and simplify fractions. It's a useful tool for understanding number theory concepts and performing fraction simplification.

Highlights
  • Find factors of a number
  • Calculate GCF of two or more numbers
  • Simplify fractions
  • Understand number theory concepts
  • Fraction simplification tool
Features
Read full description

The factors of a number are all the integers that you can evenly divide into that number. The Greatest Common Factor (GCF) is the greatest integer that divides exactly into two or more numbers with no remainder. The Greatest Common Factor is used to simplify fractions. To simplify a fraction, you can divide the numerator and denominator of the fraction by the GCF of the numerator and denominator. Factors, the Greatest Common Factor, and simplifying fractions go hand-in-hand. Use this app to get the factors of a number, get the Greatest Common Factor of two or more numbers, and to simplify fractions.

Screenshots

Bus9934 screens
Greatest Common Factor4 screens

Verdict

The call

The clearest difference is monetization model: Bus993 at free against Greatest Common Factor's paid. Bus993 also leads on update cadence (every 2 months vs every 38 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

Bus993 ships an update every 2 months, Greatest Common Factor every 38 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Bus993 versus Greatest Common Factor: the parameters behind the verdict, then further details
ParameterBus993Greatest Common Factor
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 2 months — betterEvery 38 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better14.1
Further details — not scored
Size38 MB1 MB
Age rating4+4+
DeveloperRoadcast Tech Solutions Private LimitedH Valeur

Customer experience

Bus993

Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Greatest Common Factor

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Bus993

No in-app purchases

None

Greatest Common Factor

No in-app purchases

Questions

Is Bus993 free?
Bus993 is free to download, with no in-app purchases.
Is Greatest Common Factor free?
Greatest Common Factor is free to download, with no in-app purchases.
Do Bus993 or Greatest Common Factor have ads?
Neither Bus993 nor Greatest Common Factor shows ads.
Which is updated more often, Bus993 or Greatest Common Factor?
Bus993 ships an update every 2 months, and Greatest Common Factor every 38 months. Most recently, Bus993 was updated on November 2, 2026 and Greatest Common Factor on October 30, 2026.

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