Comparison

InstaSub vs Glenburn School

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

Head to head
About

InstaSub

This app streamlines job management for educators and administrators. It allows substitutes to easily accept or decline jobs, while teachers can post and manage absences. Administrators benefit from efficient scheduling and reporting tools.

Highlights
  • Accept/Decline jobs
  • View job history
  • Post and manage absences
  • Schedule substitute requests
  • Approve/Deny time-off
  • Absence reporting
Features
Read full description

The InstaSub mobile app provides a quick and easy way to view and accept jobs, post absences, request subs and manage absences. Features include: Substitutes can: Accept/Decline jobs with a click View Available Jobs, Scheduled Jobs and Past Jobs View and update Notification Settings for email, text and push alerts Teachers can: Post Absences View Scheduled, Past and Denied Absences Post Internal Coverage Absences Cancel Absences Admins can: Scheduling Sub Requests Approve/Deny time-off requests View Filled Jobs and Unfilled Jobs Daily/Monthly Absence Reports An InstaSub account with Substitute, Teacher, or Admin permission is required to use this app. About InstaSub In addition to our time tracking and employee scheduling solutions, InstaSub gives users the ability to offer a highly efficient way to manage absences for teachers. InstaSub continues to provide K-12 administrators with the functionality they need to ensure optimal staffing, centralized reporting, and automated notifications to streamline communication.

About

Glenburn School

Stay informed about school events, receive customized notifications for your student's organizations, and access weekly cafeteria menus. Get district updates and easily find staff contact information.

Highlights
  • Event calendar with sharing
  • Customizable student organization notifications
  • Weekly cafeteria menus
  • Live district updates feed
  • Staff and department directory
Read full description

Introducing the brand new app for Glenburn School. NEVER MISS AN EVENT The event section shows a list of events throughout the district. Users can add an event to their calendar to share the event with friends and family with one tap. CUSTOMIZE NOTIFICATIONS Select your student's organization within the app and make sure you never miss a message. CAFETERIA MENUS Within the dining section, you'll find an easy to navigate, weekly menu, sorted by day and meal type. DISTRICT UPDATES In the Live Feed is where you'll find updates from the administration about what's going on in the district right now. Whether that's celebrating a student's success, or reminding you about an upcoming deadline. CONTACT STAFF & DEPARTMENTS Find relevant staff and department contacts under an easy-to-navigate directory.

Screenshots

InstaSub4 screens
Glenburn School4 screens

Verdict

The call

The clearest difference is rating: InstaSub at 4.5 against Glenburn School's 2.0. InstaSub also leads on ratings volume (259 vs 2) and device support (3 vs 1). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

InstaSub holds the better App Store score, 4.5 against 2.0. That said, the two scores are not equally well evidenced: InstaSub has 259 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

InstaSub ships an update every 6 weeks, Glenburn School every 3 months. Both last shipped on November 3, 2026.

Scorecard4 real differences · 6 level
InstaSub versus Glenburn School: the parameters behind the verdict, then further details
ParameterInstaSubGlenburn School
PriceFreeFree
Rating4.5 (259 ratings) — better2.0 (2 ratings)
Positive reviews0.0% of reviews—
Number of ratings259 — better2
Update frequencyEvery 6 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better16.0
Further details — not scored
Size24 MB152 MB
Age rating4+4+
DeveloperHumanity.com, LLCGlenburn School Department

Customer experience

InstaSub

All ratings241 ratings
Positive82.6%
Neutral8.3%
Negative9.1%
Written reviews6 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Glenburn School

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

InstaSub

No in-app purchases

None

Glenburn School

No in-app purchases

Questions

Is InstaSub free?
InstaSub is free to download, with no in-app purchases.
Is Glenburn School free?
Glenburn School is free to download, with no in-app purchases.
Which has better reviews, InstaSub or Glenburn School?
InstaSub is rated higher. InstaSub averages 4.5 out of 5 from 259 ratings, while Glenburn School averages 2.0 from 2 ratings.
Do InstaSub or Glenburn School have ads?
Neither InstaSub nor Glenburn School shows ads.
Which is updated more often, InstaSub or Glenburn School?
InstaSub ships an update every 6 weeks, and Glenburn School every 3 months. Most recently, InstaSub was updated on November 3, 2026 and Glenburn School on November 3, 2026.

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