# Red Rover K12 vs SubSpark

The clearest difference is review sentiment: SubSpark at 100% against Red Rover K12's 61%. SubSpark also leads on update cadence (every 4 days vs monthly) and rating (5.0 vs 4.7). Red Rover K12's advantage is ratings volume (43K vs 8) and chart position (#166 vs unranked). On price, ads, in-app purchases and monetization model there is nothing between them.

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

SubSpark holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Red Rover K12 has 43K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 61% of Red Rover K12's written reviews are positive against 100% of SubSpark's.

Red Rover K12 ships an update monthly, SubSpark every 4 days. The most recent releases landed on September 25, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Red Rover K12 | SubSpark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (43K ratings)](https://appshunter.io/ios/app/red-rover-k12/id1525229425/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/subspark/id6575345302/reviews)** |
| Number of ratings | **43K** | 8 |
| Positive reviews | 60.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Free | Free |
| Best chart rank | **#166** | — |
| Size | 55 MB | 33 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Red Rover Technologies, LLC](https://appshunter.io/developer/1525229427) | [SubSpark, LLC](https://appshunter.io/developer/1759240288) |

## What reviewers say

### Red Rover K12

[App page](https://appshunter.io/ios/app/red-rover-k12/id1525229425)

**Currently charting:** #166 Top Free · Education (US App Store)

This app simplifies absence management for K12 school districts. It allows employees to register absences, substitutes to find and accept assignments, and administrators to manage the entire process. Receive instant notifications and sync assignments to your calendar.

**Highlights:** Register, change, or cancel absences, Book and accept substitute assignments, Manage employee and substitute availability, Sync assignments to personal calendar, Approve and verify absences, Instant notifications for assignments

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Convenient and easy to use
- 👍 User-friendly interface
- 💡 Flexible scheduling options
- 🚀 Timely notifications of job openings
- 👍 Efficient job management

**What reviewers complain about**

- 🐛 Delayed or unreliable notifications
- 🐛 Disappearing job listings
- 🐛 Inconsistent filtering and preferences
- 🐛 Calendar integration issues
- 🐛 Crashes and glitches

**Reported bugs**

- Login issues on certain devices
- Keyboard not hiding properly
- Inconsistent behavior when entering absences
- Syncing problems between app and website

**Requested features**

- Calendar view of available jobs
- Improved notification settings
- Ability to see job details before accepting
- Support for tablets and larger screens
- Two-way communication with teachers


### SubSpark

[App page](https://appshunter.io/ios/app/subspark/id6575345302)

This app streamlines substitute teacher management for schools. It allows administrators and teachers to quickly find, book, and manage substitute educators, eliminating the need for traditional, time-consuming methods. The platform aims to ensure consistent coverage and reduce scheduling chaos.

**Highlights:** Fast and easy booking of substitute teachers, Build and manage preferred substitute lists, All-in-one admin dashboard (desktop), Intuitive and user-friendly interface, Reduces scheduling complexity

**In-app purchases:** none


## Frequently asked questions

### Is Red Rover K12 free?

Red Rover K12 is free to download, with no in-app purchases.

### Is SubSpark free?

SubSpark is free to download, with no in-app purchases.

### Which has better reviews, Red Rover K12 or SubSpark?

SubSpark is rated higher. Red Rover K12 averages 4.7 out of 5 from 43K ratings, while SubSpark averages 5.0 from 8 ratings.

### Do Red Rover K12 or SubSpark have ads?

Neither Red Rover K12 nor SubSpark shows ads.

### Which is updated more often, Red Rover K12 or SubSpark?

Red Rover K12 ships an update monthly, and SubSpark every 4 days. Most recently, Red Rover K12 was updated on September 25, 2026 and SubSpark on September 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*