# InstaSub vs Tagg Subs

The clearest difference is rating: InstaSub at 4.4 against Tagg Subs's 3.0. InstaSub also leads on ratings volume (241 vs 2) and update cadence (every 6 weeks vs every 3 months). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

InstaSub holds the better App Store score, 4.4 against 3.0. That said, the two scores are not equally well evidenced: InstaSub has 241 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 0% and 0% positive.

InstaSub ships an update every 6 weeks, Tagg Subs every 3 months. The most recent releases landed on September 21, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | InstaSub | Tagg Subs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (241 ratings)](https://appshunter.io/ios/app/instasub/id1501485445/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/tagg-subs/id6747983679/reviews) |
| Number of ratings | **241** | 2 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 24 MB | 3 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Humanity.com, LLC](https://appshunter.io/developer/864258525) | [Tagg Education, LLC](https://appshunter.io/developer/1823700694) |

## What reviewers say

### InstaSub

[App page](https://appshunter.io/ios/app/instasub/id1501485445)

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:** Vision Pro support

**In-app purchases:** none


### Tagg Subs

[App page](https://appshunter.io/ios/app/tagg-subs/id6747983679)

This app connects independent substitute teachers with daily teaching opportunities. Users can select their preferred grades and subjects, and set their availability to find jobs that fit their schedule. It functions as a flexible platform for educators seeking contract work.

**Highlights:** Independent contractor model, Choose grade and subjects, Set personal availability, Receive daily job opportunities, Flexible work schedule

**In-app purchases:** none


## Frequently asked questions

### Is InstaSub free?

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

### Is Tagg Subs free?

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

### Which has better reviews, InstaSub or Tagg Subs?

InstaSub is rated higher. InstaSub averages 4.4 out of 5 from 241 ratings, while Tagg Subs averages 3.0 from 2 ratings.

### Do InstaSub or Tagg Subs have ads?

Neither InstaSub nor Tagg Subs shows ads.

### Which is updated more often, InstaSub or Tagg Subs?

InstaSub ships an update every 6 weeks, and Tagg Subs every 3 months. Most recently, InstaSub was updated on September 21, 2026 and Tagg Subs on August 13, 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.*