# Shuttle Tracker vs E2A

The clearest difference is in-app purchases: Shuttle Tracker at none against E2A's 10. E2A's advantage is update cadence (every 2 days vs every 3 weeks) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. E2A sells 10 one-off in-app purchases. Shuttle Tracker asks for nothing beyond the download.

Shuttle Tracker ships an update every 3 weeks, E2A every 2 days. The most recent releases landed on September 23, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Shuttle Tracker | E2A |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 0 MB | 44 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Southeast Missouri State University](https://appshunter.io/developer/692273087) | [Avishek Adhikari](https://appshunter.io/developer/1871148701) |

## What reviewers say

### Shuttle Tracker

[App page](https://appshunter.io/ios/app/shuttle-tracker-semo/id6698893596)

**Features:** macOS Compatibility

**In-app purchases:** none


### E2A

[App page](https://appshunter.io/ios/app/e2a/id6758146267)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A2 Mathematics - 30 Days | $19.99 | one-time |
| A2 Chemistry - 30 Days | $19.99 | one-time |
| AS Business - 30 Days | $19.99 | one-time |
| AS Economics - 30 Days | $19.99 | one-time |
| AS Computer Science - 30 Days | $19.99 | one-time |
| AS Physics - 30 Days | $19.99 | one-time |
| AS Chemistry - 30 Days | $19.99 | one-time |
| AS Biology - 30 Days | $19.99 | one-time |
| AS Accounts - 30 Days | $19.99 | one-time |
| A2 Computer Science - 30 Days | $19.99 | one-time |


## Frequently asked questions

### Is Shuttle Tracker free?

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

### Is E2A free?

E2A is free to download, with in-app purchases available.

### Do Shuttle Tracker or E2A have ads?

Neither Shuttle Tracker nor E2A shows ads.

### Which is updated more often, Shuttle Tracker or E2A?

Shuttle Tracker ships an update every 3 weeks, and E2A every 2 days. Most recently, Shuttle Tracker was updated on September 23, 2026 and E2A on October 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.*