# SolePredict vs E

The clearest difference is in-app purchases: E at none against SolePredict's 1. SolePredict's advantage is update cadence (every 4 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SolePredict sells 1 in-app purchase, starting at $3.99 per month. E asks for nothing beyond the download.

SolePredict ships an update every 4 days, E every 2 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SolePredict | E |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 months |
| Size | 64 MB | 47 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [SolePredict LLC](https://appshunter.io/developer/1779213603) | [Matthew Patrick](https://appshunter.io/developer/1880411034) |

## What reviewers say

### SolePredict

[App page](https://appshunter.io/ios/app/solepredict/id6738074121)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SolePredict Premium | $3.99 | per month |


### E

[App page](https://appshunter.io/ios/app/e-collar-mobile/id6761553065)

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

**In-app purchases:** none


## Frequently asked questions

### Is SolePredict free?

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

### Is E free?

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

### Do SolePredict or E have ads?

Neither SolePredict nor E shows ads.

### Which is updated more often, SolePredict or E?

SolePredict ships an update every 4 days, and E every 2 months. Most recently, SolePredict was updated on October 30, 2026 and E on October 24, 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.*