# Amplify+® vs e

Amplify+® and e are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Amplify+® | e |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Size | 105 MB | 20 MB |
| Requires iOS | 15.6 | **15.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Prescribe Digital](https://appshunter.io/developer/1479399263) | [International Neuromodulation Society](https://appshunter.io/developer/1460231904) |

## What reviewers say

### Amplify+®

[App page](https://appshunter.io/ios/app/amplify-plus/id6478752615)

**In-app purchases:** none


### e

[App page](https://appshunter.io/ios/app/e-ins-2025/id6745224505)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Amplify+® free?

Amplify+® is free to download, with no in-app purchases.

### Is e free?

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

### Do Amplify+® or e have ads?

Neither Amplify+® nor e shows ads.

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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.*