# DS trainer vs e

The clearest difference is update cadence: e at every 6 months against DS trainer's every 39 months. DS trainer's advantage is iOS requirement (11.0 vs 15.2). On price, ads, in-app purchases and device support there is nothing between them.

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

DS trainer ships an update every 39 months, e every 6 months. The most recent releases landed on September 14, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | DS trainer | e |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 6 months** |
| Size | 12 MB | 12 MB |
| Requires iOS | **11.0** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Elpidio Di Santo](https://appshunter.io/developer/1538560186) | [FONDAZIONE I.CO.N.A. ITALIAN COHORT OF ANTIRETROVIRAL NAIVE PATIENTS](https://appshunter.io/developer/1589481156) |

## What reviewers say

### DS trainer

[App page](https://appshunter.io/ios/app/ds-trainer/id1538560184)

**Features:** macOS Compatibility

**In-app purchases:** none


### e

[App page](https://appshunter.io/ios/app/e-qol/id1589480944)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DS trainer free?

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

### Is e free?

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

### Do DS trainer or e have ads?

Neither DS trainer nor e shows ads.

### Which is updated more often, DS trainer or e?

DS trainer ships an update every 39 months, and e every 6 months. Most recently, DS trainer was updated on September 14, 2026 and e on September 10, 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.*