# Dosatron vs E

The clearest difference is rating: E at 5.0 against Dosatron's 3.5. E also leads on iOS requirement (10.3 vs 14.0). Dosatron's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, 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.

E holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: Dosatron has 17 ratings behind it against 2, so its average is the more settled of the two.

Dosatron ships an update every 2 months, E every 4 months. The most recent releases landed on June 1, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Dosatron | E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (17 ratings)](https://appshunter.io/ios/app/dosatron-dosing-calculator/id795027401/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/e-diagnostic/id1387730960/reviews)** |
| Number of ratings | **17** | 2 |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | **Free** | Ad-supported |
| Size | 159 MB | 42 MB |
| Requires iOS | 14.0 | **10.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Dosatron International S.A.S](https://appshunter.io/developer/795027404) | [333 Corporate 1998, S.L.](https://appshunter.io/developer/601314449) |

## What reviewers say

### Dosatron

[App page](https://appshunter.io/ios/app/dosatron-dosing-calculator/id795027401)

This application helps users manage their water-powered dosing pumps. It provides quick access to pump support information, environmental adjustments, and service contact details. Users can also scan pump QR codes for technical documentation and stay updated on news and product developments.

**Highlights:** Pump support information, Environmental adjustment guidance, Service and support contact, QR code scanning for documentation, News and product updates

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-diagnostic/id1387730960)

This diagnostic tool helps identify potential swine diseases based on observed symptoms and animal age. It provides detailed descriptions and images of conditions, acting as an illustrative guide for users registered on pig333.com.

**Highlights:** Swine disease and condition descriptions, Images of major swine diseases, Symptom-based diagnosis, Age-specific disease lists, Detailed disease information, Multilingual support (English, Spanish)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dosatron free?

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

### Is E free?

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

### Which has better reviews, Dosatron or E?

E is rated higher. Dosatron averages 3.5 out of 5 from 17 ratings, while E averages 5.0 from 2 ratings.

### Do Dosatron or E have ads?

E shows ads; Dosatron does not.

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

Dosatron ships an update every 2 months, and E every 4 months. Most recently, Dosatron was updated on June 1, 2026 and E on September 6, 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.*