# e vs Soil Sampler.

The clearest difference is rating: Soil Sampler. at 5.0 against e's 3.0. e's advantage is in-app purchases (none vs 1) and iOS requirement (6.1 vs 13.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Soil Sampler. sells 1 one-off in-app purchase. e asks for nothing beyond the download.

Soil Sampler. holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

e ships an update every 5 months, Soil Sampler. every 4 months. The most recent releases landed on October 5, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | e | Soil Sampler. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/e-calcfree/id591591892/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/soil-sampler/id6758992938/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 7 MB | 55 MB |
| Requires iOS | **6.1** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [e-skett Corp.](https://appshunter.io/developer/591591895) | [Sachinbhai Surani](https://appshunter.io/developer/1838685550) |

## What reviewers say

### e

[App page](https://appshunter.io/ios/app/e-calcfree/id591591892)

This scientific calculator supports engineering notation with prefixes like pico, nano, and mega. It offers a history feature to review past calculations and allows editing of formulas for recalculation. The free version has some limitations on history scrolling and saving.

**Highlights:** Scientific notation support, Engineering multipliers (p, n, u, m, k, M), History of past calculations, Editable formulas for recalculation, Unit conversion for engineering prefixes

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

**In-app purchases:** none


### Soil Sampler.

[App page](https://appshunter.io/ios/app/soil-sampler/id6758992938)

This application simplifies soil sampling and data management for field professionals. It allows users to efficiently record, organize, and review soil sample details with a user-friendly interface. Improve accuracy and speed in soil investigations and agricultural work.

**Highlights:** Record soil sample details, Organize and manage sampling information, Easy data entry in the field, Clear and readable records, Share results, Lightweight design

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $12.99 | one-time |


## Frequently asked questions

### Is e free?

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

### Is Soil Sampler. free?

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

### Which has better reviews, e or Soil Sampler.?

Soil Sampler. is rated higher. e averages 3.0 out of 5 from 1 ratings, while Soil Sampler. averages 5.0 from 1 ratings.

### Do e or Soil Sampler. have ads?

Neither e nor Soil Sampler. shows ads.

### Which is updated more often, e or Soil Sampler.?

e ships an update every 5 months, and Soil Sampler. every 4 months. Most recently, e was updated on October 5, 2026 and Soil Sampler. on September 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*