# eTrust vs PROG_CALC

The clearest difference is device support: PROG_CALC at 4 against eTrust's —. eTrust's advantage is iOS requirement (9.0 vs 13). On price and in-app purchases there is nothing between them.

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

## The numbers

| Metric | eTrust | PROG_CALC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/prog-calc/id1640426491/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 2 weeks |
| Monetization | — | Free |
| Size | 29 MB | 78 MB |
| Requires iOS | **9.0** | 13 |
| Devices | — | **iPhone, iPad, iPod, Mac** |
| Age rating | 9+ | 4+ |
| Developer | [Beijing Venustech Cybervision Co., Ltd.](https://appshunter.io/developer/1277567338) | [嘉欣 胡](https://appshunter.io/developer/1640395440) |

## What reviewers say

### eTrust

[App page](https://appshunter.io/ios/app/etrust/id1633198619)

**In-app purchases:** none


### PROG_CALC

[App page](https://appshunter.io/ios/app/prog-calc/id1640426491)

This app offers a programmable calculator with two distinct modes for daily computing and advanced mathematical functions. It supports system conversions between binary, octal, decimal, and hexadecimal, and allows for variable storage and code sharing.

**Highlights:** Basic and advanced calculation modes, Syntax parser, Variable storage and editing, Binary, octal, decimal, hexadecimal conversion, Built-in code examples, Code sharing via QR code or file

**In-app purchases:** none


## Frequently asked questions

### Is eTrust free?

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

### Is PROG_CALC free?

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

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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.*