# Maintenance by Socket Mobile vs Easy Subtraction

Maintenance by Socket Mobile and Easy Subtraction 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 | Maintenance by Socket Mobile | Easy Subtraction |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/maintenance-by-socket-mobile/id1562749373/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | — |
| Monetization | Free | — |
| Size | 24 MB | 1 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Socket Mobile](https://appshunter.io/developer/456055935) | [Hideo Nose](https://appshunter.io/developer/1616288004) |

## What reviewers say

### Maintenance by Socket Mobile

[App page](https://appshunter.io/ios/app/maintenance-by-socket-mobile/id1562749373)

This utility app allows users to upgrade the firmware on Socket Mobile Bluetooth LE NFC readers and barcode scanners. It provides information on current and available firmware, device statistics, and configuration settings. Designed for advanced users, it facilitates essential maintenance for compatible hardware.

**Highlights:** Firmware upgrade, Display firmware information, Device statistics, Device configuration, Identify reader

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

**In-app purchases:** none


### Easy Subtraction

[App page](https://appshunter.io/ios/app/easy-subtraction/id6504454520)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Maintenance by Socket Mobile free?

Maintenance by Socket Mobile is free to download, with no in-app purchases.

### Is Easy Subtraction free?

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

### Do Maintenance by Socket Mobile or Easy Subtraction have ads?

Neither Maintenance by Socket Mobile nor Easy Subtraction 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.*