# Disk Mounter Professional vs Graph Calc Plus

The clearest difference is update cadence: Disk Mounter Professional at monthly against Graph Calc Plus's every 39 months. Disk Mounter Professional also leads on price ($0.99 vs $2.99) and iOS requirement (11.0 vs 14.0). On ads, in-app purchases and device support there is nothing between them.

Disk Mounter Professional costs $0.99 and Graph Calc Plus $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Disk Mounter Professional ships an update monthly, Graph Calc Plus every 39 months. The most recent releases landed on September 19, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Disk Mounter Professional | Graph Calc Plus |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/disk-mounter-professional/id797168636/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 39 months |
| Monetization | Paid | — |
| Size | 41 MB | 1 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Certchip Corp](https://appshunter.io/developer/1652474819) | [Heng Jia Liang](https://appshunter.io/developer/1532000635) |

## What reviewers say

### Disk Mounter Professional

[App page](https://appshunter.io/ios/app/disk-mounter-professional/id797168636)

Transform your smartphone into a wireless removable disk for your Mac or PC. Easily share files, transmit data at high speeds, and secure important documents with advanced locking systems. Includes media conversion and editing tools.

**Highlights:** Wireless disk drive connection, High-speed data transmission, Secure file storage, MP3 and MP4 conversion, Photo and video editing, Secret folder with Touch ID lock, Music player and voice recorder

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

**In-app purchases:** none


### Graph Calc Plus

[App page](https://appshunter.io/ios/app/graph-calc-plus/id1612916130)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Disk Mounter Professional free?

Disk Mounter Professional costs $0.99, with no in-app purchases.

### Is Graph Calc Plus free?

Graph Calc Plus costs $2.99, with no in-app purchases.

### Do Disk Mounter Professional or Graph Calc Plus have ads?

Neither Disk Mounter Professional nor Graph Calc Plus shows ads.

### Which is updated more often, Disk Mounter Professional or Graph Calc Plus?

Disk Mounter Professional ships an update monthly, and Graph Calc Plus every 39 months. Most recently, Disk Mounter Professional was updated on September 19, 2026 and Graph Calc Plus on October 7, 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.*