CIDR Calc vs VMTools VMSHELL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CIDR Calc
Calculate subnet details, including IP addresses, masks, and reverse masks, using CIDR notation. Generate and share lists of subnets and hosts within the next higher octet. This tool simplifies network calculations for IT professionals and students.
- Subnet calculation
- IP address display
- Mask and reverse mask
- Shareable subnet lists
- Host calculation
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Displays subnet, IP addresses, mask, and reverse mask based on IP and CIDR notation. Generates shareable list of all subnets and hosts in next higher octet.
VMTools VMSHELL
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VMTools is a free mobile utility app by VMSHELL INC. It provides a modern workspace for compatible smart-card readers, Bluetooth tools, and local-first eSIM profile operations. VMTools is a modern utility workspace from VMSHELL INC for managing compatible smart-card readers, Bluetooth tools, CCID devices, and local eSIM-related workflows. The app provides a clean interface for scanning supported devices, checking reader status, organizing utility workflows, and accessing backup, collection, Bluetooth, VmShell, and settings tools. VMTools is free to use, does not require login, and does not include subscriptions or in-app purchases. The app is designed for practical device workflows: scan and connect supported tools, review local device status, manage profile-oriented tasks, and keep utility operations simple without requiring an account or paid subscription. VMTools does not require login and is provided as a free utility.
Screenshots
Verdict
CIDR Calc and VMTools VMSHELL 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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | CIDR Calc | VMTools VMSHELL |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 19 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Vision Pro — better | iPhone, iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 1 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Paul Smicker | VMSHELL INC |
In-app purchases
CIDR Calc
No in-app purchases
VMTools VMSHELL
No in-app purchases
Questions
Is CIDR Calc free?
Is VMTools VMSHELL free?
Do CIDR Calc or VMTools VMSHELL have ads?
Other comparisons
