# Proactivanet ITSM Software vs Calculator C

The clearest difference is in-app purchases: Proactivanet ITSM Software at none against Calculator C's 1. Proactivanet ITSM Software also leads on ads (none vs shown) and iOS requirement (12.0 vs 17). Calculator C's advantage is update cadence (every 3 weeks vs every 6 months). On price and device support there is nothing between them.

Both are free to download. Calculator C sells 1 one-off in-app purchase. Proactivanet ITSM Software asks for nothing beyond the download.

Proactivanet ITSM Software ships an update every 6 months, Calculator C every 3 weeks. Both last shipped on November 2, 2026.

## The numbers

| Metric | Proactivanet ITSM Software | Calculator C |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (44 ratings)](https://appshunter.io/ios/app/calculator-c-auto-sum-history/id1174687792/reviews)** |
| Number of ratings | — | **44** |
| Positive reviews | — | 76.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 71 MB | 23 MB |
| Requires iOS | **12.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Espiral Microsistemas S.L.](https://appshunter.io/developer/975179247) | [DIGITALNAUTS INC.](https://appshunter.io/developer/1083829093) |

## What reviewers say

### Proactivanet ITSM Software

[App page](https://appshunter.io/ios/app/proactivanet-itsm-software/id1123593113)

**In-app purchases:** none


### Calculator C

[App page](https://appshunter.io/ios/app/calculator-c-auto-sum-history/id1174687792)

This utility app offers a calculator with advanced features like formula history, automatic totals, and customizable button placement for one-handed use. Easily reuse past calculations, copy results, and share your work.

**Highlights:** Adjustable button positions, Formula and history display, Automatic calculation aggregation, Share calculation results, Clipboard copy, Reuse history entries

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $3.99 | one-time |


## Frequently asked questions

### Is Proactivanet ITSM Software free?

Proactivanet ITSM Software is free to download, with no in-app purchases.

### Is Calculator C free?

Calculator C is free to download, with in-app purchases available.

### Do Proactivanet ITSM Software or Calculator C have ads?

Calculator C shows ads; Proactivanet ITSM Software does not.

### Which is updated more often, Proactivanet ITSM Software or Calculator C?

Proactivanet ITSM Software ships an update every 6 months, and Calculator C every 3 weeks. Most recently, Proactivanet ITSM Software was updated on November 2, 2026 and Calculator C on November 2, 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.*