# Calc Cloud vs ZMG

The clearest difference is in-app purchases: ZMG at none against Calc Cloud's 1. Calc Cloud's advantage is update cadence (every 3 weeks vs every 4 months) and iOS requirement (12.3 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Calc Cloud sells 1 one-off in-app purchase. ZMG asks for nothing beyond the download.

Calc Cloud ships an update every 3 weeks, ZMG every 4 months. The most recent releases landed on August 26, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Calc Cloud | ZMG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (17 ratings)](https://appshunter.io/ios/app/calc-cloud/id560920444/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 72.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 26 MB | 6 MB |
| Requires iOS | **12.3** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | +4 | 17+ |
| Developer | [Richard Silverman](https://appshunter.io/developer/297096643) | [Pre-Approve Me LLC](https://appshunter.io/developer/653222522) |

## What reviewers say

### Calc Cloud

[App page](https://appshunter.io/ios/app/calc-cloud/id560920444)

This app stores and syncs your calculation histories across all your devices using cloud storage. It's useful for everyday calculations, invoicing, and tax preparation, with options to edit, comment, and export your tapes.

**Highlights:** Cloud sync across devices, Editable paper tape history, Export to PDF, Email, Dropbox, Invoicing and tax calculation, Comment on lines, Undo/Redo functionality

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Upgrade | $3.99 | one-time |


### ZMG

[App page](https://appshunter.io/ios/app/zmg/id6756086158)

**In-app purchases:** none


## Frequently asked questions

### Is Calc Cloud free?

Calc Cloud is free to download, with in-app purchases available.

### Is ZMG free?

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

### Do Calc Cloud or ZMG have ads?

Neither Calc Cloud nor ZMG shows ads.

### Which is updated more often, Calc Cloud or ZMG?

Calc Cloud ships an update every 3 weeks, and ZMG every 4 months. Most recently, Calc Cloud was updated on August 26, 2026 and ZMG on September 21, 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.*