# Kalc vs Enviromates.earth

The clearest difference is update cadence: Kalc at every 9 days against Enviromates.earth's every 5 weeks. Kalc also leads on iOS requirement (13.4 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Kalc ships an update every 9 days, Enviromates.earth every 5 weeks. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Kalc | Enviromates.earth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/kalc/id610991936/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 96.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 5 weeks |
| Monetization | Free | — |
| Size | 24 MB | 94 MB |
| Requires iOS | **13.4** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [YUTA OKAJIMA](https://appshunter.io/developer/610991939) | [Yamu Ltd](https://appshunter.io/developer/1523677822) |

## What reviewers say

### Kalc

[App page](https://appshunter.io/ios/app/kalc/id610991936)

This utility app offers a unit converter, calculator, and world clock. Its user-friendly interface is designed for quick access to everyday calculations and conversions.

**Highlights:** Unit converter, Calculator, World clock, Simple UI, Quick results

**Features:** macOS Compatibility

**In-app purchases:** none


### Enviromates.earth

[App page](https://appshunter.io/ios/app/enviromatesearth/id1523677820)

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

**In-app purchases:** none


## Frequently asked questions

### Is Kalc free?

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

### Is Enviromates.earth free?

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

### Do Kalc or Enviromates.earth have ads?

Neither Kalc nor Enviromates.earth shows ads.

### Which is updated more often, Kalc or Enviromates.earth?

Kalc ships an update every 9 days, and Enviromates.earth every 5 weeks. Most recently, Kalc was updated on November 1, 2026 and Enviromates.earth on November 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.*