# Meshtastic vs K.O. II Calc.

The clearest difference is in-app purchases: Meshtastic at none against K.O. II Calc.'s 2. Meshtastic also leads on update cadence (weekly vs monthly) and device support (5 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. K.O. II Calc. sells 2 one-off in-app purchases. Meshtastic asks for nothing beyond the download.

Meshtastic ships an update weekly, K.O. II Calc. monthly. The most recent releases landed on November 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Meshtastic | K.O. II Calc. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (846 ratings)](https://appshunter.io/ios/app/meshtastic/id1586432531/reviews)** | — |
| Number of ratings | **846** | — |
| Positive reviews | 44.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free | — |
| Size | 147 MB | 1 MB |
| Requires iOS | **17.5** | 18.6 |
| Devices | **iPhone, iPad, Mac, Apple TV, Apple Watch** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Meshtastic LLC](https://appshunter.io/developer/1586432533) | [Jesus Evert Corral Pedraza](https://appshunter.io/developer/1777466218) |

## What reviewers say

### Meshtastic

[App page](https://appshunter.io/ios/app/meshtastic/id1586432531)

This app enables off-grid, decentralized text messaging using low-power LoRa radios. It creates a mesh network for communication in areas lacking cellular or WiFi service. The open-source platform is designed for reliable, decentralized connectivity.

**Highlights:** Off-grid communication, Decentralized mesh network, LoRa radio integration, Text messaging, Open source platform, Low-power operation

**Features:** Siri integration, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Well-made app
- 🚀 Polished and intuitive interface
- 🚀 Powerful features for off-grid communication
- 👍 Great community and responsive developers
- 👍 Continuously improving with updates

**What reviewers complain about**

- 🐛 Bluetooth connectivity issues
- 🐛 Unreliable messaging and node connections
- 🐛 Crashes and stability problems
- 🔋 High battery consumption
- 👎 Lacking feature parity with Android version

**Reported bugs**

- Canned messages configuration issues
- Location sharing and traceroute functions not working
- Settings screen bugs and crashes
- Inconsistent behavior when switching between devices

**Requested features**

- Offline maps support
- Ability to customize notifications
- More sorting and filtering options for nodes
- Apple Watch and Shortcuts integration
- Improved documentation and user guidance


### K.O. II Calc.

[App page](https://appshunter.io/ios/app/ko-ii-calc/id6752974851)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Espresso coffee | $1.99 | one-time |
| Cappuccino coffee | $2.99 | one-time |


## Frequently asked questions

### Is Meshtastic free?

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

### Is K.O. II Calc. free?

K.O. II Calc. is free to download, with in-app purchases available.

### Do Meshtastic or K.O. II Calc. have ads?

Neither Meshtastic nor K.O. II Calc. shows ads.

### Which is updated more often, Meshtastic or K.O. II Calc.?

Meshtastic ships an update weekly, and K.O. II Calc. monthly. Most recently, Meshtastic was updated on November 7, 2026 and K.O. II Calc. on October 14, 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.*