# ZIG SIM vs Fologram

The clearest difference is in-app purchases: ZIG SIM at none against Fologram's 1. ZIG SIM also leads on review sentiment (88% vs 60%) and update cadence (every 9 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Fologram sells 1 in-app purchase, starting at $19.99 per month. ZIG SIM asks for nothing beyond the download.

ZIG SIM ships an update every 9 days, Fologram every 3 weeks. The most recent releases landed on October 26, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | ZIG SIM | Fologram |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/zig-sim/id1112909974/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | **87.5% of reviews** | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | **Free** | Freemium |
| Size | 4 MB | 127 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [1-10, INC.](https://appshunter.io/developer/1447864635) | [Fologram](https://appshunter.io/developer/1445114983) |

## What reviewers say

### ZIG SIM

[App page](https://appshunter.io/ios/app/zig-sim/id1112909974)

This app allows physical prototyping by sending smartphone sensor data to other devices via UDP socket communication. It enables verification of wearable devices and IoT without electronic kits. Supports various sensors and communication protocols.

**Highlights:** Smartphone sensor data transmission, UDP socket communication, Wearable device verification, IoT prototyping, Supports OSC and JSON messaging, Adjustable communication rates (1-60 FPS)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fologram

[App page](https://appshunter.io/ios/app/fologram/id1445114984)

Stream 3D models from Rhino and Grasshopper to your mobile device for AR viewing, interactive design, and fabrication. Build custom mixed reality applications and present designs at scale.

**Highlights:** Stream Rhino and Grasshopper models to iPhone/iPad, View models in augmented reality at scale, Real-time interactivity with geometry and properties, Build mixed reality applications with Grasshopper, High precision AR for fabrication, Remote model access over the internet, Presentations and exhibitions in AR

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $19.99 | per month |


## Frequently asked questions

### Is ZIG SIM free?

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

### Is Fologram free?

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

### Do ZIG SIM or Fologram have ads?

Neither ZIG SIM nor Fologram shows ads.

### Which is updated more often, ZIG SIM or Fologram?

ZIG SIM ships an update every 9 days, and Fologram every 3 weeks. Most recently, ZIG SIM was updated on October 26, 2026 and Fologram on October 16, 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.*