# IsiChat vs SpoolFlux

IsiChat and SpoolFlux are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | IsiChat | SpoolFlux |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/spoolflux/id6757957454/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | — | Free |
| Size | 61 MB | 7 MB |
| Requires iOS | **17.6** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Klaus Gutsch](https://appshunter.io/developer/1525467984) | [Reimar Metzen](https://appshunter.io/developer/1453724835) |

## What reviewers say

### IsiChat

[App page](https://appshunter.io/ios/app/isichat/id6753902574)

**Features:** macOS Compatibility

**In-app purchases:** none


### SpoolFlux

[App page](https://appshunter.io/ios/app/spoolflux/id6757957454)

Manage NFC tags for 3D printer filament spools with support for various formats like OpenSpool and TigerTag. Features automatic color detection, temperature presets, and a comprehensive filament library. Integrates with the OpenFilament Database.

**Highlights:** Read/write multiple NFC tag formats, Automatic color detection via TD1 device, Customizable temperature presets, Extensive filament and material library, Support for multicolor filaments, Import from OpenFilament Database, Save, load, and export filament data

**In-app purchases:** none


## Frequently asked questions

### Is IsiChat free?

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

### Is SpoolFlux free?

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

### Do IsiChat or SpoolFlux have ads?

Neither IsiChat nor SpoolFlux shows ads.

### Which is updated more often, IsiChat or SpoolFlux?

IsiChat ships an update weekly, and SpoolFlux weekly. Most recently, IsiChat was updated on November 9, 2026 and SpoolFlux on November 5, 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.*