# Unical Ufly vs InvoiceX

The clearest difference is in-app purchases: Unical Ufly at none against InvoiceX's 2. InvoiceX's advantage is update cadence (every 6 months vs every 18 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. InvoiceX sells 2 in-app purchases, starting at $6.99 per 7 days. Unical Ufly asks for nothing beyond the download.

Unical Ufly ships an update every 18 months, InvoiceX every 6 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Unical Ufly | InvoiceX |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 11.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 10 MB | 40 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DigiBrain](https://appshunter.io/developer/1124086004) | [Ivan Spyrydonov](https://appshunter.io/developer/1789357255) |

## What reviewers say

### Unical Ufly

[App page](https://appshunter.io/ios/app/unical-ufly/id1124086005)

Control your Unical heating system remotely via smartphone or tablet. Program daily and weekly schedules for heating and hot water, monitor boiler status, and receive push notifications for system errors. Supports multiple profiles for different homes.

**Highlights:** Remote heating system control, Daily and weekly programming, Domestic hot water scheduling, Boiler status monitoring, Solar system control, Error history and system reset, Push notifications for system issues

**Features:** macOS Compatibility

**In-app purchases:** none


### InvoiceX

[App page](https://appshunter.io/ios/app/invoicex-invoice-generator/id6751202548)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| InvoiceX Weekly Subscription | $6.99 | per 7 days |
| InvoiceX Yearly Subscription | $29.99 | per year |


## Frequently asked questions

### Is Unical Ufly free?

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

### Is InvoiceX free?

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

### Do Unical Ufly or InvoiceX have ads?

Neither Unical Ufly nor InvoiceX shows ads.

### Which is updated more often, Unical Ufly or InvoiceX?

Unical Ufly ships an update every 18 months, and InvoiceX every 6 months. Most recently, Unical Ufly was updated on October 29, 2026 and InvoiceX on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*