# Sky Systemz vs UniqInvoice

The clearest difference is in-app purchases: Sky Systemz at none against UniqInvoice's 3. Sky Systemz also leads on ratings volume (337 vs 2) and device support (3 vs 1). UniqInvoice's advantage is rating (5.0 vs 4.7). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. UniqInvoice sells 3 in-app purchases, starting at $3.99 per 7 days. Sky Systemz asks for nothing beyond the download.

UniqInvoice holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Sky Systemz has 337 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 97% of Sky Systemz's written reviews are positive against 100% of UniqInvoice's.

Sky Systemz ships an update every 6 weeks, UniqInvoice every 5 weeks. The most recent releases landed on October 25, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Sky Systemz | UniqInvoice |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (337 ratings)](https://appshunter.io/ios/app/sky-systemz/id1439602320/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/uniqinvoice-invoice-maker/id6689492412/reviews)** |
| Number of ratings | **337** | 2 |
| Positive reviews | 97.1% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 108 MB | 43 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ODP Solutions, Inc](https://appshunter.io/developer/1439602319) | [AVACONN LLC](https://appshunter.io/developer/1534446656) |

## What reviewers say

### Sky Systemz

[App page](https://appshunter.io/ios/app/sky-systemz/id1439602320)

This app provides a comprehensive suite of tools for businesses to manage sales, inventory, customers, and staff. It allows for seamless payment processing, invoice creation, and real-time sales analytics. Businesses can also build a free custom online store and receive next-day funding.

**Highlights:** Cloud-based Point-of-Sale (POS), Payment processing, Invoice creation and sending, Customer and staff management, Inventory management, Sales dashboard and analytics, Free custom online store

**In-app purchases:** none

**What reviewers like**

- 👨‍💼 Exceptional customer service and support team
- 🚀 Fast and easy payment processing
- 💰 Low transaction fees and cost savings
- 🔒 Secure payment transactions
- 📱 User-friendly and intuitive interface

**What reviewers complain about**

- 🐛 Cash transaction recording issues
- 🐛 Check number input functionality missing
- 🐛 Receipt customization limitations
- ⚠️ Some unresolved bugs affecting usability
- ❓ Occasional user confusion (some user error)

**Reported bugs**

- Cash transactions won't record properly
- No check number input option available
- Receipt formatting cannot be customized as desired
- Various bugs preventing regular use despite available features

**Requested features**

- Check number field option for check payments
- Enhanced receipt customization options
- Improved cash transaction handling


### UniqInvoice

[App page](https://appshunter.io/ios/app/uniqinvoice-invoice-maker/id6689492412)

Create professional invoices and estimates quickly, track income and expenses, and get paid faster with secure online payments. Automate recurring billing and reminders, and gain clear financial insights with detailed reports. Enjoy a user-friendly interface with Dark Mode.

**Highlights:** Create professional invoices and estimates, Secure online payments, Track income and expenses, Multi-currency support, Automate recurring billing, Detailed financial reports, Dark Mode interface

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access | $3.99 | per 7 days |
| Unlimited access | $9.99 | per month |
| Unlimited access | $99.99 | per year |


## Frequently asked questions

### Is Sky Systemz free?

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

### Is UniqInvoice free?

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

### Which has better reviews, Sky Systemz or UniqInvoice?

UniqInvoice is rated higher. Sky Systemz averages 4.7 out of 5 from 337 ratings, while UniqInvoice averages 5.0 from 2 ratings.

### Do Sky Systemz or UniqInvoice have ads?

Neither Sky Systemz nor UniqInvoice shows ads.

### Which is updated more often, Sky Systemz or UniqInvoice?

Sky Systemz ships an update every 6 weeks, and UniqInvoice every 5 weeks. Most recently, Sky Systemz was updated on October 25, 2026 and UniqInvoice on October 9, 2026.

---

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