# Invoice Maker ▸ Invoice Simple vs Thinventory Konnect

The clearest difference is review sentiment: Invoice Maker ▸ Invoice Simple at 64% against Thinventory Konnect's 0%. Invoice Maker ▸ Invoice Simple also leads on rating (4.9 vs 3.0) and ratings volume (123K vs 2). Thinventory Konnect's advantage is in-app purchases (none vs 11). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Invoice Maker ▸ Invoice Simple sells 9 in-app purchases, starting at $6.99 per month. Thinventory Konnect asks for nothing beyond the download.

Invoice Maker ▸ Invoice Simple holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: Invoice Maker ▸ Invoice Simple has 123K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 64% of Invoice Maker ▸ Invoice Simple's written reviews are positive against 0% of Thinventory Konnect's.

Invoice Maker ▸ Invoice Simple ships an update every 9 days, Thinventory Konnect every 2 weeks. The most recent releases landed on September 28, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Invoice Maker ▸ Invoice Simple | Thinventory Konnect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (123K ratings)](https://appshunter.io/ios/app/invoice-maker-invoice-simple/id694831622/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/thinventory-konnect/id1098609227/reviews) |
| Number of ratings | **123K** | 2 |
| Positive reviews | **63.9% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#9** | — |
| Size | 209 MB | 38 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zenvoice Inc.](https://appshunter.io/developer/990870994) | [Thinventory Holdings Limited](https://appshunter.io/developer/1093787184) |

## What reviewers say

### Invoice Maker ▸ Invoice Simple

[App page](https://appshunter.io/ios/app/invoice-maker-invoice-simple/id694831622)

**Currently charting:** #9 Top Grossing · Business (US App Store)

Create and send professional invoices, estimates, and receipts quickly from your mobile device. This app helps individuals and growing businesses get organized, look professional, and get paid faster by accepting online payments.

**Highlights:** Create invoices, estimates, and receipts, Send documents via email, text, or WhatsApp, Accept online payments, Customize invoices with logo and business details, Track invoice status and get payment reminders, Organize client and product information

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Essentials Monthly | $6.99 | per month |
| Mobile subscription | $10.99 | per month |
| Monthly Side Business | $10.99 | per month |
| Monthly Business Sub | $11.99 | per month |
| Monthly Subscription | $11.99 | per month |
| Monthly subscription | $13.49 | per month |
| Plus Monthly | $14.99 | per month |
| Monthly Standard Subscription | $17.99 | per month |
| Premium Monthly | $21.99 | per month |

**What reviewers like**

- 🚀 Easy to use
- 👍 Professional-looking invoices
- 🚀 Quick and simple
- 👍 Saves time
- 👍 Convenient mobile access

**What reviewers complain about**

- 💰 Expensive subscription
- 🐛 Glitches and bugs
- 🔀 Inconsistent features across platforms
- 🔀 Confusing navigation
- 🔀 Limited customization options

**Reported bugs**

- Invoices not sending properly
- App crashing or freezing
- Inability to recover deleted invoices
- Syncing issues between mobile and desktop

**Requested features**

- Add ability to rearrange line items
- Improve search and filtering capabilities
- Integrate with accounting software
- Add option to track expenses and profitability
- Allow multiple business profiles in one account


### Thinventory Konnect

[App page](https://appshunter.io/ios/app/thinventory-konnect/id1098609227)

This app enables quick identification and access to smart storage boxes using Bluetooth technology. It allows users to view available boxes, unlock specific doors remotely, and track access via camera scanning, simplifying logistics and field operations.

**Highlights:** Identify and access smart boxes, Bluetooth-enabled keyless entry, View available box locations, Remotely unlock doors, Track access with camera scanning, Automatic door locking

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

**In-app purchases:** none


## Frequently asked questions

### Is Invoice Maker ▸ Invoice Simple free?

Invoice Maker ▸ Invoice Simple is free to download, with in-app purchases available.

### Is Thinventory Konnect free?

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

### Which has better reviews, Invoice Maker ▸ Invoice Simple or Thinventory Konnect?

Invoice Maker ▸ Invoice Simple is rated higher. Invoice Maker ▸ Invoice Simple averages 4.9 out of 5 from 123K ratings, while Thinventory Konnect averages 3.0 from 2 ratings.

### Do Invoice Maker ▸ Invoice Simple or Thinventory Konnect have ads?

Neither Invoice Maker ▸ Invoice Simple nor Thinventory Konnect shows ads.

### Which is updated more often, Invoice Maker ▸ Invoice Simple or Thinventory Konnect?

Invoice Maker ▸ Invoice Simple ships an update every 9 days, and Thinventory Konnect every 2 weeks. Most recently, Invoice Maker ▸ Invoice Simple was updated on September 28, 2026 and Thinventory Konnect on September 23, 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.*