# TheKeyPower vs InvoiceGo Simple Invoice Maker

The clearest difference is in-app purchases: TheKeyPower at none against InvoiceGo Simple Invoice Maker's 4. TheKeyPower also leads on ads (none vs shown). InvoiceGo Simple Invoice Maker's advantage is update cadence (daily vs every 10 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. InvoiceGo Simple Invoice Maker sells 4 in-app purchases, starting at $7.99 per 7 days. TheKeyPower asks for nothing beyond the download.

TheKeyPower ships an update every 10 months, InvoiceGo Simple Invoice Maker daily. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | TheKeyPower | InvoiceGo Simple Invoice Maker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.9 (7 ratings)](https://appshunter.io/ios/app/invoicego-simple-invoice-maker/id6644168072/reviews)** |
| Number of ratings | — | **7** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Daily** |
| Monetization | — | Free with in-app purchases |
| Size | 59 MB | 84 MB |
| Requires iOS | **15.5** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vipower Limited](https://appshunter.io/developer/1664423275) | [LOOP MOBILE FZCO](https://appshunter.io/developer/1741140077) |

## What reviewers say

### TheKeyPower

[App page](https://appshunter.io/ios/app/thekeypower/id1666522575)

**In-app purchases:** none


### InvoiceGo Simple Invoice Maker

[App page](https://appshunter.io/ios/app/invoicego-simple-invoice-maker/id6644168072)

Create professional invoices, estimates, and quotes with ease. Accept online payments, track expenses, and gain business insights. Sync across devices for seamless management.

**Highlights:** Professional invoice creation, Estimate and quote generation, Online payment acceptance, Expense and receipt tracking, Business reporting and insights, Client management, Cloud syncing across devices

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoice Maker Weekly | $7.99 | per 7 days |
| Invoice Simple | $8.99 | per 7 days |
| Invoice Maker | $19.99 | per month |
| Invoice Maker | $99.99 | per year |


## Frequently asked questions

### Is TheKeyPower free?

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

### Is InvoiceGo Simple Invoice Maker free?

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

### Do TheKeyPower or InvoiceGo Simple Invoice Maker have ads?

InvoiceGo Simple Invoice Maker shows ads; TheKeyPower does not.

### Which is updated more often, TheKeyPower or InvoiceGo Simple Invoice Maker?

TheKeyPower ships an update every 10 months, and InvoiceGo Simple Invoice Maker daily. Most recently, TheKeyPower was updated on October 25, 2026 and InvoiceGo Simple Invoice Maker on October 24, 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.*