# Invoice Maker vs Dgtera Flex

The clearest difference is in-app purchases: Dgtera Flex at none against Invoice Maker's 3. Dgtera Flex also leads on iOS requirement (13.0 vs 17.0). Invoice Maker's advantage is update cadence (every 6 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Invoice Maker sells 3 in-app purchases, starting at $2.99 per 7 days. Dgtera Flex asks for nothing beyond the download.

Invoice Maker ships an update every 6 weeks, Dgtera Flex every 3 months. The most recent releases landed on September 26, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Invoice Maker | Dgtera Flex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Size | 21 MB | 23 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kelvin Kioko](https://appshunter.io/developer/1757816326) | [INTEGRATED SOLUTIONS COMPANY FOR INFORMATION TECHNOLOGY](https://appshunter.io/developer/1481400865) |

## What reviewers say

### Invoice Maker

[App page](https://appshunter.io/ios/app/invoice-maker-invoicepay/id6550913455)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Monthly Invoice Maker | $14.99 | per month |
| Annual | $24.99 | per year |


### Dgtera Flex

[App page](https://appshunter.io/ios/app/dgtera-flex-cds/id6747587720)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Invoice Maker free?

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

### Is Dgtera Flex free?

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

### Do Invoice Maker or Dgtera Flex have ads?

Neither Invoice Maker nor Dgtera Flex shows ads.

### Which is updated more often, Invoice Maker or Dgtera Flex?

Invoice Maker ships an update every 6 weeks, and Dgtera Flex every 3 months. Most recently, Invoice Maker was updated on September 26, 2026 and Dgtera Flex on October 1, 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.*