# mon1500 vs Invoice Maker

The clearest difference is in-app purchases: mon1500 at none against Invoice Maker's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Invoice Maker sells 2 in-app purchases, starting at $19.00 per month. mon1500 asks for nothing beyond the download.

mon1500 ships an update every 2 months, Invoice Maker every 5 weeks. The most recent releases landed on October 25, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | mon1500 | Invoice Maker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 81 MB | 39 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [HqO Tex 13 LLC](https://appshunter.io/developer/1518546338) | [Caractiv Tech](https://appshunter.io/developer/1712980218) |

## What reviewers say

### mon1500

[App page](https://appshunter.io/ios/app/mon1500/id1518546340)

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


### Invoice Maker

[App page](https://appshunter.io/ios/app/invoice-maker-estimate-bill/id6756495015)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Membership Monthly | $19.00 | per month |
| Premium Membership Annually | $199.00 | per year |


## Frequently asked questions

### Is mon1500 free?

mon1500 is free to download, with no in-app purchases.

### Is Invoice Maker free?

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

### Do mon1500 or Invoice Maker have ads?

Neither mon1500 nor Invoice Maker shows ads.

### Which is updated more often, mon1500 or Invoice Maker?

mon1500 ships an update every 2 months, and Invoice Maker every 5 weeks. Most recently, mon1500 was updated on October 25, 2026 and Invoice Maker on October 17, 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.*