# GAGE MetricS vs Invoice Pro Maker

The clearest difference is in-app purchases: GAGE MetricS at none against Invoice Pro Maker's 4. GAGE MetricS also leads on iOS requirement (11.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Invoice Pro Maker sells 4 in-app purchases, starting at $3.99 per 7 days. GAGE MetricS asks for nothing beyond the download.

GAGE MetricS ships an update every 9 months, Invoice Pro Maker every 7 months. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | GAGE MetricS | Invoice Pro Maker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 7 months** |
| Size | 42 MB | 71 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Systems Solutions Private Limited](https://appshunter.io/developer/1082658206) | [Vitalii Peregudov](https://appshunter.io/developer/1730810178) |

## What reviewers say

### GAGE MetricS

[App page](https://appshunter.io/ios/app/gage-metrics/id1601616561)

**Features:** macOS Compatibility

**In-app purchases:** none


### Invoice Pro Maker

[App page](https://appshunter.io/ios/app/invoice-pro-maker-pdf-billing/id6477842440)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Access(1 Week) | $3.99 | per 7 days |
| Pro Access(1 Month) | $4.99 | per month |
| Pro Access(6 Months) | $19.99 | per 6 months |
| Pro Access(1 Year) | $29.99 | per year |


## Frequently asked questions

### Is GAGE MetricS free?

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

### Is Invoice Pro Maker free?

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

### Do GAGE MetricS or Invoice Pro Maker have ads?

Neither GAGE MetricS nor Invoice Pro Maker shows ads.

### Which is updated more often, GAGE MetricS or Invoice Pro Maker?

GAGE MetricS ships an update every 9 months, and Invoice Pro Maker every 7 months. Most recently, GAGE MetricS was updated on November 7, 2026 and Invoice Pro Maker on November 4, 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.*