# BatteryTrak vs Invoice Maker

The clearest difference is in-app purchases: BatteryTrak at none against Invoice Maker's 4. Invoice Maker's advantage is update cadence (daily vs every 16 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Invoice Maker sells 4 in-app purchases, starting at $6.99 per 7 days. BatteryTrak asks for nothing beyond the download.

BatteryTrak ships an update every 16 months, Invoice Maker daily. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | BatteryTrak | Invoice Maker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Daily** |
| Size | 4 MB | 59 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Code Corp](https://appshunter.io/developer/719839452) | [HRHELPERG LLC](https://appshunter.io/developer/1801209694) |

## What reviewers say

### BatteryTrak

[App page](https://appshunter.io/ios/app/batterytrak/id1475832967)

**In-app purchases:** none


### Invoice Maker

[App page](https://appshunter.io/ios/app/invoice-maker-easy-creation/id6747311276)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock PRO - Weekly access | $6.99 | per 7 days |
| Unlock PRO - Monthly access | $14.99 | per month |
| Create Estimates & Invoice - Annual | $49.99 | per year |
| Unlock Pro - Yearly access | $69.99 | per year |


## Frequently asked questions

### Is BatteryTrak free?

BatteryTrak 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 BatteryTrak or Invoice Maker have ads?

Neither BatteryTrak nor Invoice Maker shows ads.

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

BatteryTrak ships an update every 16 months, and Invoice Maker daily. Most recently, BatteryTrak was updated on October 29, 2026 and 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.*