# SubZero vs Billing Case

The clearest difference is in-app purchases: Billing Case at none against SubZero's 2. Billing Case also leads on ads (none vs shown) and update cadence (every 4 days vs monthly). On price and device support there is nothing between them.

Both are free to download. SubZero sells 2 in-app purchases, starting at $4.99 per month. Billing Case asks for nothing beyond the download.

SubZero ships an update monthly, Billing Case every 4 days. The most recent releases landed on October 18, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | SubZero | Billing Case |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 4 days** |
| Size | 13 MB | 25 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [emirhan cifci](https://appshunter.io/developer/1837498715) | [Yuliia Aliekseienko](https://appshunter.io/developer/1896230779) |

## What reviewers say

### SubZero

[App page](https://appshunter.io/ios/app/subzero-subscription-tracker/id6760584552)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SubZero Pro Monthly | $4.99 | per month |
| SubZero Pro Yearly | $39.99 | per year |


### Billing Case

[App page](https://appshunter.io/ios/app/billing-case/id6766191524)

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

**In-app purchases:** none


## Frequently asked questions

### Is SubZero free?

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

### Is Billing Case free?

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

### Do SubZero or Billing Case have ads?

SubZero shows ads; Billing Case does not.

### Which is updated more often, SubZero or Billing Case?

SubZero ships an update monthly, and Billing Case every 4 days. Most recently, SubZero was updated on October 18, 2026 and Billing Case on October 10, 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.*