# Summarum vs SubZero

The clearest difference is ads: Summarum at none against SubZero's shown. Summarum also leads on update cadence (every 9 days vs monthly). SubZero's advantage is iOS requirement (17.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Summarum ships an update every 9 days, SubZero monthly. The most recent releases landed on September 9, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Summarum | SubZero |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Monthly |
| Size | 1 MB | 13 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Till Gartner](https://appshunter.io/developer/1282893910) | [emirhan cifci](https://appshunter.io/developer/1837498715) |

## What reviewers say

### Summarum

[App page](https://appshunter.io/ios/app/summarum/id6756500920)

**Features:** macOS Compatibility

**In-app purchases:** none


### SubZero

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Summarum free?

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

### Is SubZero free?

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

### Do Summarum or SubZero have ads?

SubZero shows ads; Summarum does not.

### Which is updated more often, Summarum or SubZero?

Summarum ships an update every 9 days, and SubZero monthly. Most recently, Summarum was updated on September 9, 2026 and SubZero on September 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.*