# SubZen vs CostCurve

The clearest difference is iOS requirement: SubZen at 16.4 against CostCurve's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. SubZen sells 6 in-app purchases, starting at $0.99 per month and CostCurve sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | SubZen | CostCurve |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/subzen-subscription-tracker/id6759507520/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 65 MB | 11 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Michael Abou Khalil](https://appshunter.io/developer/1829498538) | [Ryan Tinklepaugh](https://appshunter.io/developer/1883444651) |

## What reviewers say

### SubZen

[App page](https://appshunter.io/ios/app/subzen-subscription-tracker/id6759507520)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SubZen Pro | $0.99 | per month |
| Support SubZen - Small | $1.99 | one-time |
| Support SubZen - Kind | $2.99 | one-time |
| Support SubZen - Generous | $5.99 | one-time |
| Support SubZen - Big | $10.99 | one-time |
| Support SubZen - Amazing | $19.99 | one-time |


### CostCurve

[App page](https://appshunter.io/ios/app/costcurve/id6761072942)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CostCurve Pro Monthly | $3.99 | per month |
| CostCurve Pro Annual | $29.99 | per year |


## Frequently asked questions

### Is SubZen free?

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

### Is CostCurve free?

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

### Do SubZen or CostCurve have ads?

Neither SubZen nor CostCurve shows ads.

### Which is updated more often, SubZen or CostCurve?

SubZen ships an update fortnightly, and CostCurve fortnightly. Most recently, SubZen was updated on October 24, 2026 and CostCurve on October 8, 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.*