# Graph Maker vs Cat Lock

The clearest difference is update cadence: Cat Lock at every 2 days against Graph Maker's every 9 days. Graph Maker's advantage is iOS requirement (15.1 vs 17.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Graph Maker sells 1 one-off in-app purchase and Cat Lock sells 2 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Graph Maker ships an update every 9 days, Cat Lock every 2 days. The most recent releases landed on September 24, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Graph Maker | Cat Lock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/graph-maker-create-a-graph/id6737179326/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 2 days** |
| Monetization | Free | — |
| Size | 50 MB | 168 MB |
| Requires iOS | **15.1** | 17.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [naoki otsu](https://appshunter.io/developer/1082476153) | [ChelsKat LLC](https://appshunter.io/developer/1896281331) |

## What reviewers say

### Graph Maker

[App page](https://appshunter.io/ios/app/graph-maker-create-a-graph/id6737179326)

Instantly transform your data into beautiful, sophisticated graphs with this intuitive app. Manage unlimited tabs, receive timely notifications, and secure your data with biometric authentication. Export your graphs and data in CSV format for further analysis.

**Highlights:** Intuitive graph creation from numbers, Unlimited tabs for data management, Notification function for reminders, Biometric security (Face ID/Touch ID), CSV export functionality, Offline functionality, Theme color customization

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Edition | $4.99 | one-time |


### Cat Lock

[App page](https://appshunter.io/ios/app/cat-lock-screen-time-control/id6772551745)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $9.99 | per 7 days |
| Cat Lock Pro Yearly | $49.99 | per year |


## Frequently asked questions

### Is Graph Maker free?

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

### Is Cat Lock free?

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

### Do Graph Maker or Cat Lock have ads?

Neither Graph Maker nor Cat Lock shows ads.

### Which is updated more often, Graph Maker or Cat Lock?

Graph Maker ships an update every 9 days, and Cat Lock every 2 days. Most recently, Graph Maker was updated on September 24, 2026 and Cat Lock on September 20, 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.*