# SchBell vs Circuit Design

The clearest difference is in-app purchases: SchBell at none against Circuit Design's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Circuit Design sells 3 in-app purchases, starting at $7.99 per month. SchBell asks for nothing beyond the download.

SchBell ships an update every 5 months, Circuit Design every 2 months. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | SchBell | Circuit Design |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Size | 18 MB | 5 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tak Fai Chung](https://appshunter.io/developer/1868359972) | [Tu Anh Do](https://appshunter.io/developer/738947045) |

## What reviewers say

### SchBell

[App page](https://appshunter.io/ios/app/schbell/id6761602475)

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

**In-app purchases:** none


### Circuit Design

[App page](https://appshunter.io/ios/app/circuit-design/id6776538242)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Circuit Design Premium Monthly | $7.99 | per month |
| Circuit Design Premium Yearly | $29.99 | per year |
| Circuit Design Premium Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is SchBell free?

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

### Is Circuit Design free?

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

### Do SchBell or Circuit Design have ads?

Neither SchBell nor Circuit Design shows ads.

### Which is updated more often, SchBell or Circuit Design?

SchBell ships an update every 5 months, and Circuit Design every 2 months. Most recently, SchBell was updated on October 1, 2026 and Circuit Design on October 5, 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.*