# sigmoid neuron vs MCAT Prep 2026

The clearest difference is in-app purchases: sigmoid neuron at none against MCAT Prep 2026's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. MCAT Prep 2026 sells 3 in-app purchases, starting at $14.99 per month. sigmoid neuron asks for nothing beyond the download.

## The numbers

| Metric | sigmoid neuron | MCAT Prep 2026 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 5 MB | 4 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [MD Shahariar Nazim Joy](https://appshunter.io/developer/1893961943) |

## What reviewers say

### sigmoid neuron

[App page](https://appshunter.io/ios/app/sigmoid-neuron/id6740157799)

**Features:** macOS Compatibility

**In-app purchases:** none


### MCAT Prep 2026

[App page](https://appshunter.io/ios/app/mcat-prep-2026-full-test/id6794339202)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Full Access | $14.99 | per month |
| Annual Full Access | $49.99 | per year |
| Lifetime Full Access | $79.99 | one-time |


## Frequently asked questions

### Is sigmoid neuron free?

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

### Is MCAT Prep 2026 free?

MCAT Prep 2026 is free to download, with in-app purchases available.

### Do sigmoid neuron or MCAT Prep 2026 have ads?

Neither sigmoid neuron nor MCAT Prep 2026 shows ads.

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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.*