# Hemocytometer Sidekick vs Preta de Fé

The clearest difference is in-app purchases: Preta de Fé at none against Hemocytometer Sidekick's 5. Preta de Fé also leads on update cadence (every 2 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Hemocytometer Sidekick sells 5 one-off in-app purchases. Preta de Fé asks for nothing beyond the download.

Hemocytometer Sidekick ships an update every 2 months, Preta de Fé every 2 days. The most recent releases landed on October 24, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Hemocytometer Sidekick | Preta de Fé |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (29 ratings)](https://appshunter.io/ios/app/hemocytometer-sidekick/id1341492266/reviews)** | — |
| Number of ratings | **29** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 43 MB | 8 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nicholas Bauer](https://appshunter.io/developer/1341492265) | [HOOMWEB Servicos de Internet LTDA.](https://appshunter.io/developer/836215792) |

## What reviewers say

### Hemocytometer Sidekick

[App page](https://appshunter.io/ios/app/hemocytometer-sidekick/id1341492266)

Streamline cell counting with a hemocytometer. This app automates calculations, offers eyes-free operation with large buttons and sound feedback, and saves your data for easy recording. It supports various chamber types and differential blood counts, making lab work more efficient.

**Highlights:** Automated cell counting, Eyes-free operation, Supports multiple chamber types, Differential blood counting, Data saving and email results, Adjustable chamber depth

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Purchase | $4.99 | one-time |
| Purchase Version 2 | $4.99 | one-time |
| Purchase Version 3 | $4.99 | one-time |
| Purchase Version 4 | $4.99 | one-time |
| Purchase Version 5 | $4.99 | one-time |


### Preta de Fé

[App page](https://appshunter.io/ios/app/preta-de-fe/id6783506747)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hemocytometer Sidekick free?

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

### Is Preta de Fé free?

Preta de Fé is free to download, with no in-app purchases.

### Do Hemocytometer Sidekick or Preta de Fé have ads?

Neither Hemocytometer Sidekick nor Preta de Fé shows ads.

### Which is updated more often, Hemocytometer Sidekick or Preta de Fé?

Hemocytometer Sidekick ships an update every 2 months, and Preta de Fé every 2 days. Most recently, Hemocytometer Sidekick was updated on October 24, 2026 and Preta de Fé on October 1, 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.*