# Sader Method vs Hemocytometer Sidekick

The clearest difference is review sentiment: Sader Method at 100% against Hemocytometer Sidekick's 0%. Sader Method also leads on in-app purchases (none vs 5) and rating (5.0 vs 4.6). Hemocytometer Sidekick's advantage is update cadence (every 2 months vs every 57 months) and ratings volume (29 vs 1). 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. Sader Method asks for nothing beyond the download.

Sader Method holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Hemocytometer Sidekick has 29 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Sader Method's written reviews are positive against 0% of Hemocytometer Sidekick's.

Sader Method ships an update every 57 months, Hemocytometer Sidekick every 2 months. The most recent releases landed on September 17, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Sader Method | Hemocytometer Sidekick |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sader-method/id402544930/reviews)** | [4.6 (29 ratings)](https://appshunter.io/ios/app/hemocytometer-sidekick/id1341492266/reviews) |
| Number of ratings | 1 | **29** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 57 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 43 MB |
| Requires iOS | 15.4 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [John Sader](https://appshunter.io/developer/402544933) | [Nicholas Bauer](https://appshunter.io/developer/1341492265) |

## What reviewers say

### Sader Method

[App page](https://appshunter.io/ios/app/sader-method/id402544930)

This utility app helps calibrate Atomic Force Microscope cantilevers. It provides a user interface to determine the spring constant of a cantilever using its resonant frequency and quality factor.

**Highlights:** Atomic Force Microscope cantilever calibration, Determine spring constant, Resonant frequency measurement, Quality factor measurement, User interface for calibration

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Sader Method free?

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

### Is Hemocytometer Sidekick free?

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

### Which has better reviews, Sader Method or Hemocytometer Sidekick?

Sader Method is rated higher. Sader Method averages 5.0 out of 5 from 1 ratings, while Hemocytometer Sidekick averages 4.6 from 29 ratings.

### Do Sader Method or Hemocytometer Sidekick have ads?

Neither Sader Method nor Hemocytometer Sidekick shows ads.

### Which is updated more often, Sader Method or Hemocytometer Sidekick?

Sader Method ships an update every 57 months, and Hemocytometer Sidekick every 2 months. Most recently, Sader Method was updated on September 17, 2026 and Hemocytometer Sidekick on October 7, 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.*