Sader Method vs Hemocytometer Sidekick
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sader Method
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.
- Atomic Force Microscope cantilever calibration
- Determine spring constant
- Resonant frequency measurement
- Quality factor measurement
- User interface for calibration
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Calibrate Atomic Force Microscope cantilevers using the Sader Method. Provides a user interface for determining the spring constant of a cantilever from measurements of its resonant frequency and quality factor.
Hemocytometer Sidekick
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.
- Automated cell counting
- Eyes-free operation
- Supports multiple chamber types
- Differential blood counting
- Data saving and email results
- Adjustable chamber depth
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Make cell counting with a hemocytometer effortless! You know the drill--time to count cells for your experiment. Get out the hemocytometer and squeaky mechanical counter, prepare your dilution, fill the chamber, then look under the scope and start pushing the lever. Get to the end of a square, write down the count, reset the counter, and repeat. Finally, try to remember the right calculation, then write down the result. What if you didn't need the squeaky counter? The scrap paper? A manual calculator? Sure, you *could* get an expensive, fancy cell counter with wasteful disposables. But why do that when a $5 app is nearly as good? Hemocytometer Sidekick eliminates those annoyances. Record one or two counters for all samples with automatic calculations (including viability, blood counter), and use the full grid or the center square. Data is saved for you, so you can record it in your notebook at your convenience. Hemocytometer Sidekick, designed from the ground up by a biologist, will make your life in the lab so much easier, that I'm giving you 10 measurements for free! Features: - Optimized for eyes-free operation (large buttons, sounds, vibration) - Use both chambers and zoom in to inner grid - Chamber types: Basic, Improved Neubauer, Bürker-Türk/Thoma, Fuchs-Rosenthal, Jessen, Spiers-Levy, Malassez, Makler - One or two counters available, plus viability and blood (RBC, WBC, Platelet) counter - Differential blood counter for many white blood cell types - Pause and sound every 100 blood cells counted - Automatic calculations - Adjustable chamber depth - Email results - Prompt support
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Sader Method | Hemocytometer Sidekick |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.6 (29 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 1 | 29 — better |
| Update frequency | Every 57 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | John Sader | Nicholas Bauer |
Customer experience
Sader Method
Hemocytometer Sidekick
In-app purchases
Sader Method
No in-app purchases
Hemocytometer Sidekick
- Purchase$4.99
- Purchase Version 2$4.99
- Purchase Version 3$4.99
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- Purchase Version 4$4.99
- Purchase Version 5$4.99
Questions
Is Sader Method free?
Is Hemocytometer Sidekick free?
Which has better reviews, Sader Method or Hemocytometer Sidekick?
Do Sader Method or Hemocytometer Sidekick have ads?
Which is updated more often, Sader Method or Hemocytometer Sidekick?
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