# M's Counter vs Eccentric Visor

The clearest difference is price: M's Counter at Free against Eccentric Visor's $4.99. M's Counter also leads on iOS requirement (8.1 vs 15.3). Eccentric Visor's advantage is update cadence (monthly vs every 23 months). On ads, in-app purchases and device support there is nothing between them.

M's Counter is free to download; Eccentric Visor costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

M's Counter ships an update every 23 months, Eccentric Visor monthly. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | M's Counter | Eccentric Visor |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[3.3 (4 ratings)](https://appshunter.io/ios/app/ms-counter/id440126712/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Monthly** |
| Monetization | Free | — |
| Size | 79 MB | 42 MB |
| Requires iOS | **8.1** | 15.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Maki System, Inc.](https://appshunter.io/developer/440126715) | [Luis Sanchez-Beato Frates](https://appshunter.io/developer/1888008213) |

## What reviewers say

### M's Counter

[App page](https://appshunter.io/ios/app/ms-counter/id440126712)

This utility app assists users in classifying and counting leukocytes while observing them through a microscope. It provides auditory feedback for button presses and calculates real white blood cell counts based on user input. The upper bound for counting can be adjusted.

**Highlights:** Leukocyte classification, Microscope observation aid, Auditory feedback for counting, Real-time white blood cell calculation, Adjustable counting upper bound

**Features:** macOS Compatibility

**In-app purchases:** none


### Eccentric Visor

[App page](https://appshunter.io/ios/app/eccentric-visor/id6761143992)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is M's Counter free?

M's Counter is free to download, with no in-app purchases.

### Is Eccentric Visor free?

Eccentric Visor costs $4.99, with no in-app purchases.

### Do M's Counter or Eccentric Visor have ads?

Neither M's Counter nor Eccentric Visor shows ads.

### Which is updated more often, M's Counter or Eccentric Visor?

M's Counter ships an update every 23 months, and Eccentric Visor monthly. Most recently, M's Counter was updated on November 1, 2026 and Eccentric Visor on October 31, 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.*