# Counter B vs Mio

The clearest difference is rating: Mio at 4.5 against Counter B's 4.0. Mio also leads on ratings volume (75 vs 1). Counter B's advantage is review sentiment (83% vs 51%) and iOS requirement (6.0 vs 26.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mio holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Mio has 75 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 83% of Counter B's written reviews are positive against 51% of Mio's, so the app with the better star average is not the one people write more warmly about.

Counter B ships an update every 3 weeks, Mio monthly. The most recent releases landed on November 10, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Counter B | Mio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/counter-b/id374184491/reviews) | **[4.5 (75 ratings)](https://appshunter.io/ios/app/mio-ask-mathstudio-with-ai/id884690417/reviews)** |
| Number of ratings | 1 | **75** |
| Positive reviews | **83.3% of reviews** | 51.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 4 MB | 11 MB |
| Requires iOS | **6.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rage Box](https://appshunter.io/developer/360832186) | [Pomegranate Apps LLC](https://appshunter.io/developer/293619496) |

## What reviewers say

### Counter B

[App page](https://appshunter.io/ios/app/counter-b/id374184491)

A stylish and simple application for tracking counts. Choose from three different themes to personalize your counting experience. Easily count anything, anywhere.

**Highlights:** Stylish design, Multiple theme options, Simple counting functionality, Count anywhere

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

**In-app purchases:** none


### Mio

[App page](https://appshunter.io/ios/app/mio-ask-mathstudio-with-ai/id884690417)

This AI-powered assistant solves math problems, plots graphs, and answers general knowledge questions directly on your device. It can process image input for homework and offers offline capabilities for most functions, only connecting online for live data.

**Highlights:** AI math problem solving, Real-time graph plotting, Image input for homework, Offline knowledge assistant, Live data retrieval, General knowledge inquiries

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

**In-app purchases:** none


## Frequently asked questions

### Is Counter B free?

Counter B is free to download, with no in-app purchases.

### Is Mio free?

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

### Which has better reviews, Counter B or Mio?

Mio is rated higher. Counter B averages 4.0 out of 5 from 1 ratings, while Mio averages 4.5 from 75 ratings.

### Do Counter B or Mio have ads?

Neither Counter B nor Mio shows ads.

### Which is updated more often, Counter B or Mio?

Counter B ships an update every 3 weeks, and Mio monthly. Most recently, Counter B was updated on November 10, 2026 and Mio on November 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.*