# dob vs Medistoris.cat

The clearest difference is price: Medistoris.cat at Free against dob's $2.99. Medistoris.cat also leads on update cadence (fortnightly vs every 3 months) and device support (3 vs 1). dob's advantage is iOS requirement (12.0 vs 15.1). On ads and in-app purchases there is nothing between them.

Medistoris.cat is free to download; dob costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

dob ships an update every 3 months, Medistoris.cat fortnightly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | dob | Medistoris.cat |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/dob-visual-perception/id981954512/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Paid | — |
| Size | 78 MB | 166 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rene Fehr-Biscioni](https://appshunter.io/developer/969998405) | [EVA PEIRO FRANCES](https://appshunter.io/developer/1708645907) |

## What reviewers say

### dob

[App page](https://appshunter.io/ios/app/dob-visual-perception/id981954512)

This app offers exercises to train essential visual skills like attention, coordination, and memory. It's designed for learners of all ages, including children and individuals undergoing rehabilitation, and can be customized to individual needs.

**Highlights:** Visual Attention training, Ocular motility exercises, Hand and Eye Coordination, Motion Perception, Contrast Sensitivity, Face and facial expression recognition, Color Recognition and differentiation, Figure-Ground Perception

**In-app purchases:** none


### Medistoris.cat

[App page](https://appshunter.io/ios/app/medistoriscat/id6744122647)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is dob free?

dob costs $2.99, with no in-app purchases.

### Is Medistoris.cat free?

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

### Do dob or Medistoris.cat have ads?

Neither dob nor Medistoris.cat shows ads.

### Which is updated more often, dob or Medistoris.cat?

dob ships an update every 3 months, and Medistoris.cat fortnightly. Most recently, dob was updated on November 1, 2026 and Medistoris.cat on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*