# Consulting Mental Math vs Dotis

The clearest difference is in-app purchases: Dotis at none against Consulting Mental Math's 1. Dotis also leads on update cadence (every 2 days vs every 5 weeks) and iOS requirement (15.1 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Consulting Mental Math sells 1 one-off in-app purchase. Dotis asks for nothing beyond the download.

Consulting Mental Math ships an update every 5 weeks, Dotis every 2 days. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Consulting Mental Math | Dotis |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Size | 2 MB | 74 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Soham Bose](https://appshunter.io/developer/1641368323) | [Gabriel de Lima Moura](https://appshunter.io/developer/6783622055) |

## What reviewers say

### Consulting Mental Math

[App page](https://appshunter.io/ios/app/consulting-mental-math/id6761562339)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Premium Tiers | $4.99 | one-time |


### Dotis

[App page](https://appshunter.io/ios/app/dotis/id6783622053)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Consulting Mental Math free?

Consulting Mental Math is free to download, with in-app purchases available.

### Is Dotis free?

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

### Do Consulting Mental Math or Dotis have ads?

Neither Consulting Mental Math nor Dotis shows ads.

### Which is updated more often, Consulting Mental Math or Dotis?

Consulting Mental Math ships an update every 5 weeks, and Dotis every 2 days. Most recently, Consulting Mental Math was updated on October 8, 2026 and Dotis on October 16, 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.*