# Dewey Color System vs Mobile Engage Pro

The clearest difference is in-app purchases: Mobile Engage Pro at none against Dewey Color System's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Dewey Color System sells 4 one-off in-app purchases. Mobile Engage Pro asks for nothing beyond the download.

Dewey Color System ships an update monthly, Mobile Engage Pro every 2 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Dewey Color System | Mobile Engage Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dewey-color-system/id1629086274/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 51 MB | 52 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dewey Color System](https://appshunter.io/developer/1629086276) | [Engagement Mobile Strategies](https://appshunter.io/developer/1789847348) |

## What reviewers say

### Dewey Color System

[App page](https://appshunter.io/ios/app/dewey-color-system/id1629086274)

This productivity app provides daily coaching advice based on your profile and a moon calendar. It aims to boost mood, enhance critical thinking, and inspire self-discovery. Includes 24 coaching sessions to help you solve problems and take on new challenges.

**Highlights:** Profile-connected calendar, Daily coaching advice, Natural Talents insights, Life Lessons guidance, Boosts mood and critical thinking, 24 coaching sessions included

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Relationship Profile | $9.00 | one-time |
| Support Plus Coaching Calendar | $20.99 | one-time |
| Program Plus Coaching Calendar | $24.99 | one-time |
| Colorology Profile Upgrade | $29.00 | one-time |


### Mobile Engage Pro

[App page](https://appshunter.io/ios/app/mobile-engage-pro/id6740431942)

**In-app purchases:** none


## Frequently asked questions

### Is Dewey Color System free?

Dewey Color System is free to download, with in-app purchases available.

### Is Mobile Engage Pro free?

Mobile Engage Pro is free to download, with no in-app purchases.

### Do Dewey Color System or Mobile Engage Pro have ads?

Neither Dewey Color System nor Mobile Engage Pro shows ads.

### Which is updated more often, Dewey Color System or Mobile Engage Pro?

Dewey Color System ships an update monthly, and Mobile Engage Pro every 2 months. Most recently, Dewey Color System was updated on November 3, 2026 and Mobile Engage Pro on November 4, 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.*