# PSM I vs Posso

The clearest difference is in-app purchases: Posso at none against PSM I's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PSM I sells 2 one-off in-app purchases. Posso asks for nothing beyond the download.

PSM I ships an update every 6 weeks, Posso every 4 weeks. The most recent releases landed on June 11, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | PSM I | Posso |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/posso/id6772030317/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 31 MB | 27 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Konstantin Skoblik](https://appshunter.io/developer/950788892) | [OMC Studio LLC](https://appshunter.io/developer/6772030319) |

## What reviewers say

### PSM I

[App page](https://appshunter.io/ios/app/psm-i/id1566830360)

Prepare for your Professional Scrum Master 1 (PSM 1) certification with a comprehensive study tool. It offers realistic exam practice with randomized questions, a large question bank, and the official Scrum Guide. Achieve certification success efficiently and affordably.

**Highlights:** Randomized practice tests, Extensive question bank, Integrated Scrum Guide, Affordable pricing options, Focus on exam results

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Time Access | $0.99 | one-time |
| Unlock PRO Mode | $3.99 | one-time |


### Posso

[App page](https://appshunter.io/ios/app/posso/id6772030317)

This app helps children complete daily tasks by earning stars for completed chores, which can then be redeemed for rewards. It allows parents to customize chore lists, set up reward systems, and track their children's progress. The app also includes features for managing pet care and a unique swear jar functionality.

**Highlights:** Personalized daily chore lists for each child, Star-based reward system, Customizable reward options, Progress tracking and activity logs, Pet chore management, Parental PIN protection, Swear jar feature

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PSM I free?

PSM I is free to download, with in-app purchases available.

### Is Posso free?

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

### Do PSM I or Posso have ads?

Neither PSM I nor Posso shows ads.

### Which is updated more often, PSM I or Posso?

PSM I ships an update every 6 weeks, and Posso every 4 weeks. Most recently, PSM I was updated on June 11, 2026 and Posso on September 10, 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.*