# STAIR Coach vs Sofia Prime

The clearest difference is review sentiment: Sofia Prime at 100% against STAIR Coach's 50%. Sofia Prime also leads on rating (5.0 vs 4.2) and update cadence (every 5 weeks vs every 29 months). STAIR Coach's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, in-app purchases and device support there is nothing between them.

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

Sofia Prime holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: STAIR Coach has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of STAIR Coach's written reviews are positive against 100% of Sofia Prime's.

STAIR Coach ships an update every 29 months, Sofia Prime every 5 weeks. The most recent releases landed on June 10, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | STAIR Coach | Sofia Prime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (5 ratings)](https://appshunter.io/ios/app/stair-coach/id1567412251/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sofia-prime/id1669051579/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 29 months | **Every 5 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 121 MB | 128 MB |
| Requires iOS | **12.1** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [US Department of Veterans Affairs (VA)](https://appshunter.io/developer/430646305) | [Sofia Health, LLC](https://appshunter.io/developer/1669051581) |

## What reviewers say

### STAIR Coach

[App page](https://appshunter.io/ios/app/stair-coach/id1567412251)

This self-help course teaches evidence-based skills for managing emotions and improving relationships. It uses cognitive and behavioral techniques to help users cope with difficult feelings and navigate interpersonal challenges. The app offers interactive tools, educational content, and customizable reminders.

**Highlights:** Emotion management tools, Interpersonal regulation skills, Cognitive and behavioral techniques, Psychoeducation content, Customizable reminders, Support quick links

**Features:** macOS Compatibility

**In-app purchases:** none


### Sofia Prime

[App page](https://appshunter.io/ios/app/sofia-prime/id1669051579)

Plan and schedule classes directly from your mobile device. View class schedules, sign up for sessions, and access studio location information. Optimize your time and enhance convenience for class registration.

**Highlights:** View class schedules, Sign up for classes, Access studio location, Optimize time, Convenient registration

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

**In-app purchases:** none


## Frequently asked questions

### Is STAIR Coach free?

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

### Is Sofia Prime free?

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

### Which has better reviews, STAIR Coach or Sofia Prime?

Sofia Prime is rated higher. STAIR Coach averages 4.2 out of 5 from 5 ratings, while Sofia Prime averages 5.0 from 1 ratings.

### Do STAIR Coach or Sofia Prime have ads?

Sofia Prime shows ads; STAIR Coach does not.

### Which is updated more often, STAIR Coach or Sofia Prime?

STAIR Coach ships an update every 29 months, and Sofia Prime every 5 weeks. Most recently, STAIR Coach was updated on June 10, 2026 and Sofia Prime on September 2, 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.*