# PI Family Day vs CorpsGuide

The clearest difference is in-app purchases: PI Family Day at none against CorpsGuide's 3. PI Family Day also leads on ads (none vs shown) and review sentiment (100% vs 80%). CorpsGuide's advantage is update cadence (every 11 days vs every 8 months) and ratings volume (288 vs 22). On price, rating, device support and iOS requirement there is nothing between them.

Both are free to download. CorpsGuide sells 3 in-app purchases, starting at $3.99 per month. PI Family Day asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for PI Family Day against 4.9 for CorpsGuide. That said, the two scores are not equally well evidenced: CorpsGuide has 288 ratings behind it against 22, so its average is the more settled of the two. Written reviews are what separate them: 100% of PI Family Day's written reviews are positive against 80% of CorpsGuide's.

PI Family Day ships an update every 8 months, CorpsGuide every 11 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PI Family Day | CorpsGuide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (22 ratings)](https://appshunter.io/ios/app/pi-family-day/id1474084140/reviews)** | [4.9 (288 ratings)](https://appshunter.io/ios/app/corpsguide/id6524634621/reviews) |
| Number of ratings | 22 | **288** |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 22 MB | 52 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [BUSINESS AND SUPPORT SERVICES](https://appshunter.io/developer/1450836994) | [Yonah Systems](https://appshunter.io/developer/1694042531) |

## What reviewers say

### PI Family Day

[App page](https://appshunter.io/ios/app/pi-family-day/id1474084140)

This program helps loved ones of recruits and new Marines prepare for military life and graduation. It offers a three-day schedule of activities and events designed to make families feel welcome and informed about the Marine Corps lifestyle.

**Highlights:** Information for recruit families, Graduation preparation, Introduction to military lifestyle, Official MCRD Parris Island resource, Event schedules and activities

**Features:** Vision Pro support

**In-app purchases:** none


### CorpsGuide

[App page](https://appshunter.io/ios/app/corpsguide/id6524634621)

This app serves as a comprehensive pocket reference for Marines, offering tools for fitness testing, body composition, performance evaluations, and career progression. It includes a knowledge base on aircraft, weapons, ranks, and uniform regulations, with features for building ribbon and medal racks.

**Highlights:** Push notifications for MARADMINs and ALMARs, PFT/CFT and Body Composition calculators, JEPES and Cutting Scores trackers, Ribbon and Medal Rack builder, Extensive knowledge base on Marine Corps topics, Uniform regulations and insignia information

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CorpsGuide - Premium - 1 Month | $3.99 | per month |
| CorpsGuide - Premium - 1 Year | $29.99 | per year |
| Lifetime Premium Access | $59.99 | one-time |


## Frequently asked questions

### Is PI Family Day free?

PI Family Day is free to download, with no in-app purchases.

### Is CorpsGuide free?

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

### Which has better reviews, PI Family Day or CorpsGuide?

PI Family Day is rated higher. PI Family Day averages 5.0 out of 5 from 22 ratings, while CorpsGuide averages 4.9 from 288 ratings.

### Do PI Family Day or CorpsGuide have ads?

CorpsGuide shows ads; PI Family Day does not.

### Which is updated more often, PI Family Day or CorpsGuide?

PI Family Day ships an update every 8 months, and CorpsGuide every 11 days. Most recently, PI Family Day was updated on October 24, 2026 and CorpsGuide on October 25, 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.*