# CorpsGuide vs TBS Field Guide

The clearest difference is price: CorpsGuide at Free against TBS Field Guide's $4.99. CorpsGuide also leads on iOS requirement (15.0 vs 17.0). TBS Field Guide's advantage is in-app purchases (none vs 3) and ads (none vs shown). On update cadence and device support there is nothing between them.

CorpsGuide is free to download; TBS Field Guide costs $4.99 up front. CorpsGuide sells 3 in-app purchases, starting at $3.99 per month. TBS Field Guide asks for nothing beyond the download.

CorpsGuide ships an update every 11 days, TBS Field Guide weekly. The most recent releases landed on September 29, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | CorpsGuide | TBS Field Guide |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.9 (278 ratings)](https://appshunter.io/ios/app/corpsguide/id6524634621/reviews)** | — |
| Number of ratings | **278** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 11 days | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | — | **#199** |
| Size | 60 MB | 2 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Yonah Systems](https://appshunter.io/developer/1694042531) | [Jeremiah Fries](https://appshunter.io/developer/1076111050) |

## What reviewers say

### 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 |


### TBS Field Guide

[App page](https://appshunter.io/ios/app/tbs-field-guide/id6794703431)

**Currently charting:** #199 Top Paid · Reference (US App Store)

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

**In-app purchases:** none


## Frequently asked questions

### Is CorpsGuide free?

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

### Is TBS Field Guide free?

TBS Field Guide costs $4.99, with no in-app purchases.

### Do CorpsGuide or TBS Field Guide have ads?

CorpsGuide shows ads; TBS Field Guide does not.

### Which is updated more often, CorpsGuide or TBS Field Guide?

CorpsGuide ships an update every 11 days, and TBS Field Guide weekly. Most recently, CorpsGuide was updated on September 29, 2026 and TBS Field Guide on September 17, 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.*