Comparison

MCCS ERR Support vs CorpsGuide

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MCCS ERR Support

Access information on resources for Marines within the Eastern Recruiting Region, covering the 1st, 4th, and 6th Marine Corps Districts. This reference tool helps Marines find available support and services.

Highlights
  • Resource information
  • Eastern Recruiting Region
  • 1st Marine Corps District
  • 4th Marine Corps District
  • 6th Marine Corps District
  • Support services
Read full description

This app provides information about resources available to Marines in the Eastern Recruiting Region: 1st, 4th, & 6th Marine Corps Districts.

About

CorpsGuide

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
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Welcome to CorpsGuide, the essential pocket reference app for Marines created by Marines. Whether you're active duty, reserve, veteran, or recruit, CorpsGuide provides vital tools and knowledge tailored for Marines. Key Features: - Messages & Alerts – Get push notifications for the latest MARADMINs and ALMARs, ensuring you never miss critical updates. View both new and historical messages in one convenient location. - PFT/CFT Calculator: Accurately calculate your Physical Fitness Test (PFT) and Combat Fitness Test (CFT) scores. - Annual Rifle Qualification (ARQ) Calculator: Calculate your ARQ classification from destroys and drill types passed, plus the rifle value it is worth toward JEPES. Includes the Expert, Sharpshooter, and Marksman standards, the full course of fire, and who shoots ARQ each year. - Body Composition (WHtR) Calculator – Check your Marine Corps body composition screening using the current Waist-to-Height Ratio (WHtR) standard. See maximum waist limits, remaining margin before exceeding the standard, and reference body fat allowances. - Military Pay Calculator: Estimate monthly or yearly Marine Corps pay using grade, years of service, Basic Pay, BAH, BAS, duty station ZIP code, and dependent status. - TSP Calculator: Estimate your Thrift Savings Plan (TSP) balance at retirement with contributions, BRS government match, annual return, salary growth, and year-by-year projections. - JEPES Calculator: Effortlessly compute your Junior Enlisted Performance Evaluation System (JEPES) scores to track your career progression. - Cutting Scores: View current and historical cutting scores to monitor career progression and prepare for promotion opportunities. - Ribbon Rack: Build and customize your ribbon rack with detailed ribbon information at your fingertips. - Medal Rack (Premium): Build accurate medal racks with full device support, including stars and other authorized devices. Easily visualize how your medals and ribbons should be worn for dress uniforms. - Marine Corps Installations: Browse major bases, air stations, depots, and logistics bases with location, major commands, local time, and official links. Includes an interactive world map that works with no signal. - Extensive Knowledge Base: Aircraft, vehicles, weapons, MOS list, general Marine Corps knowledge, acronyms, jargon, the phonetic alphabet, MRE menus, and official documents — all at your fingertips. - Ranks, Uniforms & Insignia: Military ranks for all six branches, plus reference on badges & insignia, medals, ribbons, and uniform regulations. - Date & Time Tools: EAS/retirement countdown, Julian and calendar date conversion, and local time at Marine Corps bases worldwide. - Marine Corps History: Commandants of the Marine Corps, Sergeants Major of the Marine Corps, and notable Marines. Why Choose CorpsGuide? - Created by Marines for Marines: Developed by those who understand the demands of Marine Corps life. - Always Up-to-Date: Regular updates ensure current and accurate information. - User-Friendly Interface: Easy navigation with an intuitive design. Download CorpsGuide today and have the most reliable Marine Corps reference tool at your fingertips. Stay informed, stay prepared, and Semper Fi! Disclaimer: CorpsGuide is an independent app created for educational purposes. This app is not affiliated with, endorsed by, or authorized by the United States Marine Corps (USMC), the Department of War, or any other government entity. Privacy Policy: https://corpsguide.com/privacy-policy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

MCCS ERR Support4 screens
CorpsGuide4 screens

Verdict

The call

The clearest difference is review sentiment: CorpsGuide at 80% against MCCS ERR Support's 0%. CorpsGuide also leads on rating (4.9 vs 3.3) and ratings volume (278 vs 4). MCCS ERR Support's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

CorpsGuide holds the better App Store score, 4.9 against 3.3. That said, the two scores are not equally well evidenced: CorpsGuide has 278 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of MCCS ERR Support's written reviews are positive against 80% of CorpsGuide's.

UpkeepUpdate frequency

MCCS ERR Support ships an update every 6 weeks, CorpsGuide every 11 days. The most recent releases landed on September 30, 2026 and September 29, 2026 respectively.

Scorecard7 real differences · 3 level
MCCS ERR Support versus CorpsGuide: the parameters behind the verdict, then further details
ParameterMCCS ERR SupportCorpsGuide
PriceFreeFree
Rating3.3 (4 ratings)4.9 (278 ratings) — better
Positive reviews0.0% of reviews80.0% of reviews — better
Number of ratings4278 — better
Update frequencyEvery 6 weeksEvery 11 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size16 MB60 MB
Age rating4+9+
DeveloperBUSINESS AND SUPPORT SERVICESYonah Systems

Customer experience

MCCS ERR Support

All ratings4 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

CorpsGuide

All ratings278 ratings
Positive97.8%
Neutral1.4%
Negative0.7%
Written reviews10 reviews
Positive80.0%
Neutral10.0%
Negative10.0%

In-app purchases

None

MCCS ERR Support

No in-app purchases

3 purchases

CorpsGuide

Subscriptions2
  • CorpsGuide - Premium - 1 Month$3.991 Month
  • CorpsGuide - Premium - 1 Year$29.991 Year
One-time1
  • Lifetime Premium Access$59.99

Questions

Is MCCS ERR Support free?
MCCS ERR Support 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, MCCS ERR Support or CorpsGuide?
CorpsGuide is rated higher. MCCS ERR Support averages 3.3 out of 5 from 4 ratings, while CorpsGuide averages 4.9 from 278 ratings.
Do MCCS ERR Support or CorpsGuide have ads?
CorpsGuide shows ads; MCCS ERR Support does not.
Which is updated more often, MCCS ERR Support or CorpsGuide?
MCCS ERR Support ships an update every 6 weeks, and CorpsGuide every 11 days. Most recently, MCCS ERR Support was updated on September 30, 2026 and CorpsGuide on September 29, 2026.

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