Comparison

NOFFS Strength vs Navy PFA Calc

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

Head to head
About

NOFFS Strength

This app offers a comprehensive fitness and nutrition system developed by the Navy, focusing on performance enhancement and injury prevention. It includes strength training programs, personalized fueling strategies, and recovery techniques to help users achieve their fitness goals.

Highlights
  • Strength training phases
  • Personalized caloric needs calculation
  • Meal builder and planner
  • Soft tissue release techniques
  • Flexibility routines
  • Progressive strength development
Features
Read full description

NOFFS Strength Series Developed by the Navy in partnership with EXOS (formerly Athlete’s Performance Institute), the Navy Operational Fitness and Fueling System (NOFFS) is designed to provide the Navy with a "world-class" performance training resource for Sailors, as well as Navy health and fitness professionals. Using the latest sports science methodologies, NOFFS combines both human performance and injury prevention strategies, resulting in safer training while yielding positive human performance outcomes. The exercises used in the NOFFS program are designed to replicate the activities Sailors conduct in their operational duties: lifting, pushing, pulling, and carrying. Developed as a complete fitness package, the fueling strategies allow you to determine your total caloric needs based on your personal goals, whether your desire is to lose, maintain or gain weight. The meal builder enables you to choose high-octane foods for each meal, populate your meal plan a week at a time, and email it to yourself. Finally, the regeneration component of this series will assist you with addressing and preventing common aches and pains. The soft tissue release techniques combined with the flexibility routine restores muscular balance and ensures you develop and maintain the mobility necessary for high-level performance. The Strength Series is an advanced program designed as a progression to the Operational Series. This series will assist you with developing the strength that is needed to perform at your highest level. There are three training phases within the series intended to progressively build your total work capacity and improve cardiovascular fitness. The first phase, Build Muscle, is focused on building lean muscle mass and improving your body’s capacity to handle greater physical demands through a higher volume of work. The second phase, Get Strong, focuses on building strength through fewer repetitions and higher intensity. The final phase, Get Powerful, harnesses your newfound strength and trains your muscles to be fast and forceful.

About

Navy PFA Calc

Calculate US Navy Physical Fitness Assessments (PFA), Physical Readiness Tests (PRT), Body Composition Assessments (BCA), and Combat Fitness Tests (CFT). Supports various cardio options and includes event goal calculations with precise rounding for measurements.

Highlights
  • Supports all approved bikes
  • BCA calculator with 1/4 inch precision
  • Height/weight calculator with rounding
  • Saved entered values for quick recalculations
  • Full cardio option support
  • Event goal calculator
  • Support for users >5000ft
Features
Read full description

*** Updated for new December 2025 BCA/CFT changes *** Best and most fully featured US Navy Physical Fitness Assessment(PFA) / Physical Readiness Test(PRT) / Body Composition Assessment (BCA) / Combat Fitness Test (CFT) iOS application. Highlights: - Supports all approved bikes according to latest Physical Readiness Program Newsletters, CFL Guides, and OPNAVINST 6110.1L. - Only BCA calculator that supporting measurements to the 1/4 inch with proper rounding performed per the CFL guide and OPNAV. - Only height/weight calculator that supports rounding and max allowed weight per OPNAVINST 6110.1L. - Entered values are saved for quick recalculations on each use of the app. - Full cardio option support (run/walk, row, swim and bike) - PRT goal calculator: See individual event PRT results needed to make a specific score with kCal/hour needed for bikes. - CFT goal calculator: See individual event CFT results needed to make a specific score - Full support for >5000ft users - Ability to save and view past assessment results to see trends over time Calculates: -BCA results (WHtR and BF%) -CFT Results -PRT results for all official options (including all supported bikes). -Individual event scores to make a user selected score. *** Not to be used for official BFA/PRT/CFT scoring *** *** This application is not officially endorsed or sponsored by the US Navy. ***

Screenshots

NOFFS Strength4 screens
Navy PFA Calc4 screens

Verdict

The call

The clearest difference is price: NOFFS Strength at Free against Navy PFA Calc's $1.99. NOFFS Strength also leads on review sentiment (100% vs 74%) and rating (5.0 vs 4.8). Navy PFA Calc's advantage is update cadence (every 3 weeks vs every 23 months) and ratings volume (310 vs 6). On ads, in-app purchases, monetization model and device support 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

NOFFS Strength is free to download; Navy PFA Calc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

NOFFS Strength holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Navy PFA Calc has 310 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 100% of NOFFS Strength's written reviews are positive against 74% of Navy PFA Calc's.

UpkeepUpdate frequency

NOFFS Strength ships an update every 23 months, Navy PFA Calc every 3 weeks. The most recent releases landed on July 4, 2026 and September 21, 2026 respectively.

Scorecard7 real differences · 4 level
NOFFS Strength versus Navy PFA Calc: the parameters behind the verdict, then further details
ParameterNOFFS StrengthNavy PFA Calc
PriceFree — better$1.99
Rating5.0 (6 ratings) — better4.8 (310 ratings)
Positive reviews100.0% of reviews — better74.3% of reviews
Number of ratings6310 — better
Update frequencyEvery 23 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank—#72 — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS9.0 — better17.0
Further details — not scored
Size156 MB77 MB
Age rating4+4+
DeveloperCNIC HQCrash Test Dummy Limited, LLC

Customer experience

NOFFS Strength

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Navy PFA Calc

All ratings310 ratings
Positive96.8%
Neutral1.6%
Negative1.6%
Written reviews35 reviews
Positive74.3%
Neutral8.6%
Negative17.1%

Bugs and requests

NOFFS Strength

Not enough reviews yet to summarise bugs or requests.

Navy PFA Calc

Reported bugs

6 issues
  • Treadmill deleted but still testable
  • Crashes to desktop
  • Body fat percentage calculation off
  • Score calculator not working
  • Elliptical entries failing
Show 1 more
  • Instructions/contact developer not navigable on older iOS

Requested features

5 requests
  • Add developer email for issues
  • Add phone number keypad for calculations
  • Add 'tab' key or arrows for navigation
  • Automatic calculation on 'return' key press
  • Include Navy Instruction for physical readiness

In-app purchases

None

NOFFS Strength

No in-app purchases

None

Navy PFA Calc

No in-app purchases

Questions

Is NOFFS Strength free?
NOFFS Strength is free to download, with no in-app purchases.
Is Navy PFA Calc free?
Navy PFA Calc costs $1.99, with no in-app purchases.
Which has better reviews, NOFFS Strength or Navy PFA Calc?
NOFFS Strength is rated higher. NOFFS Strength averages 5.0 out of 5 from 6 ratings, while Navy PFA Calc averages 4.8 from 310 ratings.
Do NOFFS Strength or Navy PFA Calc have ads?
Neither NOFFS Strength nor Navy PFA Calc shows ads.
Which is updated more often, NOFFS Strength or Navy PFA Calc?
NOFFS Strength ships an update every 23 months, and Navy PFA Calc every 3 weeks. Most recently, NOFFS Strength was updated on July 4, 2026 and Navy PFA Calc on September 21, 2026.

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