Comparison

NOFFS Operational vs Sisly

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

Head to head
About

NOFFS Operational

This app provides a comprehensive fitness and nutrition program developed by the Navy and EXOS. It offers exercises mimicking operational duties, personalized fueling strategies for weight management, and regeneration techniques for injury prevention and mobility.

Highlights
  • Performance training exercises
  • Injury prevention strategies
  • Personalized caloric needs calculation
  • Meal builder with high-octane foods
  • Soft tissue release techniques
  • Flexibility routines
Features
Read full description

About NOFFS 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.

About

Sisly

Features
Read full description

Sisly is a preventive mental care app for working professionals, built to help you stay calm, focused, and mentally resilient—every day at work. Work pressure, constant meetings, deadlines, and overthinking quietly drain productivity. Sisly helps you detect early signs of stress, reset your mind daily, and perform better at work—without therapy, diagnosis, or judgment. What Sisly helps you with • Calm before important calls and meetings • Managing pressure, deadlines, and mental overload • Breaking overthinking and negative thought loops • Rebuilding confidence after tough work moments • Releasing stress safely before it affects performance • Resting and resetting for better sleep and recovery How it works • Daily mood check-ins and quick journaling • Guided audio content: meditations, affirmations, focus resets • “Do-with-me” exercises for instant calm • Smart nudges to build consistent habits • Rewards that encourage daily mental care Sisly is non-clinical, privacy-first, and designed for the modern workplace. It focuses on everyday mental fitness, not therapy—helping you show up calmer, clearer, and more in control at work. Think of Sisly as your daily mental reset for work life—simple, practical, and built to fit into your day. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://sisly.ai/privacy-policy

Screenshots

NOFFS Operational4 screens
Sisly4 screens

Verdict

The call

The clearest difference is update cadence: Sisly at weekly against NOFFS Operational's every 31 months. NOFFS Operational's advantage is iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases 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

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

UpkeepUpdate frequency

NOFFS Operational ships an update every 31 months, Sisly weekly. The most recent releases landed on October 28, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
NOFFS Operational versus Sisly: the parameters behind the verdict, then further details
ParameterNOFFS OperationalSisly
PriceFreeFree
Rating3.3 (14 ratings) — better—
Positive reviews53.3% of reviews—
Number of ratings14 — better—
Update frequencyEvery 31 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size110 MB143 MB
Age rating4+4+
DeveloperCNIC HQMetaFit FZ-LLC

In-app purchases

None

NOFFS Operational

No in-app purchases

None

Sisly

No in-app purchases

Questions

Is NOFFS Operational free?
NOFFS Operational is free to download, with no in-app purchases.
Is Sisly free?
Sisly is free to download, with no in-app purchases.
Do NOFFS Operational or Sisly have ads?
Neither NOFFS Operational nor Sisly shows ads.
Which is updated more often, NOFFS Operational or Sisly?
NOFFS Operational ships an update every 31 months, and Sisly weekly. Most recently, NOFFS Operational was updated on October 28, 2026 and Sisly on October 7, 2026.

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