Comparison

The Ready Room vs FFMI Calc

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

Head to head
About

The Ready Room

Access hundreds of hours of elite training in survival, spycraft, and combat from retired Navy SEALs and top experts. Stream new content weekly on any device, anytime, anywhere. Learn real-world skills from experienced professionals.

Highlights
  • Elite training from retired Navy SEALs
  • Hundreds of hours of content
  • New releases weekly
  • Stream on any device
  • Real-world skills development
  • Survival, self-defense, tactical training
Read full description

Master the Skills of Survival, Spycraft & Combat Hundreds of hours of elite training, taught by retired Navy SEALs and top experts. Unlimited Access Stream the entire content library, plus new releases every week—no limits. Watch Anywhere Readiness at your fingertips—train from any device, anytime, anywhere. Learn from the Best Gain real-world skills from the most experienced professionals in survival, self-defense, and tactical training. To access all features and content you can subscribe to The Ready Room on a monthly with an auto-renewing subscription right inside the app. Pricing can vary by region and will be confirmed before purchase in the app. In app subscriptions will automatically renew at the end of their cycle. All payments will be paid through your iTunes Account and may be managed under Account Settings after the initial payment. Subscription payments will automatically renew unless deactivated at least 24-hours before the end of the current cycle. Your account will be charged for renewal at least 24-hours prior to the end of the current cycle. Any unused portion of your free trial will be forfeited upon payment. Cancellations are incurred by disabling auto-renewal. Terms of Service: https://www.thereadyroom.net/tos Privacy Policy: https://www.thereadyroom.net/privacy

About

FFMI Calc

Features
Read full description

■ Main Features Instant FFMI & Normalized FFMI Calculation Simply enter your height, weight, and body fat percentage to instantly calculate your Fat-Free Mass Index (FFMI) and "Normalized FFMI," which adjusts for height differences to ensure a fair evaluation. [NEW] Target FFMI Reverse Simulator "What changes do I need to make to reach a Normalized FFMI of 22?" Just set your target value, and the app automatically generates a "Body Fat % and Target Weight combination list" based on your height. It strongly supports your specific goal setting, from bulking up to cutting, by factoring in body fat fluctuations. Classification Rank Display Based on your calculated values, it provides intuitive feedback on where your muscle mass ranks, from below average up to the "God-like" level. Global Support Full compatibility with both Metric (cm/kg) and Imperial (ft/lbs) systems. It also supports multiple languages (Japanese, English, Korean, Traditional Chinese, and German).

Screenshots

The Ready Room4 screens
FFMI Calc3 screens

Verdict

The call

The clearest difference is in-app purchases: FFMI Calc at none against The Ready Room's 1. FFMI Calc also leads on ads (none vs shown) and update cadence (every 5 days vs every 10 days). The Ready Room's advantage is iOS requirement (15.0 vs 26.4). On price 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. The Ready Room sells 1 in-app purchase, starting at $4.99 per month. FFMI Calc asks for nothing beyond the download.

UpkeepUpdate frequency

The Ready Room ships an update every 10 days, FFMI Calc every 5 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 6 level
The Ready Room versus FFMI Calc: the parameters behind the verdict, then further details
ParameterThe Ready RoomFFMI Calc
PriceFreeFree
Rating5.0 (13 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings13 — better—
Update frequencyEvery 10 daysEvery 5 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better26.4
Further details — not scored
Size74 MB1 MB
Age rating17+4+
DeveloperGENERATION MEDIA SOLUTIONS LLCTomoharu Iseki

In-app purchases

1 purchases

The Ready Room

Subscriptions1
  • The Ready Room Monthly7 Days trial$4.991 Month
None

FFMI Calc

No in-app purchases

Questions

Is The Ready Room free?
The Ready Room is free to download, with in-app purchases available.
Is FFMI Calc free?
FFMI Calc is free to download, with no in-app purchases.
Do The Ready Room or FFMI Calc have ads?
The Ready Room shows ads; FFMI Calc does not.
Which is updated more often, The Ready Room or FFMI Calc?
The Ready Room ships an update every 10 days, and FFMI Calc every 5 days. Most recently, The Ready Room was updated on October 24, 2026 and FFMI Calc on October 28, 2026.

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