Comparison

FFMI vs FFMI Calc

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

Head to head
About

FFMI

Features
Read full description

Calculate and keep track of your Fat Free Mass Index (FFMI). Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

FFMI Calc

Features
Read full description

โ–  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

FFMI2 screens
FFMI Calc3 screens

Verdict

The call

The clearest difference is in-app purchases: FFMI Calc at none against FFMI's 1. FFMI Calc also leads on update cadence (every 4 days vs every 3 months). FFMI's advantage is iOS requirement (16.0 vs 26.4). On price, ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. FFMI sells 1 in-app purchase, starting at $0.99 per year. FFMI Calc asks for nothing beyond the download.

UpkeepUpdate frequency

FFMI ships an update every 3 months, FFMI Calc every 4 days. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

Scorecard3 real differences ยท 3 level
FFMI versus FFMI Calc: the parameters behind the verdict, then further details
ParameterFFMIFFMI Calc
PriceFreeFree
Update frequencyEvery 3 monthsEvery 4 days โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhoneiPhone, iPad โ€” better
Requires iOS16.0 โ€” better26.4
Further details โ€” not scored
Size6 MB1 MB
Age rating4+4+
DeveloperAlmudena Blanco MorettTomoharu Iseki

In-app purchases

1 purchases

FFMI

Subscriptions1
  • Full Year Access$0.991 Year
None

FFMI Calc

No in-app purchases

Questions

Is FFMI free?
FFMI 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 FFMI or FFMI Calc have ads?
Neither FFMI nor FFMI Calc shows ads.
Which is updated more often, FFMI or FFMI Calc?
FFMI ships an update every 3 months, and FFMI Calc every 4 days. Most recently, FFMI was updated on October 3, 2026 and FFMI Calc on October 7, 2026.

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