Bom Calendar - Period tracker vs Google Health (Fitbit)

Bom Calendar - Period tracker

bomcomes Corp.
App Store
$0/mo
~$0/yr · 125K installs
VS

Google Health (Fitbit)

Google
App Store
$1.43M/mo
~$17.12M/yr · 101.5M installs
Revenue winner Google Health (Fitbit) wins +142705000% vs other
Installs winner Google Health (Fitbit) wins +81080% vs other
MAU winner Google Health (Fitbit) wins +22503% vs other
Rating winner Bom Calendar - Period tracker wins +1% vs other

Why Google Health (Fitbit) is winning

Top 4 reasons - backed by the public App Store / Play Store numbers.

  1. Google Health (Fitbit) earns roughly 1427050× more per month than Bom Calendar - Period tracker - $1.43M vs $0.
  2. Subscription model. Google Health (Fitbit) runs a $9.99/mo subscription that compounds; Bom Calendar - Period tracker relies on one-shot IAP or ads.
  3. Bigger install base. Google Health (Fitbit) has ~101.5M lifetime installs vs Bom Calendar - Period tracker's ~125K - 811.8× the funnel top.
  4. Charts placement. Google Health (Fitbit) ranks #91 on the US grossing chart (the other app is unranked) - chart placement is a self-reinforcing flywheel.

→ Find more apps with this revenue gap · Full Google Health (Fitbit) report

Side-by-side metrics

Bars scale to whichever app is bigger on that row. Green = winner.

Bom Calendar - Period tracker
vs
Google Health (Fitbit)
Monthly revenue (est.)?
$0
▶
$1.43M
Annual revenue (est.)
$0
▶
$17.12M
Lifetime installs (est.)
125K
▶
101.5M
Monthly active users (est.)?
32K
▶
7.2M
App Store rating
4.56★
◀
4.49★
Total ratings
2K
▶
677K
US grossing rank
-
▶
#91
Cheapest monthly sub
No sub
▶
$9.99
IAP tiers detected
0 tiers
▶
2 tiers

Bom Calendar - Period tracker

bomcomes Corp.
App Store
Category
Health & Fitness
Price
Free
Released
Feb 24, 2017
Last updated
Jun 13, 2026
File size
121.1 MB
Content rating
12+
Version
2.6.2
Languages
English, Korean
View full Bom Calendar - Period tracker report →

Google Health (Fitbit)

Google
App Store
Category
Health & Fitness
Price
Free
Released
Oct 18, 2011
Last updated
Jun 23, 2026
File size
548.8 MB
Content rating
4+
Version
5.02.1
Languages
Bulgarian, Croatian, Czech, Danish, Dutch, English +26 more
View full Google Health (Fitbit) report →

Bom Calendar - Period tracker trajectory

AugSepOctNovDecJanFebMarAprMayJunJul

Google Health (Fitbit) trajectory

AugSepOctNovDecJanFebMarAprMayJunJul

Related app pages

Bom Calendar - Period tracker App Store page →Google Health (Fitbit) App Store page →

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Compare another pair

FAQ

Which makes more money, Bom Calendar - Period tracker or Google Health (Fitbit)? v
Google Health (Fitbit) earns about $1.43M per month, while Bom Calendar - Period tracker earns about $0. That is a ∞× revenue gap (~$1.43M more per month for Google Health (Fitbit)). Annual revenue: Bom Calendar - Period tracker ≈ $0/year, Google Health (Fitbit) ≈ $17.12M/year. Estimates are derived from public App Store signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, Bom Calendar - Period tracker or Google Health (Fitbit)? v
Google Health (Fitbit) leads with about 101.5M estimated downloads vs 125K for Bom Calendar - Period tracker - a 811.8× gap. Bom Calendar - Period tracker's App Store downloads are estimated from 2K ratings × the standard 1:75 ratio. Google Health (Fitbit)'s App Store downloads are estimated from 677K ratings.
Are Bom Calendar - Period tracker and Google Health (Fitbit) in the same App Store category and competing for the same money? v
Yes - both apps sit in the Health & Fitness category, which means they compete directly for the same paying users and category-level wallet share. Direct competitors, head-to-head.
What in-app purchases and subscription pricing do Bom Calendar - Period tracker and Google Health (Fitbit) offer? v
Bom Calendar - Period tracker: no IAP detected on the public listing. Google Health (Fitbit): IAP range 2 tiers detected. Bom Calendar - Period tracker runs a "No App Store revenue (monetizes off-store)" monetization model; Google Health (Fitbit) runs "Subscription (~$6.67/mo) · calibrated by US grossing rank #91". Scraped tier prices and detected subscription pricing drive the bulk of the per-app revenue estimate above.
Which has better ratings, Bom Calendar - Period tracker or Google Health (Fitbit)? v
Bom Calendar - Period tracker edges ahead with ★ 4.6 vs ★ 4.5 (gap of 0.1 stars). Rating volume: Bom Calendar - Period tracker 2K ratings, Google Health (Fitbit) 677K ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these Bom Calendar - Period tracker vs Google Health (Fitbit) revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $0 for Bom Calendar - Period tracker and $1.43M for Google Health (Fitbit) are derived from App Store grossing rank, scraped IAP tiers, ratings volume and category benchmarks (Health & Fitness) - net of the 15-30% Apple/Google store cut. Real revenue depends on country mix, retention, refunds and ad fill rate, none of which Apple or Google publish.
How do I compare Bom Calendar - Period tracker or Google Health (Fitbit) to a different App Store app? v
Use the search box at the bottom of this page or paste any two App Store links into the homepage tool. We auto-generate a permanent comparison URL with revenue, downloads, IAP tiers, subscription pricing and grossing rank for both apps.