Zero: Fasting & Food Tracker vs Flo Ovulation & Period Tracker

Zero: Fasting & Food Tracker

Zero Longevity Science, Inc.
App Store
$2.80M/mo
~$33.64M/yr · 66.8M installs
VS

Flo Ovulation & Period Tracker

Flo Health Inc.
Google Play
$4.04M/mo
~$48.44M/yr · 196.5M installs
Revenue winner Flo Ovulation & Period Tracker wins +44% vs other
Installs winner Flo Ovulation & Period Tracker wins +194% vs other
MAU winner Zero: Fasting & Food Tracker wins +23% vs other
Rating winner Zero: Fasting & Food Tracker wins +3% vs other

Why Flo Ovulation & Period Tracker is winning

Top 2 reasons - backed by the public App Store / Play Store numbers.

  1. Aggressive pricing. Flo Ovulation & Period Tracker undercuts at $9.95/mo vs $9.99/mo - converts a higher % of free users.
  2. Bigger install base. Flo Ovulation & Period Tracker has ~196.5M lifetime installs vs Zero: Fasting & Food Tracker's ~66.8M - 2.9× the funnel top.

Find more apps with this revenue gap · Full Flo Ovulation & Period Tracker report

Side-by-side metrics

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

Zero: Fasting & Food Tracker
vs
Flo Ovulation & Period Tracker
Monthly revenue (est.)?
$2.80M
$4.04M
Annual revenue (est.)
$33.64M
$48.44M
Lifetime installs (est.)
66.8M
196.5M
Monthly active users (est.)?
8.7M
7.1M
App Store rating
4.82★
4.70★
Total ratings
445K
4.9M
US grossing rank
-
=
-
Cheapest monthly sub
$9.99
$9.95
IAP tiers detected
1 tiers
0 tiers

Zero: Fasting & Food Tracker

Zero Longevity Science, Inc.
App Store
Category
Health & Fitness
Price
Free
Released
Dec 23, 2016
Last updated
Apr 29, 2026
File size
210.2 MB
Content rating
17+
Version
7.6.0
Languages
English
View full Zero: Fasting & Food Tracker report →

Flo Ovulation & Period Tracker

Flo Health Inc.
Google Play
Category
Health & Fitness
Price
Free
Released
Apr 12, 2016
Last updated
May 6, 2026
File size
-
Content rating
Everyone
Version
VARY
Languages
-
View full Flo Ovulation & Period Tracker report →

Zero: Fasting & Food Tracker trajectory

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Flo Ovulation & Period Tracker trajectory

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FAQ

Which makes more money, Zero: Fasting & Food Tracker or Flo Ovulation & Period Tracker? v
Flo Ovulation & Period Tracker earns about $4.04M per month, while Zero: Fasting & Food Tracker earns about $2.80M. That is a 1.4× revenue gap (~$1.23M more per month for Flo Ovulation & Period Tracker). Annual revenue: Zero: Fasting & Food Tracker ≈ $33.64M/year, Flo Ovulation & Period Tracker ≈ $48.44M/year. Estimates are derived from public App Store / Google Play signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, Zero: Fasting & Food Tracker or Flo Ovulation & Period Tracker? v
Flo Ovulation & Period Tracker leads with about 196.5M estimated downloads vs 66.8M for Zero: Fasting & Food Tracker - a 2.9× gap. Zero: Fasting & Food Tracker's App Store downloads are estimated from 445K ratings × the standard 1:75 ratio. Flo Ovulation & Period Tracker reports 100,000,000+ installs on Google Play.
Are Zero: Fasting & Food Tracker and Flo Ovulation & Period Tracker in the same App Store category on each store 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 Zero: Fasting & Food Tracker and Flo Ovulation & Period Tracker offer? v
Zero: Fasting & Food Tracker: IAP range 1 tiers detected. Flo Ovulation & Period Tracker: IAP range $0.99 - $99.99 per item. Zero: Fasting & Food Tracker runs a "Subscription (~$9.99/mo)" monetization model; Flo Ovulation & Period Tracker runs "Subscription (~$9.95/mo)". Scraped tier prices and detected subscription pricing drive the bulk of the per-app revenue estimate above.
Which has better ratings, Zero: Fasting & Food Tracker or Flo Ovulation & Period Tracker? v
Zero: Fasting & Food Tracker edges ahead with ★ 4.8 vs ★ 4.7 (gap of 0.1 stars). Rating volume: Zero: Fasting & Food Tracker 445K ratings, Flo Ovulation & Period Tracker 56K ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these Zero: Fasting & Food Tracker vs Flo Ovulation & Period Tracker revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $2.80M for Zero: Fasting & Food Tracker and $4.04M for Flo Ovulation & Period Tracker are derived from App Store grossing rank / Google Play install ranges, 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 Zero: Fasting & Food Tracker or Flo Ovulation & Period Tracker to a different App Store app? v
Use the search box at the bottom of this page or paste any two App Store or Google Play 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.