Harmony: Cycle Syncing, Period vs Stylebook

Harmony: Cycle Syncing, Period

Rocapine
App Store
$24.4K/mo
~$292.2K/yr · 637K installs
VS

Stylebook

left brain / right brain, LLC
App Store
$91.5K/mo
~$1.10M/yr · 688K installs
Revenue winner Stylebook wins +276% vs other
Installs winner Stylebook wins +8% vs other
MAU winner Stylebook wins +8% vs other
Rating winner Harmony: Cycle Syncing, Period wins +1% vs other

Why Stylebook is winning

Top 1 reasons - backed by the public App Store / Play Store numbers.

  1. Stylebook earns roughly 4× more per month than Harmony: Cycle Syncing, Period - $91.5K vs $24.4K.

Find more apps with this revenue gap · Full Stylebook report

Side-by-side metrics

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

Harmony: Cycle Syncing, Period
vs
Stylebook
Monthly revenue (est.)?
$24.4K
$91.5K
Annual revenue (est.)
$292.2K
$1.10M
Lifetime installs (est.)
637K
688K
Monthly active users (est.)?
75K
81K
App Store rating
4.74★
4.67★
Total ratings
8K
9K
US grossing rank
-
=
-
Cheapest monthly sub
$9.99
No sub
IAP tiers detected
8 tiers
0 tiers

Harmony: Cycle Syncing, Period

Rocapine
App Store
Category
Lifestyle
Price
Free
Released
Nov 14, 2024
Last updated
May 7, 2026
File size
215.6 MB
Content rating
4+
Version
2.14.3
Languages
English
View full Harmony: Cycle Syncing, Period report →

Stylebook

left brain / right brain, LLC
App Store
Category
Lifestyle
Price
USD4.99
Released
Oct 29, 2009
Last updated
Jun 15, 2025
File size
20.4 MB
Content rating
9+
Version
10.1
Languages
English, French, Japanese, Portuguese, Chinese, Spanish
View full Stylebook report →

Harmony: Cycle Syncing, Period trajectory

JunJulAugSepOctNovDecJanFebMarAprMay

Stylebook trajectory

JunJulAugSepOctNovDecJanFebMarAprMay

FAQ

Which makes more money, Harmony: Cycle Syncing, Period or Stylebook? v
Stylebook earns about $91.5K per month, while Harmony: Cycle Syncing, Period earns about $24.4K. That is a 3.8× revenue gap (~$67.1K more per month for Stylebook). Annual revenue: Harmony: Cycle Syncing, Period ≈ $292.2K/year, Stylebook ≈ $1.10M/year. Estimates are derived from public App Store signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, Harmony: Cycle Syncing, Period or Stylebook? v
Stylebook leads with about 688K estimated downloads vs 637K for Harmony: Cycle Syncing, Period - a 1.1× gap. Harmony: Cycle Syncing, Period's App Store downloads are estimated from 8K ratings × the standard 1:75 ratio. Stylebook's App Store downloads are estimated from 9K ratings.
Are Harmony: Cycle Syncing, Period and Stylebook in the same App Store category and competing for the same money? v
Yes - both apps sit in the Lifestyle 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 Harmony: Cycle Syncing, Period and Stylebook offer? v
Harmony: Cycle Syncing, Period: IAP range 8 tiers detected. Stylebook: no IAP detected on the public listing. Harmony: Cycle Syncing, Period runs a "Subscription (~$9.99/mo)" monetization model; Stylebook runs "Paid app ($4.99)". Scraped tier prices and detected subscription pricing drive the bulk of the per-app revenue estimate above.
Which has better ratings, Harmony: Cycle Syncing, Period or Stylebook? v
Harmony: Cycle Syncing, Period edges ahead with ★ 4.7 vs ★ 4.7 (gap of 0.1 stars). Rating volume: Harmony: Cycle Syncing, Period 8K ratings, Stylebook 9K ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these Harmony: Cycle Syncing, Period vs Stylebook revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $24.4K for Harmony: Cycle Syncing, Period and $91.5K for Stylebook are derived from App Store grossing rank, scraped IAP tiers, ratings volume and category benchmarks (Lifestyle) - 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 Harmony: Cycle Syncing, Period or Stylebook 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.