Amazon Kindle: Reading App vs Whillo

Amazon Kindle: Reading App

AMZN Mobile LLC
App Store
$0/mo
~$0/yr · 513.1M installs
VS

Whillo

1855543 Alberta Inc.
App Store
$17/mo
~$203/yr · 750 installs
Revenue winner Whillo wins +1700% vs other
Installs winner Amazon Kindle: Reading App wins +68416748% vs other
MAU winner Amazon Kindle: Reading App wins +5701304% vs other
Rating winner Whillo wins +0% vs other

Why Whillo is winning

Top 3 reasons - backed by the public App Store / Play Store numbers.

  1. Whillo earns roughly 17× more per month than Amazon Kindle: Reading App - $17 vs $0.
  2. Subscription model. Whillo runs a $8.99/mo subscription that compounds; Amazon Kindle: Reading App relies on one-shot IAP or ads.
  3. More monetization surfaces. Whillo runs 10 IAP tiers vs 0 - more chances to convert users at the right price.

Find more apps with this revenue gap · Full Whillo report

Side-by-side metrics

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

Amazon Kindle: Reading App
vs
Whillo
Monthly revenue (est.)?
$0
$17
Annual revenue (est.)
$0
$203
Lifetime installs (est.)
513.1M
750
Monthly active users (est.)?
5.1M
90
App Store rating
4.86★
4.87★
Total ratings
5.7M
15
US grossing rank
-
=
-
Cheapest monthly sub
No sub
$8.99
IAP tiers detected
0 tiers
10 tiers

Amazon Kindle: Reading App

AMZN Mobile LLC
App Store
Category
Book
Price
Free
Released
Mar 4, 2009
Last updated
Jun 30, 2026
File size
188.6 MB
Content rating
12+
Version
7.62
Languages
Dutch, English, French, German, Italian, Japanese +4 more
View full Amazon Kindle: Reading App report →

Whillo

1855543 Alberta Inc.
App Store
Category
Book
Price
Free
Released
May 22, 2022
Last updated
Jan 16, 2026
File size
33.6 MB
Content rating
4+
Version
35.1.1
Languages
English
View full Whillo report →

Amazon Kindle: Reading App trajectory

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Whillo trajectory

AugSepOctNovDecJanFebMarAprMayJunJul

FAQ

Which makes more money, Amazon Kindle: Reading App or Whillo? v
Whillo earns about $17 per month, while Amazon Kindle: Reading App earns about $0. That is a ∞× revenue gap (~$17 more per month for Whillo). Annual revenue: Amazon Kindle: Reading App ≈ $0/year, Whillo ≈ $203/year. Estimates are derived from public App Store signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, Amazon Kindle: Reading App or Whillo? v
Amazon Kindle: Reading App leads with about 513.1M estimated downloads vs 750 for Whillo - a 684168.5× gap. Amazon Kindle: Reading App's App Store downloads are estimated from 5.7M ratings × the standard 1:75 ratio. Whillo's App Store downloads are estimated from 15 ratings.
Are Amazon Kindle: Reading App and Whillo in the same App Store category and competing for the same money? v
Yes - both apps sit in the Book 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 Amazon Kindle: Reading App and Whillo offer? v
Amazon Kindle: Reading App: no IAP detected on the public listing. Whillo: IAP range 10 tiers detected. Amazon Kindle: Reading App runs a "No App Store revenue (monetizes off-store)" monetization model; Whillo runs "Subscription (~$5.83/mo)". Scraped tier prices and detected subscription pricing drive the bulk of the per-app revenue estimate above.
Which has better ratings, Amazon Kindle: Reading App or Whillo? v
Whillo edges ahead with ★ 4.9 vs ★ 4.9 (gap of 0.0 stars). Rating volume: Amazon Kindle: Reading App 5.7M ratings, Whillo 15 ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these Amazon Kindle: Reading App vs Whillo revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $0 for Amazon Kindle: Reading App and $17 for Whillo are derived from App Store grossing rank, scraped IAP tiers, ratings volume and category benchmarks (Book) - 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 Amazon Kindle: Reading App or Whillo 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.