Scan to PDF－Document Scanner vs RailTest® Train Driver Prep

Scan to PDF－Document Scanner

Scanner App PDF Tool
App Store
$178.6K/mo
~$2.14M/yr · 6.7M installs
VS

RailTest® Train Driver Prep

SkyTest®
Google Play
$53/mo
~$635/yr · 63 installs
Revenue winner Scan to PDF－Document Scanner wins +336966% vs other
Installs winner Scan to PDF－Document Scanner wins +10624329% vs other
MAU winner Scan to PDF－Document Scanner wins +11193494% vs other
Rating winner Scan to PDF－Document Scanner wins +470% vs other

Why Scan to PDF－Document Scanner is winning

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

  1. Scan to PDF－Document Scanner earns roughly 3371× more per month than RailTest® Train Driver Prep - $178.6K vs $53.
  2. Subscription model. Scan to PDF－Document Scanner runs a $4.99/mo subscription that compounds; RailTest® Train Driver Prep relies on one-shot IAP or ads.
  3. Bigger install base. Scan to PDF－Document Scanner has ~6.7M lifetime installs vs RailTest® Train Driver Prep's ~63 - 106244.3× the funnel top.
  4. More monetization surfaces. Scan to PDF－Document Scanner runs 10 IAP tiers vs 0 - more chances to convert users at the right price.

→ Find more apps with this revenue gap · Full Scan to PDF－Document Scanner report

Side-by-side metrics

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

Scan to PDF－Document Scanner
vs
RailTest® Train Driver Prep
Monthly revenue (est.)?
$178.6K
◀
$53
Annual revenue (est.)
$2.14M
◀
$635
Lifetime installs (est.)
6.7M
◀
63
Monthly active users (est.)?
790K
◀
7.056
App Store rating
4.70★
◀
-
Total ratings
61K
◀
0
US grossing rank
-
=
-
Cheapest monthly sub
$4.99
◀
No sub
IAP tiers detected
10 tiers
◀
0 tiers

Scan to PDF－Document Scanner

Scanner App PDF Tool
App Store
Category
Business
Price
Free
Released
Aug 5, 2021
Last updated
May 5, 2026
File size
152.3 MB
Content rating
4+
Version
2.6.0
Languages
Arabic, Danish, Dutch, English, French, German +17 more
View full Scan to PDF－Document Scanner report →

RailTest® Train Driver Prep

SkyTest®
Google Play
Category
Business
Price
USD69.99
Released
Nov 8, 2020
Last updated
Dec 22, 2025
File size
-
Content rating
Everyone
Version
3.1.27
Languages
-
View full RailTest® Train Driver Prep report →

Scan to PDF－Document Scanner trajectory

JunJulAugSepOctNovDecJanFebMarAprMay

RailTest® Train Driver Prep trajectory

JunJulAugSepOctNovDecJanFebMarAprMay

Related app pages

Scan to PDF－Document Scanner App Store page →RailTest® Train Driver Prep Play Store page →

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FAQ

Which makes more money, Scan to PDF－Document Scanner or RailTest® Train Driver Prep? v
Scan to PDF－Document Scanner earns about $178.6K per month, while RailTest® Train Driver Prep earns about $53. That is a 3370.7× revenue gap (~$178.6K more per month for Scan to PDF－Document Scanner). Annual revenue: Scan to PDF－Document Scanner ≈ $2.14M/year, RailTest® Train Driver Prep ≈ $635/year. Estimates are derived from public App Store / Google Play signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, Scan to PDF－Document Scanner or RailTest® Train Driver Prep? v
Scan to PDF－Document Scanner leads with about 6.7M estimated downloads vs 63 for RailTest® Train Driver Prep - a 106244.3× gap. Scan to PDF－Document Scanner's App Store downloads are estimated from 61K ratings × the standard 1:75 ratio. RailTest® Train Driver Prep reports 50+ installs on Google Play.
Are Scan to PDF－Document Scanner and RailTest® Train Driver Prep in the same App Store category on each store and competing for the same money? v
Yes - both apps sit in the Business 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 Scan to PDF－Document Scanner and RailTest® Train Driver Prep offer? v
Scan to PDF－Document Scanner: IAP range 10 tiers detected. RailTest® Train Driver Prep: no IAP detected on the public listing. Scan to PDF－Document Scanner runs a "Subscription (~$6.99/mo)" monetization model; RailTest® Train Driver Prep runs "Paid app ($69.99)". Scraped tier prices and detected subscription pricing drive the bulk of the per-app revenue estimate above.
Which has better ratings, Scan to PDF－Document Scanner or RailTest® Train Driver Prep? v
Scan to PDF－Document Scanner edges ahead with a higher overall score (gap of 4.7 stars). Rating volume: Scan to PDF－Document Scanner 61K ratings, RailTest® Train Driver Prep 0 ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these Scan to PDF－Document Scanner vs RailTest® Train Driver Prep revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $178.6K for Scan to PDF－Document Scanner and $53 for RailTest® Train Driver Prep are derived from App Store grossing rank / Google Play install ranges, scraped IAP tiers, ratings volume and category benchmarks (Business) - 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 Scan to PDF－Document Scanner or RailTest® Train Driver Prep 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.