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

Scan to PDF－Document Scanner

Scanner App PDF Tool
App Store
$179.8K/mo
~$2.16M/yr · 6.7M installs
VS

RailTest® Train Driver Prep

SkyTest®
Google Play
$54/mo
~$645/yr · 64 installs
Revenue winner Scan to PDF－Document Scanner wins +332811% vs other
Installs winner Scan to PDF－Document Scanner wins +10525353% vs other
MAU winner Scan to PDF－Document Scanner wins +11089217% 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 3329× more per month than RailTest® Train Driver Prep - $179.8K vs $54.
  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 ~64 - 105254.5× 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.)?
$179.8K
◀
$54
Annual revenue (est.)
$2.16M
◀
$645
Lifetime installs (est.)
6.7M
◀
64
Monthly active users (est.)?
795K
◀
7.168
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
Jun 23, 2026
File size
156.2 MB
Content rating
4+
Version
2.8.0
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

AugSepOctNovDecJanFebMarAprMayJunJul

RailTest® Train Driver Prep trajectory

AugSepOctNovDecJanFebMarAprMayJunJul

Related app pages

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

Related comparisons

Scan to PDF Document Scanner iOS vs Linkedin Community Network AndroidScan to PDF Document Scanner iOS vs Giga Miner Bitcoin Miner Cloud AndroidScan to PDF Document Scanner iOS vs Microsoft Authenticator AndroidScan to PDF Document Scanner iOS vs Microsoft Teams AndroidScan to PDF Document Scanner iOS vs Indeed Job Search AndroidScan to PDF Document Scanner iOS vs Invoice Simple Invoice Maker Android

Compare another pair

FAQ

Which makes more money, Scan to PDF－Document Scanner or RailTest® Train Driver Prep? v
Scan to PDF－Document Scanner earns about $179.8K per month, while RailTest® Train Driver Prep earns about $54. That is a 3329.1× revenue gap (~$179.7K more per month for Scan to PDF－Document Scanner). Annual revenue: Scan to PDF－Document Scanner ≈ $2.16M/year, RailTest® Train Driver Prep ≈ $645/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 64 for RailTest® Train Driver Prep - a 105254.5× 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 $179.8K for Scan to PDF－Document Scanner and $54 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.