GMX - Mail & Cloud vs Zello PTT Walkie Talkie

GMX - Mail & Cloud

GMX
Google Play
$535.7K/mo
~$6.43M/yr · 23.6M installs
VS

Zello PTT Walkie Talkie

Zello Inc
Google Play
$9.45M/mo
~$113.45M/yr · 120.6M installs
Revenue winner Zello PTT Walkie Talkie wins +1665% vs other
Installs winner Zello PTT Walkie Talkie wins +411% vs other
MAU winner Zello PTT Walkie Talkie wins +132% vs other
Rating winner GMX - Mail & Cloud wins +8% vs other

Why Zello PTT Walkie Talkie is winning

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

  1. Zello PTT Walkie Talkie earns roughly 18× more per month than GMX - Mail & Cloud - $9.45M vs $535.7K.
  2. Premium pricing. Zello PTT Walkie Talkie charges $77.41/mo vs GMX - Mail & Cloud's $8.32/mo - higher ARPU per converted user.
  3. Bigger install base. Zello PTT Walkie Talkie has ~120.6M lifetime installs vs GMX - Mail & Cloud's ~23.6M - 5.1× the funnel top.

Find more apps with this revenue gap · Full Zello PTT Walkie Talkie report

Side-by-side metrics

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

GMX - Mail & Cloud
vs
Zello PTT Walkie Talkie
Monthly revenue (est.)?
$535.7K
$9.45M
Annual revenue (est.)
$6.43M
$113.45M
Lifetime installs (est.)
23.6M
120.6M
Monthly active users (est.)?
3.9M
9.0M
App Store rating
4.50★
4.16★
Total ratings
818K
770K
US grossing rank
-
=
-
Cheapest monthly sub
$8.32
$77.41
IAP tiers detected
0 tiers
=
0 tiers

GMX - Mail & Cloud

GMX
Google Play
Category
Communication
Price
Free
Released
Jul 1, 2010
Last updated
Apr 29, 2026
File size
-
Content rating
Everyone
Version
VARY
Languages
-
View full GMX - Mail & Cloud report →

Zello PTT Walkie Talkie

Zello Inc
Google Play
Category
Communication
Price
Free
Released
Jul 25, 2011
Last updated
May 1, 2026
File size
-
Content rating
Everyone
Version
7.7.1
Languages
-
View full Zello PTT Walkie Talkie report →

GMX - Mail & Cloud trajectory

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Zello PTT Walkie Talkie trajectory

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FAQ

Which makes more money, GMX - Mail & Cloud or Zello PTT Walkie Talkie? v
Zello PTT Walkie Talkie earns about $9.45M per month, while GMX - Mail & Cloud earns about $535.7K. That is a 17.6× revenue gap (~$8.92M more per month for Zello PTT Walkie Talkie). Annual revenue: GMX - Mail & Cloud ≈ $6.43M/year, Zello PTT Walkie Talkie ≈ $113.45M/year. Estimates are derived from public Google Play signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, GMX - Mail & Cloud or Zello PTT Walkie Talkie? v
Zello PTT Walkie Talkie leads with about 120.6M estimated downloads vs 23.6M for GMX - Mail & Cloud - a 5.1× gap. GMX - Mail & Cloud reports 10,000,000+ installs on Google Play. Zello PTT Walkie Talkie reports 100,000,000+ installs on Google Play.
Are GMX - Mail & Cloud and Zello PTT Walkie Talkie in the same Google Play category and competing for the same money? v
Yes - both apps sit in the Communication 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 GMX - Mail & Cloud and Zello PTT Walkie Talkie offer? v
GMX - Mail & Cloud: IAP range $0.99 - $69.99 per item. Zello PTT Walkie Talkie: IAP range $7.99 - $749.99 per item. GMX - Mail & Cloud runs a "Subscription (~$8.32/mo)" monetization model; Zello PTT Walkie Talkie runs "Subscription (~$77.41/mo)". Scraped tier prices and detected subscription pricing drive the bulk of the per-app revenue estimate above.
Which has better ratings, GMX - Mail & Cloud or Zello PTT Walkie Talkie? v
GMX - Mail & Cloud edges ahead with ★ 4.5 vs ★ 4.2 (gap of 0.3 stars). Rating volume: GMX - Mail & Cloud 3K ratings, Zello PTT Walkie Talkie 43K ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these GMX - Mail & Cloud vs Zello PTT Walkie Talkie revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $535.7K for GMX - Mail & Cloud and $9.45M for Zello PTT Walkie Talkie are derived from Google Play grossing rank, scraped IAP tiers, ratings volume and category benchmarks (Communication) - 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 GMX - Mail & Cloud or Zello PTT Walkie Talkie to a different Google Play app? v
Use the search box at the bottom of this page or paste any two 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.