Quo (formerly OpenPhone) vs Invoice Simple: Invoice Maker
Quo (formerly OpenPhone)
OpenPhone Technologies Inc
App Store
$43.6K/mo
~$522.9K/yr · 1.2M installs
VS
Invoice Simple: Invoice Maker
Invoice Simple
Google Play
$273.5K/mo
~$3.28M/yr · 7.4M installs
Revenue winner
Invoice Simple: Invoice Maker wins
+528% vs other
Installs winner
Invoice Simple: Invoice Maker wins
+532% vs other
MAU winner
Invoice Simple: Invoice Maker wins
+227% vs other
Rating winner
Invoice Simple: Invoice Maker wins
+9% vs other
Why Invoice Simple: Invoice Maker is winning
Top 4 reasons - backed by the public App Store / Play Store numbers.
- Invoice Simple: Invoice Maker earns roughly 6× more per month than Quo (formerly OpenPhone) - $273.5K vs $43.6K.
- Subscription model. Invoice Simple: Invoice Maker runs a $44.68/mo subscription that compounds; Quo (formerly OpenPhone) relies on one-shot IAP or ads.
- Bigger install base. Invoice Simple: Invoice Maker has ~7.4M lifetime installs vs Quo (formerly OpenPhone)'s ~1.2M - 6.3× the funnel top.
- Better app store reviews. Invoice Simple: Invoice Maker sits at 4.82★ vs 4.44★ - store algorithms reward higher-rated apps with more impressions.
→ Find more apps with this revenue gap · Full Invoice Simple: Invoice Maker report
Side-by-side metrics
Bars scale to whichever app is bigger on that row. Green = winner.
Quo (formerly OpenPhone)
vs
Invoice Simple: Invoice Maker
Monthly revenue (est.)?
$43.6K
▶
$273.5K
Annual revenue (est.)
$522.9K
▶
$3.28M
Lifetime installs (est.)
1.2M
▶
7.4M
Monthly active users (est.)?
136K
▶
446K
App Store rating
4.44★
▶
4.82★
Total ratings
11K
▶
167K
US grossing rank
-
=
-
Cheapest monthly sub
No sub
▶
$44.68
IAP tiers detected
5 tiers
◀
0 tiers
- Category
- Business
- Price
- Free
- Released
- Sep 22, 2017
- Last updated
- May 5, 2026
- File size
- 121.0 MB
- Content rating
- 4+
- Version
- 4.0.21
- Languages
- English
- Category
- Business
- Price
- Free
- Released
- Feb 1, 2013
- Last updated
- May 1, 2026
- File size
- -
- Content rating
- Everyone
- Version
- 6.1.6
- Languages
- -
Quo (formerly OpenPhone) trajectory
Invoice Simple: Invoice Maker trajectory
FAQ
Which makes more money, Quo (formerly OpenPhone) or Invoice Simple: Invoice Maker? v
Invoice Simple: Invoice Maker earns about $273.5K per month, while Quo (formerly OpenPhone) earns about $43.6K. That is a 6.3× revenue gap (~$229.9K more per month for Invoice Simple: Invoice Maker). Annual revenue: Quo (formerly OpenPhone) ≈ $522.9K/year, Invoice Simple: Invoice Maker ≈ $3.28M/year. Estimates are derived from public App Store / Google Play signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, Quo (formerly OpenPhone) or Invoice Simple: Invoice Maker? v
Invoice Simple: Invoice Maker leads with about 7.4M estimated downloads vs 1.2M for Quo (formerly OpenPhone) - a 6.3× gap. Quo (formerly OpenPhone)'s App Store downloads are estimated from 11K ratings × the standard 1:75 ratio. Invoice Simple: Invoice Maker reports 5,000,000+ installs on Google Play.
Are Quo (formerly OpenPhone) and Invoice Simple: Invoice Maker 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 Quo (formerly OpenPhone) and Invoice Simple: Invoice Maker offer? v
Quo (formerly OpenPhone): IAP range 5 tiers detected. Invoice Simple: Invoice Maker: IAP range $4.99 - $399.99 per item. Quo (formerly OpenPhone) runs a "Free + one-time IAP (5 tiers)" monetization model; Invoice Simple: Invoice Maker runs "Subscription (~$44.68/mo)". Scraped tier prices and detected subscription pricing drive the bulk of the per-app revenue estimate above.
Which has better ratings, Quo (formerly OpenPhone) or Invoice Simple: Invoice Maker? v
Invoice Simple: Invoice Maker edges ahead with ★ 4.8 vs ★ 4.4 (gap of 0.4 stars). Rating volume: Quo (formerly OpenPhone) 11K ratings, Invoice Simple: Invoice Maker 22K ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these Quo (formerly OpenPhone) vs Invoice Simple: Invoice Maker revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $43.6K for Quo (formerly OpenPhone) and $273.5K for Invoice Simple: Invoice Maker 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 Quo (formerly OpenPhone) or Invoice Simple: Invoice Maker 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.