ChatGPT vs Shift Work Calendar
ChatGPT
OpenAI OpCo, LLC
App Store
$177.06M/mo
~$2.12B/yr · 1.2B installs
VS
Shift Work Calendar
Shwoca Technologies Ltd
App Store
$57/mo
~$680/yr · 650 installs
Revenue winner
ChatGPT wins
+310627832% vs other
Installs winner
ChatGPT wins
+184615285% vs other
MAU winner
ChatGPT wins
+328497026% vs other
Rating winner
ChatGPT wins
+26% vs other
Why ChatGPT is winning
Top 4 reasons - backed by the public App Store / Play Store numbers.
- ChatGPT earns roughly 3106279× more per month than Shift Work Calendar - $177.06M vs $57.
- Subscription model. ChatGPT runs a $8.33/mo subscription that compounds; Shift Work Calendar relies on one-shot IAP or ads.
- Bigger install base. ChatGPT has ~1.2B lifetime installs vs Shift Work Calendar's ~650 - 1846153.8× the funnel top.
- More monetization surfaces. ChatGPT runs 5 IAP tiers vs 1 - more chances to convert users at the right price.
→ Find more apps with this revenue gap · Full ChatGPT report
Side-by-side metrics
Bars scale to whichever app is bigger on that row. Green = winner.
ChatGPT
vs
Shift Work Calendar
Monthly revenue (est.)?
$177.06M
◀
$57
Annual revenue (est.)
$2.12B
◀
$680
Lifetime installs (est.)
1.2B
◀
650
Monthly active users (est.)?
600.0M
◀
182.65
App Store rating
4.84★
◀
3.85★
Total ratings
7.0M
◀
13
US grossing rank
#1
◀
-
Cheapest monthly sub
$8.33
◀
No sub
IAP tiers detected
5 tiers
◀
1 tiers
- Category
- Productivity
- Price
- Free
- Released
- May 18, 2023
- Last updated
- May 6, 2026
- File size
- 197.9 MB
- Content rating
- 12+
- Version
- 1.2026.118
- Languages
- SQ, AM, Arabic, HY, BN, BS +54 more
- Category
- Productivity
- Price
- Free
- Released
- Jul 9, 2020
- Last updated
- Apr 17, 2026
- File size
- 5.9 MB
- Content rating
- 4+
- Version
- 1.7
- Languages
- English, French, German, Spanish
ChatGPT trajectory
Shift Work Calendar trajectory
FAQ
Which makes more money, ChatGPT or Shift Work Calendar? v
ChatGPT earns about $177.06M per month, while Shift Work Calendar earns about $57. That is a 3106279.3× revenue gap (~$177.06M more per month for ChatGPT). Annual revenue: ChatGPT ≈ $2.12B/year, Shift Work Calendar ≈ $680/year. Estimates are derived from public App Store signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, ChatGPT or Shift Work Calendar? v
ChatGPT leads with about 1.2B estimated downloads vs 650 for Shift Work Calendar - a 1846153.8× gap. ChatGPT's App Store downloads are estimated from 7.0M ratings × the standard 1:75 ratio. Shift Work Calendar's App Store downloads are estimated from 13 ratings.
Are ChatGPT and Shift Work Calendar in the same App Store category and competing for the same money? v
Yes - both apps sit in the Productivity 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 ChatGPT and Shift Work Calendar offer? v
ChatGPT: IAP range 5 tiers detected. Shift Work Calendar: IAP range 1 tiers detected. ChatGPT runs a "Subscription (~$8.33/mo, ai) · calibrated by US grossing rank #1" monetization model; Shift Work Calendar runs "Free + one-time IAP (1 tiers)". Scraped tier prices and detected subscription pricing drive the bulk of the per-app revenue estimate above.
Which has better ratings, ChatGPT or Shift Work Calendar? v
ChatGPT edges ahead with ★ 4.8 vs ★ 3.8 (gap of 1.0 stars). Rating volume: ChatGPT 7.0M ratings, Shift Work Calendar 13 ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these ChatGPT vs Shift Work Calendar revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $177.06M for ChatGPT and $57 for Shift Work Calendar are derived from App Store grossing rank, scraped IAP tiers, ratings volume and category benchmarks (Productivity) - 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 ChatGPT or Shift Work Calendar 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.