John E. Hartzog
Every John E. Hartzog app we track, ranked by estimated monthly revenue — portfolio-level reach and per-app estimates from live App Store signals.
| Apps tracked | 2 |
|---|---|
| Est. portfolio revenue / mo | ~$82 |
| Est. portfolio downloads / mo | ~292 |
| Total ratings | 272 |
| Data updated | 02.08.2026 |
Downloads / mo · WW
50–300
Revenue / mo · WW
$20–$400
★4.3(110)Released 01.04.2009
Downloads / mo · WW
80–400
Revenue / mo · WW
$0
★3.7(162)Released 01.04.2009