Update:
In March I uploaded two more iOS apps. Actually I planned to upload 4, but I was quite busy, had a crazy schedule.
Also, updated 4-5 apps. Two of them had a major update. Instead of normal interstitial ads, I changed it to rewarded ads. This almost doubled the ad revenue for them. Yes, rewarded video ads have a much higher eCPM than interstital ads, almost double.
Ad Earnings: $2600
Admob Account 1: $1000 (it wasn't showing ads for 1-2 days, because my website where the app-ads.txt is was down and the fill rate decreased to 40% for this time frame)
Admob Account 2: $1400 (as I said, slight increase cuz of two apps that show rewarded ads instead of interstitial + 2 new apps)
Other ad networks (AppLovin, Unity, Meta): $200-250
IAP: $9750
Total Earnings: $12350
Spendings: $1800
This month the spendings increased, because I tried different stuff, tried different ad formats, creatives and so on.
Google Ads: $1400
Apple Search Ads: $250
Keyword Installs: $150
Total Profit: $10550
Whats next?
This month I want to upload 4 apps, but most importantly: This month I finally want to start with a huge social media campaign.
To be honest: I haven't spend much time yet creating creatives/videos for TikTok, etc. but I should definitely do it. I think my niche and apps would totally fit for this kind of marketing.
Also, I plan to spend way more money for ads. I want to spend around $3000 on ads. So my plan is to create videos for TikTok, IG, etc. first, then see which one engages/converts the best and then I will use them for paid ads.
Additional to that, I plan to spend around $500 for keyword installs.