Starter Story · 2026-08-09

I Copied A Huge App. Now I Make $80K/Month

Tomer, a former marketer, built Cal Buddy, a Hebrew AI calorie tracker modeled on Cal AI, for the Israeli market using Cursor (about two months to App Store). Launched June 2025 at ~$1K/month, it reached ~$20K/month in four months via paid ads with creatives modeled on viral US-app and Israeli fitness content, then ~$81K/month by April 2026 after a revenue-share partnership with a well-known Israeli fitness influencer covering all Israeli revenue.

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3 tactics

Cal Buddy · B2C · Hebrew AI calorie tracker

Rebuild a hit US app in Hebrew for Israel, where no one offers it

$1K first month to $81K/month within about 10 months

“the chance to take a proven winner and be the first to localize it to my local market was the simplest zero-to-one move for me, the way I saw it.”

Workedlocalizationmarket-selection

Starter Story · 2026-08-09

Cal Buddy · B2C · Hebrew AI calorie tracker

Copy the most viral content from similar US apps and local fitness creators into ads

About $20K/month within four months of launch

“For me, it was paid ads. CPMs are significantly lower than in the US, so you can run paid ads profitably without a ton of testing capital.”

Workedpaid-social

Starter Story · 2026-08-09

Cal Buddy · B2C · Hebrew AI calorie tracker

Give big fitness influencers a cut of revenue instead of paying per post

Took revenue from $20K to $80K+ a month

“So, I came up with a better idea: partnering with big influencers. They get a percentage of the revenue, and as a result, the incentives are aligned.”

Workedinfluencerpartnerships

Starter Story · 2026-08-09

Numbers mentioned

Subject	Metric	Value	Quote
Cal Buddy	revenue first month after launch	USD 1,000/month approximate	“We started with only 1k on the first month, and since then we grew consistently until the previous month, we made over 81k.”
Cal Buddy	revenue over $81K in April 2026 (title: $80K/month)	USD 81K/month approximate	“We started with only 1k on the first month, and since then we grew consistently until the previous month, we made over 81k.”
Cal Buddy	revenue reached ~4 months after launch, from paid ads alone	USD 20K/month approximate	“That got me to around 20k per month in four months.”
Cal Buddy	time to milestone launch to ~$20K/month via paid ads	4 months approximate	“That got me to around 20k per month in four months.”
Cal Buddy	time to milestone first line of code to live on App Store (working version in 2 weeks with Cursor; Apple developer approval and reviews were the bottleneck)	2 months approximate	“From the first line of code to being live on the App Store, it was around two months total.”
Cal Buddy	commission rate influencer rev share on all Israeli revenue; negotiated after reaching $20K/month	less than 50% (better than 50-50 terms) approximate	“So, another advantage of me waiting to making 20k per month before approaching them that I can negotiate a better deal and not act like it was from the get-go so they get 50-50.”
Cal AI	revenue as described on a podcast by Cal AI founder Zach, heard by Tomer	USD 1M/month approximate	“I stumbled upon a podcast with Zach, the founder of Cal AI and he talked about how they scaled quickly to over $1 million per month”