Data updated: July 2026
Kostas Sidiro ✓
@kostassidiro · Instagram · GR · fitness
About Kostas Sidiro
@kostassidiro's followers & following
@kostassidiro currently has 73,014 followers on Instagram and follows 979 accounts, a follower-to-following ratio of 74.58. That places the account in the micro tier of fitness creators.
@kostassidiro's content
@kostassidiro has published 711 posts to date, working across reels, long-form-video, stories, live-streams. The account's content is classified under fitness, gym, wellness. Bio: “The Greek Challenger 🇬🇷 @mad_gym Προγράμματα Γυμναστικής για ΟΛΟΥΣ ⬇️”
AI quality check on @kostassidiro
Zaver's AI analyzed this account across 20+ parameters before listing it publicly. No blocking issues were detected in our standard screening.
- Audience location & demographics
- Engagement quality & authenticity
- Follower growth patterns
- Signs of purchased followers
- Content niche classification
- Brand safety screening
- Posting activity & consistency
- Language & audience fit
@kostassidiro's rankings on Zaver
Based on follower count among creators that passed Zaver's indexing quality bar.
@kostassidiro's audience
Audience snapshot
60% male · 40% female
Core age group25-34
Collaboration pricing
Price tierstandard
Get the AI fair-price estimate → free trialWhich brands fit Kostas Sidiro?
Frequently asked questions
How many Instagram followers does @kostassidiro have?
As of July 2026, @kostassidiro has 73,014 followers (73K) on Instagram, follows 979 accounts, and has published 711 posts. Zaver refreshes these numbers on a rolling basis.
How do I contact @kostassidiro?
Verified contact details for @kostassidiro — including business email where available — are held in Zaver, alongside contacts for 77M+ other Instagram creators. Zaver users can unlock them instantly and reach out with AI-personalized outreach. Unlock @kostassidiro's contact info — free trial →
How much does @kostassidiro charge for a sponsored post?
@kostassidiro sits in the standard price tier on Zaver, based on follower scale, engagement and niche. Zaver's AI pricing model also produces a fair per-post price range with justification, so brands can negotiate from data instead of guessing. Get the AI fair-price estimate →
What is @kostassidiro's net worth?
@kostassidiro's net worth isn't publicly verified, and Zaver doesn't estimate personal wealth. What can be assessed is sponsored-post earning potential: with 73K followers and a standard price tier in fitness, brand collaborations are a meaningful income stream — Zaver's AI pricing model estimates what each placement is worth. See the earning-potential estimate →
Does @kostassidiro have fake followers?
Zaver's AI authenticity check scores @kostassidiro 96/100, based on 20+ signals including engagement quality, follower growth patterns and signs of purchased followers. That indicates a predominantly genuine audience. Run the full authenticity check →
Who follows @kostassidiro?
@kostassidiro's 73K followers skew 60% male / 40% female, core age group 25-34. Full audience breakdowns — age bands, gender split and country-level distribution — are part of @kostassidiro's report on Zaver.
Which influencers are similar to @kostassidiro?
Zaver lists comparable fitness creators in Greece in the "Influencers like @kostassidiro" section on this page, matched by niche, audience size and engagement. Zaver users can also search all 39,215 vetted fitness creators with plain-English queries.
