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Compare Appus Studio vs Keystone Seo Solution

Side-by-side comparison of features, pricing, services, ratings and more.

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Appus Studio Agency logo

Appus Studio

Web Development & Technology Website

Full-cycle mobile app and web development company with an in-house team in Kharkiv, Ukraine. Founded in 2009, Appus Studio designs and develops iOS, Android, and web applications.

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Keystone Seo Solution Agency logo

Keystone Seo Solution

Data & Analytics Website

Keystone Seo Solution is a Lviv-based digital marketing agency founded in 2017. Its services include SEO, social media marketing, PPC, CRO, web development, web design, business consulting, and market research.

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Feature Comparison

Attribute Appus Studio Keystone Seo Solution
Category Web Development & Technology Data & Analytics
Rating
Winner +5.0 higher
-
Location Kharkiv, Ukraine Lviv, Ukraine
Services
  • Mobile App Development
  • Web Development
  • Software Development
  • Digital Marketing
  • SEO
  • eCommerce
  • Advertising
  • WordPress Website Design
  • Web Design
  • Business Consulting
  • Market Research
  • Mobile App Development
  • Web Development
  • Software Development
  • Digital Marketing
  • SEO
  • eCommerce
  • Advertising
  • WordPress Website Design
  • Web Design
  • Business Consulting
  • Market Research
Industries
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Dental Design eCommerce Education Food and Beverage Health Care Legal Insurance
Pros
  • All development performed in-house with no third-party outsourcing
  • Dedicated QA manager and project manager per project with non-billable time
  • One-year warranty and free app store upload included
  • Clients report strong project management, communication, and technical execution
  • Provides SEO, SMM, PPC, CRO, and broader digital marketing services
  • Supports technical, international, multilingual, construction, and insurance SEO
  • Works with small and medium businesses across multiple industries
  • Offers web development and design expertise across WordPress, Angular, Laravel, Next.js, React.JS, VueJS, and other platforms
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Free Plan Available

You shouldn’t have to overpay for cold email tools. With Mystrika, you won’t.

It does cold email warmup, sequences, unified inbox, and AI writing - all in one place. Every other tool that does this charges somewhere between $100 and $500 a month. Mystrika has a free plan. 500 prospects. No expiry. No card.

The people who consistently book meetings from cold email aren’t smarter. They just stopped leaving money on the table.

See the Free Plan