# 4 = 1 vs Estad The clearest difference is device support: Estad at 3 against 4 = 1's 1. Estad also leads on iOS requirement (14.0 vs 16.0). On price, ads and in-app purchases there is nothing between them. Both are free to download. Neither carries in-app purchases, so what you see is what you pay. ## The numbers | Metric | 4 = 1 | Estad | | --- | --- | --- | | Price | Free | Free | | Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/estad-mentorship-simplified/id6759800839/reviews)** | | Number of ratings | — | **4** | | In-app purchases | No | No | | Ads | No | No | | Update frequency | Monthly | — | | Monetization | — | Free | | Size | 0 MB | 31 MB | | Requires iOS | 16.0 | **14.0** | | Devices | iPhone | **iPhone, iPad, iPod** | | Age rating | 4+ | 4+ | | Developer | [Zoe Cutler](https://appshunter.io/developer/1616556209) | [Ali Asfar](https://appshunter.io/developer/1865280803) | ## What reviewers say ### 4 = 1 [App page](https://appshunter.io/ios/app/4-1-math-game/id6479671530) **Features:** macOS Compatibility **In-app purchases:** none ### Estad [App page](https://appshunter.io/ios/app/estad-mentorship-simplified/id6759800839) This platform simplifies finding mentors through a smart matching system. It connects students, founders, and professionals with mentors based on compatibility, goals, and experience, eliminating cold outreach for direct, meaningful connections. **Highlights:** Instant mentor discovery, Smart compatibility matching, Skip cold outreach, Build one-on-one connections, Accelerated growth with tailored guidance **Features:** macOS Compatibility **In-app purchases:** none ## Frequently asked questions ### Is 4 = 1 free? 4 = 1 is free to download, with no in-app purchases. ### Is Estad free? Estad is free to download, with no in-app purchases. ### Do 4 = 1 or Estad have ads? Neither 4 = 1 nor Estad shows ads. --- *Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*