7+ iOS apps & games curated and reviewed
The best nub theory apps and games on iPhone average 4.4★ across 7+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | Yes | Jul 2026 |
| 2 |  | Free | 4.6★ (10) | No | Yes | Jul 2026 |
| 3 |  | Free | 3.7★ (6) | No | Yes | Jul 2026 |
| 4 |  | Free | 5.0★ (3) | No | Yes | Jul 2026 |
| 5 |  | Free | — | No | Yes | Jun 2026 |
| 6 |  | Free | 4.1★ (482) | Yes | Yes | Jul 2026 |
| 7 |  | Free | 4.7★ (435) | No | No | Jul 2026 |
This app uses AI to analyze ultrasound images and playfully predict your baby's gender. It provides confidence scores, feedback on scan clarity, and a history log for keepsakes. Designed for entertainment, it's a fun way to explore pregnancy possibilities.
Predict your baby's gender using AI analysis of ultrasound photos based on Nub Theory. Upload an image, receive an instant prediction with a confidence score and detailed insights. Designed for expectant parents to share the excitement.
This app uses AI to analyze ultrasound scans and predict your baby's gender based on scientific theories. It offers detailed results, explanations of prediction methods, and a baby name generator. Designed for entertainment and education for expectant parents.
Experience realistic driving in a virtual city with multiple game modes. Develop your skills, earn points to unlock and customize cars, and navigate traffic and challenges. Offers a free trial for VIP membership with additional benefits.
Manage your finances with a digital account, credit and debit cards, and various loan options. Access FGTS anticipation, investments, and secure online purchases. Enjoy cashback and partner discounts.