HowTall vs Solid
Side-by-side comparison of features, pros & cons, pricing, and community votes (2026).
🏆 Solid leads with 466 upvotes
Measure anyone's height in real time with iPhone LiDAR
HowTall is an innovative iOS application that leverages LiDAR technology and ARKit body-pose estimation to measure a person's height in real time. Designed for iPhone Pro users with LiDAR sensors (iPhone 12 Pro or later), it allows users to simply point their device at someone and instantly get an accurate height reading in centimeters or feet/inches. Its fully on-device processing ensures user privacy, as no data is sent to servers, and all camera and depth frames are discarded after processing. The app's ease of use and privacy focus make it ideal for health, fitness, or casual use cases where quick, reliable height measurements are needed without the hassle of manual tools or external devices. Its integration of AR and LiDAR technology makes it a standout for those interested in augmented reality applications and real-time measurements, offering a seamless and modern approach to a common need.
Pros
- Accurate real-time height measurement using advanced AR and LiDAR technology
- Privacy-focused with on-device processing and no account requirements
- Easy to use with minimal setup, requiring only an iPhone with LiDAR
- No in-app purchases or subscriptions, free to use
- Supports measurements in both metric and imperial units
Cons
- Limited to iPhone Pro models with LiDAR (iPhone 12 Pro or newer)
- Requires iOS 17+ which may exclude older devices
- Accuracy may vary slightly depending on user environment and positioning
Best for
- • Quick height assessments in health and fitness settings
- • Measuring children or family members casually at home
- • For real estate or interior design to gauge room or furniture heights
- • Educational demonstrations of AR and LiDAR technology
Pricing: Free and straightforward to use, with no in-app purchases or subscriptions, making it accessible for all compatible users.
Agents with their own computers, accounts, and budgets.
Solid is an innovative AI-driven platform that empowers autonomous agents to handle complex, long-term work tasks on behalf of individuals or teams. Unlike typical personal assistants, Solid agents operate independently by setting up their own physical machines, creating accounts, and managing budgets to execute workflows seamlessly. They interact with your apps via APIs or login credentials, building new solutions and resolving issues as they arise. This makes Solid ideal for organizations seeking to delegate substantial and ongoing projects without micromanagement, allowing users to focus on higher-level strategy while the agents handle operational details. Built for scalability and depth, Solid is suited for businesses that require reliable, autonomous support across various development and productivity tasks, offering a unique blend of automation, customization, and end-to-end management.
Pros
- Autonomous agents that handle complex, long-term projects independently
- Operates real machines, manages accounts, and budgets for full control
- Capable of building custom apps, automating workflows, and troubleshooting
- Reduces manual workload and enables teams to focus on strategic priorities
- Designed for scalable, enterprise-level automation
Cons
- Potential complexity in initial setup and onboarding
- Limited publicly available user feedback or case studies
- Requires trust in the autonomous agents to manage sensitive tasks
Best for
- • Automating large-scale data processing and integration tasks
- • Building and maintaining custom software solutions
- • Managing ongoing infrastructure and cloud service accounts
- • Automating repetitive business workflows
Pricing: Pricing not verified