Harp vs Child Growth Lab
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Harp compared with Child Growth Lab
| Detail | 
Harp | 
Child Growth Lab |
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| What it does | Private health records on your device
| Pediatric growth calculators for WHO and CDC references
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| Stage | Not given
| Not given
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| Founded | Not given
| Not given
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| Based in | Not given
| Not given
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| Pricing model | Freemium
| Free
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| Pricing | Not given
| Not given
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| Key features | - Record health events, observations, measurements and reports
- Select and share only what's needed
- No accounts or servers required
- Plain text files in Org Mode format
- Sync only if you decide to, using tools you trust
| - Baby Growth Percentile Calculator for weight, length, and head circumference
- Child Growth Chart Calculator for height and weight using CDC references
- Kids and teen BMI calculator with BMI-for-age percentile
- Growth velocity calculator for two-date measurement comparison
- Corrected-age timeline for preterm birth adjustment
- Family-height context calculator using parental heights
- Transparent reference selection and calculation documentation
- Browser-based calculations with no account or data storage required
- Educational guides explaining percentiles, BMI, velocity, and family-height context
- Technical measurement-review flags and data provenance links
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| What makes it different | - On-device by default with no analytics or profiteering from health data
- Files you own in standard Org Mode format that you can inspect, back up or migrate
- Cross-platform plain text storage fully under your control
| - Independent operation with no CDC, WHO, or institutional endorsement or affiliation
- Transparent inputs and derived values without invented missing measurements
- Educational focus with guides explaining result meaning and limits
- Privacy-first design with browser-based calculation and no health record storage
- Explicit reference selection without silent substitution of methods or measurements
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 31 ▼ −1 (down) since last check | 2 ● no change since last check |
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| Trust Flow (Majestic) | 19 | 4 |
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| Citation Flow (Majestic) | 19 | 17 |
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| Referring domains (Majestic) | 22 | 4 |
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4 details filled in for both companies.
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