Jack Callow
Fullstack Software Engineer
@jvckcallow 133 X followers sjmc11First product launched 4y ago
- Public revenue
- Undisclosed
- No public revenue across products
100% full-depth creator dossier open: complete product portfolio, 12-month combined traffic & MRR curves, shipping cadence, and timeline events.
Traffic
Portfolio · Last 12 months
- Contractor Calculator
- +2 with <5K visits or no data
Products
| Product | Visits · Oct | Actions |
|---|---|---|
| TourGuideJSOSSIntuitive and customisable tours for user onboarding | <5K | |
| Contractor CalculatorUK Contractor Calculator | <5K | |
| KokoriTransform text to speech with a powerful macOS app | <5K |
Timeline
Launches, marketing, revenue milestones, and pricing/plan/positioning changes across products
Nov 1 · 15d ago
TourGuideJS Adopted technology: Priority HintsFeatures
—→Priority Hints
Jan 30 · 10mo ago
Kokori launchedNew product
Mar 12, 2025 · 20mo ago
Contractor Calculator launchedNew product
Nov 16, 2022 · 4y ago
TourGuideJS launchedNew product
Questions & evidence
- What products has Jack Callow built?
- Jack Callow tracks 3 standalone software products on EarlyLore (3 currently live), led by TourGuideJS, Contractor Calculator, Kokori.
- How much website traffic do Jack Callow's products get?
- Across tracked standalone domains with web traffic estimates, Jack Callow's portfolio reaches <5K combined monthly visits in each site's latest observed month. Coverage excludes shared third-party hosts and store listings.
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