---
title: "Clifford Ribaudo — Publisher Overview"
type: publisher
publisher: "Clifford Ribaudo"
publisher_slug: "clifford-ribaudo"
canonical_url: "https://marlvel.ai/publishers/clifford-ribaudo"
last_updated: 2026-04-28T07:05:25.459Z
source: Marlvel.ai
license: CC-BY-NC-4.0
citation: "Marlvel.ai — Clifford Ribaudo Publisher Overview"
---
# Clifford Ribaudo — Publisher Overview

> Providing high-precision astronomical data and professional-grade charting tools for astrologers and celestial researchers.

- **Publisher:** Clifford Ribaudo
- **Website:** [https://iphemeris.com](https://iphemeris.com)
- **Employees:** 1-10
- **Overview generated:** 2026-04-28
- **License:** CC-BY-NC 4.0

## Executive summary

Clifford Ribaudo has carved out a technical niche by prioritizing astronomical precision over consumer-grade horoscopes, utilizing JPL DE431 ephemerides data. The portfolio functions as a professional utility suite, successfully transitioning from traditional digital reference tools to AI-integrated analysis platforms across the Apple ecosystem. This focus on high-accuracy data creates a structural moat against casual astrology apps, specifically catering to practitioners who require professional-grade reliability for calculations.

## Publisher DNA

- **Primary focus:** Professional astrology and astronomical reference tools
- **Scale:** indie
- **Target audience:** Professional astrologers, serious students, and financial traders requiring high-accuracy planetary data and real-time tracking.
- **Origin:** Established as a digital replacement for traditional paper ephemeris books, launching its first charting tool in 2008.

## Portfolio momentum

- **Velocity:** intense
- **Active apps:** 4
- **Abandoned apps:** 1
- **Last major release:** 10 days ago

Maintained an intense development cycle with 12 releases across the portfolio in the last 6 months, including a major update within the last 10 days.

## Aggregated portfolio metrics

- **Total reviews (all apps):** 7,297
- **Weighted rating:** 4.59 / 5
- **Apps in portfolio:** 5

## Category breakdown

| Category | Apps | Share |
| :--- | :--- | :--- |
| Lifestyle | 4 | 80% |
| Reference | 1 | 20% |

## Top apps

- **iPhemeris Astrology Ephemeris** — The portfolio's primary driver with 6,157 reviews and a 4.58 rating.
- **iPhemeris Astrology Charts** — Highest-rated title at 4.68 stars, serving as the professional charting flagship.
- **iPhemeris SkyNow** — Specialized real-time utility designed for continuous desktop monitoring and market trading.

## Signature patterns

- Heavy reliance on high-precision astronomical data sources like JPL DE431.
- Consistent cross-platform availability across iOS, iPadOS, and macOS with iCloud synchronization.
- Monetization strategy utilizing a mix of premium paid apps and freemium models for technical data expansions.
- Recent integration of AI-driven chart interpretations to augment traditional technical reporting.

## Bottom line

Clifford Ribaudo is a highly specialized indie publisher that has successfully professionalized the astrology app category through technical rigor. The portfolio's high weighted rating and intense update cadence signal a deeply entrenched position within the professional astrology and celestial research market.

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© 2026 Marlvel.ai | [Publisher apps index](https://marlvel.ai/api/llm/publishers/clifford-ribaudo) | [Methodology](https://marlvel.ai/api/llm/methodology)
Data licensed under CC-BY-NC 4.0.

---
© 2026 Marlvel.ai | [Full publisher profile](https://marlvel.ai/publishers/clifford-ribaudo) | [Publisher apps index](https://marlvel.ai/api/llm/publishers/clifford-ribaudo) | [Methodology](https://marlvel.ai/api/llm/methodology)
Data licensed under CC-BY-NC 4.0.