# CelestialGuide vs Column Construction Calculator

The clearest difference is update cadence: CelestialGuide at every 17 months against Column Construction Calculator's every 38 months. CelestialGuide also leads on price ($0.99 vs $1.99). Column Construction Calculator's advantage is iOS requirement (16.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

CelestialGuide costs $0.99 and Column Construction Calculator $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CelestialGuide ships an update every 17 months, Column Construction Calculator every 38 months. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | CelestialGuide | Column Construction Calculator |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/celestialguide/id649358382/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 17 months** | Every 38 months |
| Monetization | Paid | — |
| Size | 17 MB | 34 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Geoffrey Domm](https://appshunter.io/developer/373378724) | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) |

## What reviewers say

### CelestialGuide

[App page](https://appshunter.io/ios/app/celestialguide/id649358382)

Explore the cosmos with an interactive sky map that displays stars, planets, and celestial events. Point your device at the sky to see a real-time representation of your surroundings, with adjustable visibility settings for stars.

**Highlights:** Interactive sky map, Real-time celestial tracking, Adjustable star visibility, Planet and comet locations, Eclipse and transit rendering, Messier Object database, Virtual Orrery

**Features:** macOS Compatibility

**In-app purchases:** none


### Column Construction Calculator

[App page](https://appshunter.io/ios/app/column-construction-calculator/id1148046540)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CelestialGuide free?

CelestialGuide costs $0.99, with no in-app purchases.

### Is Column Construction Calculator free?

Column Construction Calculator costs $1.99, with no in-app purchases.

### Do CelestialGuide or Column Construction Calculator have ads?

Neither CelestialGuide nor Column Construction Calculator shows ads.

### Which is updated more often, CelestialGuide or Column Construction Calculator?

CelestialGuide ships an update every 17 months, and Column Construction Calculator every 38 months. Most recently, CelestialGuide was updated on October 7, 2026 and Column Construction Calculator on September 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*