# Lunar Observer vs Telescope Log

The clearest difference is rating: Lunar Observer at 5.0 against Telescope Log's 4.5. On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Lunar Observer holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Lunar Observer ships an update monthly, Telescope Log every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Lunar Observer | Telescope Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/lunar-observer/id6762546936/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/telescope-log-darksite/id6792251293/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 331 MB | 70 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Humoud Salmeen](https://appshunter.io/developer/1894626699) | [Jawahar Natarajan](https://appshunter.io/developer/6772381065) |

## What reviewers say

### Lunar Observer

[App page](https://appshunter.io/ios/app/lunar-observer/id6762546936)

Track the moon's phases, illumination, and rise/set times with precise astronomical calculations. View upcoming solar and lunar eclipses, and access a Hijri calendar. Get optional notifications for celestial events and enjoy an authentic Arabic interface.

**Highlights:** Precise moon phase and illumination tracking, Sunrise, sunset, moonrise, moonset times, Upcoming solar and lunar eclipse coverage, Hijri calendar with moon phase markers, Customizable notifications for celestial events, Choice of NASA imagery or 3D terrain model, Full Arabic localization

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Telescope Log

[App page](https://appshunter.io/ios/app/telescope-log-darksite/id6792251293)

This app helps telescope owners plan their night of stargazing by suggesting targets based on their equipment and sky conditions. It also provides a detailed logbook for recording observations and tracks progress towards astronomy certificates.

**Highlights:** Gear-aware target suggestions, Session queue and planning, Detailed observing logbook, Red field mode for night vision, Tracking for astronomy certificates, Offline functionality, Data export and import

**Features:** Family Sharing

**In-app purchases:** none


## Frequently asked questions

### Is Lunar Observer free?

Lunar Observer is free to download, with no in-app purchases.

### Is Telescope Log free?

Telescope Log is free to download, with no in-app purchases.

### Which has better reviews, Lunar Observer or Telescope Log?

Lunar Observer is rated higher. Lunar Observer averages 5.0 out of 5 from 4 ratings, while Telescope Log averages 4.5 from 2 ratings.

### Do Lunar Observer or Telescope Log have ads?

Neither Lunar Observer nor Telescope Log shows ads.

### Which is updated more often, Lunar Observer or Telescope Log?

Lunar Observer ships an update monthly, and Telescope Log every 3 weeks. Most recently, Lunar Observer was updated on October 25, 2026 and Telescope Log on October 24, 2026.

---

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