# MEMO Research vs Stargazer

The clearest difference is update cadence: Stargazer at weekly against MEMO Research's every 4 months. MEMO Research's advantage is iOS requirement (11.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

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

MEMO Research ships an update every 4 months, Stargazer weekly. The most recent releases landed on September 13, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | MEMO Research | Stargazer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/stargazer/id6794534527/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | — | Free |
| Size | 54 MB | 55 MB |
| Requires iOS | **11.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [TLD ENTERPRISES PTY LTD](https://appshunter.io/developer/1454733702) | [Kendal Slack](https://appshunter.io/developer/1183263943) |

## What reviewers say

### MEMO Research

[App page](https://appshunter.io/ios/app/memo-research/id1561464034)

**In-app purchases:** none


### Stargazer

[App page](https://appshunter.io/ios/app/stargazer/id6794534527)

Explore the night sky by pointing your device upwards. Identify planets, constellations, stars, and satellites. Features an AI assistant for astronomy questions and an augmented reality mode to visualize celestial bodies.

**Highlights:** Point-and-identify celestial objects, AI-powered astronomy assistant, Augmented reality solar system exploration, Constellation artwork and facts, Night photography planning, Printable star charts, Interactive sky quiz

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MEMO Research free?

MEMO Research is free to download, with no in-app purchases.

### Is Stargazer free?

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

### Do MEMO Research or Stargazer have ads?

Neither MEMO Research nor Stargazer shows ads.

### Which is updated more often, MEMO Research or Stargazer?

MEMO Research ships an update every 4 months, and Stargazer weekly. Most recently, MEMO Research was updated on September 13, 2026 and Stargazer on October 24, 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.*