# Efemeris vs Panda Rei

The clearest difference is update cadence: Panda Rei at daily against Efemeris's every 8 months. Panda Rei also leads on price ($0.99 vs $3.99). Efemeris's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On ads and in-app purchases there is nothing between them.

Efemeris costs $3.99 and Panda Rei $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Efemeris ships an update every 8 months, Panda Rei daily. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Efemeris | Panda Rei |
| --- | --- | --- |
| Price | $3.99 | **$0.99** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Daily** |
| Size | 130 MB | 11 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [DTDA Games](https://appshunter.io/developer/1291540307) | [LUDOFUN EDITORA LTDA](https://appshunter.io/developer/1038947715) |

## What reviewers say

### Efemeris

[App page](https://appshunter.io/ios/app/efemeris/id1667323204)

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

**In-app purchases:** none


### Panda Rei

[App page](https://appshunter.io/ios/app/panda-rei/id6777508894)

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

**In-app purchases:** none


## Frequently asked questions

### Is Efemeris free?

Efemeris costs $3.99, with no in-app purchases.

### Is Panda Rei free?

Panda Rei costs $0.99, with no in-app purchases.

### Do Efemeris or Panda Rei have ads?

Neither Efemeris nor Panda Rei shows ads.

### Which is updated more often, Efemeris or Panda Rei?

Efemeris ships an update every 8 months, and Panda Rei daily. Most recently, Efemeris was updated on October 25, 2026 and Panda Rei on October 28, 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.*