# A vs Efemeris

The clearest difference is price: A at Free against Efemeris's $3.99. A also leads on iOS requirement (9.0 vs 15.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

A is free to download; Efemeris costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

A ships an update every 4 months, Efemeris every 8 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | A | Efemeris |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/a-games/id1335941693/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 8 months |
| Monetization | Free | — |
| Size | 74 MB | 130 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AdVenture Games Inc.](https://appshunter.io/developer/1335941692) | [DTDA Games](https://appshunter.io/developer/1291540307) |

## What reviewers say

### A

[App page](https://appshunter.io/ios/app/a-games/id1335941693)

Engage in a team-building adventure that tests communication, leadership, and problem-solving skills. Race against the clock to find hidden treasures while exploring historical locations.

**Highlights:** Team camaraderie building, Historic landmark exploration, Communication skill testing, Leadership development, Problem-solving challenges, Time-based treasure hunts

**Features:** macOS Compatibility

**In-app purchases:** none


### Efemeris

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

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

**In-app purchases:** none


## Frequently asked questions

### Is A free?

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

### Is Efemeris free?

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

### Do A or Efemeris have ads?

Neither A nor Efemeris shows ads.

### Which is updated more often, A or Efemeris?

A ships an update every 4 months, and Efemeris every 8 months. Most recently, A was updated on November 2, 2026 and Efemeris on November 7, 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.*