# By vs WolfLunar

The clearest difference is update cadence: By at every 3 months against WolfLunar's every 18 months. By also leads on iOS requirement (8.0 vs 15.6). 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.

By ships an update every 3 months, WolfLunar every 18 months. The most recent releases landed on October 27, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | By | WolfLunar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 18 months |
| Size | 10 MB | 1 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vimar S.p.A.](https://appshunter.io/developer/401438010) | [WOLFSAFETY](https://appshunter.io/developer/603135777) |

## What reviewers say

### By

[App page](https://appshunter.io/ios/app/by-gate/id1337012556)

**In-app purchases:** none


### WolfLunar

[App page](https://appshunter.io/ios/app/wolflunar/id1436944812)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is By free?

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

### Is WolfLunar free?

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

### Do By or WolfLunar have ads?

Neither By nor WolfLunar shows ads.

### Which is updated more often, By or WolfLunar?

By ships an update every 3 months, and WolfLunar every 18 months. Most recently, By was updated on October 27, 2026 and WolfLunar on October 6, 2026.

---

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