# 鏡頭計算  Lens Calculator vs ER Nightreign Timer

The clearest difference is update cadence: ER Nightreign Timer at weekly against 鏡頭計算  Lens Calculator's monthly. 鏡頭計算  Lens Calculator's advantage is iOS requirement (16.0 vs 18.4). 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.

鏡頭計算  Lens Calculator ships an update monthly, ER Nightreign Timer weekly. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 鏡頭計算  Lens Calculator | ER Nightreign Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/er-nightreign-timer/id6747755400/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | — | Free |
| Size | 5 MB | 23 MB |
| Requires iOS | **16.0** | 18.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lee Shi-Yeang](https://appshunter.io/developer/1110256487) | [Timothy OLeary](https://appshunter.io/developer/1822756860) |

## What reviewers say

### 鏡頭計算  Lens Calculator

[App page](https://appshunter.io/ios/app/lens-calculator/id1110256488)

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

**In-app purchases:** none


### ER Nightreign Timer

[App page](https://appshunter.io/ios/app/er-nightreign-timer/id6747755400)

This app precisely tracks the Day/Night cycle in Nightreign with live countdowns and phase tracking. It also records game outcomes, supports iCloud syncing, and offers Live Activities for lock screen updates. Multiple language support is included.

**Highlights:** Live countdown for Day/Night cycle phases, Real-time phase tracking with clear labels, Records wins, losses, heroes, and Night Lords, Data export to CSV, iCloud data syncing across iOS devices, Live Activities and Widgets for lock screen updates

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 鏡頭計算  Lens Calculator free?

鏡頭計算  Lens Calculator is free to download, with no in-app purchases.

### Is ER Nightreign Timer free?

ER Nightreign Timer is free to download, with no in-app purchases.

### Do 鏡頭計算  Lens Calculator or ER Nightreign Timer have ads?

Neither 鏡頭計算  Lens Calculator nor ER Nightreign Timer shows ads.

### Which is updated more often, 鏡頭計算  Lens Calculator or ER Nightreign Timer?

鏡頭計算  Lens Calculator ships an update monthly, and ER Nightreign Timer weekly. Most recently, 鏡頭計算  Lens Calculator was updated on November 1, 2026 and ER Nightreign Timer on November 5, 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.*