# 鏡頭計算  Lens Calculator vs DataCalc by DPBOX

The clearest difference is in-app purchases: 鏡頭計算  Lens Calculator at none against DataCalc by DPBOX's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. DataCalc by DPBOX sells 1 in-app purchase, starting at $2.99 per year. 鏡頭計算  Lens Calculator asks for nothing beyond the download.

鏡頭計算  Lens Calculator ships an update monthly, DataCalc by DPBOX every 2 months. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 鏡頭計算  Lens Calculator | DataCalc by DPBOX |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 16 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lee Shi-Yeang](https://appshunter.io/developer/1110256487) | [Gavin Foo](https://appshunter.io/developer/556377228) |

## 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


### DataCalc by DPBOX

[App page](https://appshunter.io/ios/app/datacalc-by-dpbox-video-data/id6503596289)

This tool helps filmmakers calculate video data capacity, transfer times, and recording durations. It offers offline use, iCloud synchronization, and language/unit switching.

**Highlights:** Offline data calculation, Transfer time estimation, Recording duration calculation, Summary of records, iCloud synchronization, Language and unit switching

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual | $2.99 | per year |


## 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 DataCalc by DPBOX free?

DataCalc by DPBOX is free to download, with in-app purchases available.

### Do 鏡頭計算  Lens Calculator or DataCalc by DPBOX have ads?

Neither 鏡頭計算  Lens Calculator nor DataCalc by DPBOX shows ads.

### Which is updated more often, 鏡頭計算  Lens Calculator or DataCalc by DPBOX?

鏡頭計算  Lens Calculator ships an update monthly, and DataCalc by DPBOX every 2 months. Most recently, 鏡頭計算  Lens Calculator was updated on November 1, 2026 and DataCalc by DPBOX on November 4, 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.*