# LuxMeter Easy vs Private Docs Vault

The clearest difference is price: Private Docs Vault at Free against LuxMeter Easy's $0.99. Private Docs Vault also leads on update cadence (every 2 days vs every 19 months). LuxMeter Easy's advantage is in-app purchases (none vs 5) and iOS requirement (12.0 vs 17.0). On rating, ratings volume, ads and device support there is nothing between them.

Private Docs Vault is free to download; LuxMeter Easy costs $0.99 up front. Private Docs Vault sells 5 one-off in-app purchases. LuxMeter Easy asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for LuxMeter Easy against 5.0 for Private Docs Vault. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

LuxMeter Easy ships an update every 19 months, Private Docs Vault every 2 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | LuxMeter Easy | Private Docs Vault |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/luxmeter-easy/id1463061798/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/private-docs-vault-photo-lock/id6811581165/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 2 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 14 MB | 6 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [AM PowerSoftware](https://appshunter.io/developer/303958914) | [JHIH YUN CHEN](https://appshunter.io/developer/6811581287) |

## What reviewers say

### LuxMeter Easy

[App page](https://appshunter.io/ios/app/luxmeter-easy/id1463061798)

Measure the lighting intensity of any environment with precision using your smartphone. Evaluate average light values, analyze light diffusion with color scales, and optimize your lighting setups easily.

**Highlights:** Measure lighting intensity, Evaluate average light values, Analyze light diffusion, Use IR, UV, or GrayScale color scales, Improve lighting configurations, Simple smartphone use

**Features:** Vision Pro support

**In-app purchases:** none


### Private Docs Vault

[App page](https://appshunter.io/ios/app/private-docs-vault-photo-lock/id6811581165)

Securely store and encrypt your private photos, videos, and files locally on your device. Access them with Face ID/Touch ID and a PIN, with no cloud uploads or analytics. Offers advanced encryption and a range of organizational tools.

**Highlights:** Local encrypted vault, Face ID/Touch ID and PIN access, AES-256-GCM encryption, No cloud uploads or analytics, Built-in camera for direct encryption, Encrypted backups, Multiple vaults

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A coffee | $1.99 | one-time |
| A lunch | $4.99 | one-time |
| No Storage Limit | $4.99 | one-time |
| A dinner | $9.99 | one-time |
| Generous | $99.99 | one-time |


## Frequently asked questions

### Is LuxMeter Easy free?

LuxMeter Easy costs $0.99, with no in-app purchases.

### Is Private Docs Vault free?

Private Docs Vault is free to download, with in-app purchases available.

### Which has better reviews, LuxMeter Easy or Private Docs Vault?

LuxMeter Easy and Private Docs Vault are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do LuxMeter Easy or Private Docs Vault have ads?

Neither LuxMeter Easy nor Private Docs Vault shows ads.

### Which is updated more often, LuxMeter Easy or Private Docs Vault?

LuxMeter Easy ships an update every 19 months, and Private Docs Vault every 2 days. Most recently, LuxMeter Easy was updated on November 3, 2026 and Private Docs Vault on November 6, 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.*