# 悦悦随声听 vs Flicker Light Meter

The clearest difference is in-app purchases: 悦悦随声听 at none against Flicker Light Meter's 2. 悦悦随声听 also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Flicker Light Meter sells 2 in-app purchases, starting at $0.99 per month. 悦悦随声听 asks for nothing beyond the download.

悦悦随声听 ships an update every 2 weeks, Flicker Light Meter every 9 days. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 悦悦随声听 | Flicker Light Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/flicker-light-meter/id6796898728/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 23 MB | 3 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [晓桐 邹](https://appshunter.io/developer/1234896456) | [苏奎 丁](https://appshunter.io/developer/6794927321) |

## What reviewers say

### 悦悦随声听

[App page](https://appshunter.io/ios/app/id1559403555)

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

**In-app purchases:** none


### Flicker Light Meter

[App page](https://appshunter.io/ios/app/flicker-light-meter/id6796898728)

This utility app uses your iPhone camera to analyze lighting flicker and estimate color temperature directly on your device. It provides detailed metrics and explanations for everyday reference, with optional local history saving.

**Highlights:** Estimates lighting flicker, Approximates color temperature, Dominant frequency and depth, Grade guidance, Plain-language metric explanations, Optional local history

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $0.99 | per month |
| Lifetime Pro | $0.99 | one-time |


## Frequently asked questions

### Is 悦悦随声听 free?

悦悦随声听 is free to download, with no in-app purchases.

### Is Flicker Light Meter free?

Flicker Light Meter is free to download, with in-app purchases available.

### Do 悦悦随声听 or Flicker Light Meter have ads?

Neither 悦悦随声听 nor Flicker Light Meter shows ads.

### Which is updated more often, 悦悦随声听 or Flicker Light Meter?

悦悦随声听 ships an update every 2 weeks, and Flicker Light Meter every 9 days. Most recently, 悦悦随声听 was updated on November 3, 2026 and Flicker Light Meter on October 25, 2026.

---

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