# LightFasting vs SoundDose

The clearest difference is update cadence: SoundDose at fortnightly against LightFasting's every 2 months. On price, rating, ratings volume and ads there is nothing between them.

LightFasting costs $0.99 and SoundDose $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for LightFasting against 5.0 for SoundDose. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

LightFasting ships an update every 2 months, SoundDose fortnightly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | LightFasting | SoundDose |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/lightfasting/id1576166369/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/sounddose/id6757107132/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Size | 44 MB | 3 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [兴龙 张](https://appshunter.io/developer/1576162823) | [保哲 刘](https://appshunter.io/developer/1864461954) |

## What reviewers say

### LightFasting

[App page](https://appshunter.io/ios/app/lightfasting/id1576166369)

This app offers a scientific approach to weight loss by guiding users through a slightly high-intensity diet. It includes tools for calorie conversion, calculating ideal weight, basal metabolic rate, and BMI, along with tracking weight changes and energy intake.

**Highlights:** High-intensity diet guidance, Calorie and Joule conversion, Standard weight calculator, Basal metabolic rate calculator, Body mass index calculator, Energy intake tracking, Weight change tracking

**Features:** macOS Compatibility, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases:** none


### SoundDose

[App page](https://appshunter.io/ios/app/sounddose/id6757107132)

This app automatically monitors your daily noise exposure by reading environmental audio data from Apple Health. It categorizes noise levels by location and provides clear visualizations to help you understand potential risks.

**Highlights:** Automatic noise monitoring via Apple Health, Location-based data categorization (Home, Office, Outdoor), Daily noise exposure ring charts, Color-coded noise level indicators, Multi-language support, Local data storage for privacy

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is LightFasting free?

LightFasting costs $0.99, with no in-app purchases.

### Is SoundDose free?

SoundDose costs $0.99, with no in-app purchases.

### Which has better reviews, LightFasting or SoundDose?

LightFasting and SoundDose are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do LightFasting or SoundDose have ads?

Neither LightFasting nor SoundDose shows ads.

### Which is updated more often, LightFasting or SoundDose?

LightFasting ships an update every 2 months, and SoundDose fortnightly. Most recently, LightFasting was updated on October 25, 2026 and SoundDose on October 24, 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.*