# LiteLin vs Hydro Dots

The clearest difference is ads: LiteLin at none against Hydro Dots's shown. LiteLin also leads on iOS requirement (15.0 vs 26.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. LiteLin sells 4 in-app purchases, starting at $1.99 per 7 days and Hydro Dots sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

LiteLin ships an update every 2 days, Hydro Dots daily. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | LiteLin | Hydro Dots |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/litelin-weight-loss-tracker/id6756705635/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 days | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 43 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [霞 丘](https://appshunter.io/developer/1835311869) | [Kengo Tate](https://appshunter.io/developer/1458012620) |

## What reviewers say

### LiteLin

[App page](https://appshunter.io/ios/app/litelin-weight-loss-tracker/id6756705635)

This app offers a visually appealing and user-friendly way to track weight, BMI, and intermittent fasting. It prioritizes privacy with no social features and provides secure data locking. Seamless integration with Apple Health and iCloud ensures your data is always accessible.

**Highlights:** Beautifully designed interface, Weight and BMI trend charts, Intermittent fasting plans (16:8, 20:4), Calendar progress streaks, FaceID and Passcode lock, Apple Health and iCloud sync, Data export functionality

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $1.99 | per 7 days |
| 年会员 | $7.99 | per year |
| Lifetime | $9.99 | one-time |
| 永久会员 | $19.99 | one-time |


### Hydro Dots

[App page](https://appshunter.io/ios/app/hydro-dots/id6794577673)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A drop | $0.99 | one-time |
| A glass | $2.99 | one-time |
| A bottle | $5.99 | one-time |
| Pro — Founding Member | $5.99 | one-time |


## Frequently asked questions

### Is LiteLin free?

LiteLin is free to download, with in-app purchases available.

### Is Hydro Dots free?

Hydro Dots is free to download, with in-app purchases available.

### Do LiteLin or Hydro Dots have ads?

Hydro Dots shows ads; LiteLin does not.

### Which is updated more often, LiteLin or Hydro Dots?

LiteLin ships an update every 2 days, and Hydro Dots daily. Most recently, LiteLin was updated on November 5, 2026 and Hydro Dots on October 31, 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.*