# Wellmetry vs One

The clearest difference is in-app purchases: One at none against Wellmetry's 2. One also leads on update cadence (weekly vs every 2 months) and iOS requirement (13.0 vs 17.0). Wellmetry's advantage is ratings volume (4 vs 1). On price, rating, ads and device support there is nothing between them.

Both are free to download. Wellmetry sells 2 in-app purchases, starting at $2.99 per month. One asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Wellmetry against 5.0 for One. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Wellmetry ships an update every 2 months, One weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Wellmetry | One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/wellmetry-fasting-tracker/id6754804661/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/one-line-diet-memo/id6758232453/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Freemium | **Free** |
| Size | 10 MB | 71 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Md Golam Saroar Shuvo](https://appshunter.io/developer/1698822480) | [hyeonsik choi](https://appshunter.io/developer/1867702847) |

## What reviewers say

### Wellmetry

[App page](https://appshunter.io/ios/app/wellmetry-fasting-tracker/id6754804661)

This app helps users track intermittent fasting with various protocols, visualize progress, and monitor weight and glucose levels. It offers smart reminders, achievements, and integrates with HealthKit for seamless data sync. Designed for health improvement and lifestyle changes.

**Highlights:** Multiple fasting protocols (16:8, 18:6, 20:4, OMAD, Custom), Real-time fasting timer and progress visualization, Weight, BMI, and body measurement tracking, Blood glucose monitoring, HealthKit integration, Achievements and streak tracking, Customizable notifications

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.99 | per month |
| Yearly Premium | $14.99 | per year |


### One

[App page](https://appshunter.io/ios/app/one-line-diet-memo/id6758232453)

A simple food diary that lets you log meals without calorie counting or strict rules. Focuses on gentle habit building and provides summaries of your eating patterns over time. Recording is free and optional, with gentle reminders to help you stay on track.

**Highlights:** Log meals without calorie counting, No complex analysis or strict rules, Gentle habit building, Optional daily entries, Summaries and trend reports, PDF export

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

**In-app purchases:** none


## Frequently asked questions

### Is Wellmetry free?

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

### Is One free?

One is free to download, with no in-app purchases.

### Which has better reviews, Wellmetry or One?

Wellmetry and One are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do Wellmetry or One have ads?

Neither Wellmetry nor One shows ads.

### Which is updated more often, Wellmetry or One?

Wellmetry ships an update every 2 months, and One weekly. Most recently, Wellmetry was updated on November 5, 2026 and One 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.*