# One Day Diet vs Jym

The clearest difference is update cadence: One Day Diet at every 2 days against Jym's every 7 months. On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. 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 One Day Diet against 5.0 for Jym. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

One Day Diet ships an update every 2 days, Jym every 7 months. Both last shipped on October 13, 2026.

## The numbers

| Metric | One Day Diet | Jym |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/one-day-diet/id6475656051/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/jym-workout-log/id6476467344/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 7 months |
| Monetization | Free | Free |
| Size | 1 MB | 2 MB |
| Requires iOS | 17.0 | **16** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michael Collins](https://appshunter.io/developer/1662592609) | [Jason Chen](https://appshunter.io/developer/1665761776) |

## What reviewers say

### One Day Diet

[App page](https://appshunter.io/ios/app/one-day-diet/id6475656051)

This app helps you gamify healthy eating by tracking your diet based on a system designed for healthier food choices. It allows for personal target setting and includes additional tracking for macronutrients and hydration. Coupled with exercise, it aims to support weight loss.

**Highlights:** Gamified healthy eating tracking, Personalized diet target setting, Macronutrient tracking, Hydration tracking, Based on 'Racing Weight' principles

**In-app purchases:** none


### Jym

[App page](https://appshunter.io/ios/app/jym-workout-log/id6476467344)

Log your gym workouts with a straightforward and easy-to-use interface. Track weight, reps, and sets, and visualize your progress over time with insightful graphs. Stay motivated with daily activity logs and workout-specific streak tracking.

**Highlights:** Workout tracking with autofill, Weight improvement graphs, Daily activity log, Workout day-specific streak tracking, Historically inspired UI

**In-app purchases:** none


## Frequently asked questions

### Is One Day Diet free?

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

### Is Jym free?

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

### Which has better reviews, One Day Diet or Jym?

One Day Diet and Jym are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do One Day Diet or Jym have ads?

Neither One Day Diet nor Jym shows ads.

### Which is updated more often, One Day Diet or Jym?

One Day Diet ships an update every 2 days, and Jym every 7 months. Most recently, One Day Diet was updated on October 13, 2026 and Jym on October 13, 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.*