# PSMF Diet vs SteadFast Fasting Timer

The clearest difference is in-app purchases: PSMF Diet at none against SteadFast Fasting Timer's 3. SteadFast Fasting Timer's advantage is update cadence (every 4 days vs every 12 months) and device support (3 vs 1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. SteadFast Fasting Timer sells 3 in-app purchases, starting at $2.99 per month. PSMF Diet asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for PSMF Diet against 5.0 for SteadFast Fasting Timer. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

PSMF Diet ships an update every 12 months, SteadFast Fasting Timer every 4 days. The most recent releases landed on July 4, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | PSMF Diet | SteadFast Fasting Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/psmf-diet/id6747286421/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/steadfast-fasting-timer/id6764114446/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 4 days** |
| Monetization | **Free** | Freemium |
| Size | 2 MB | 47 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Clint Tustison](https://appshunter.io/developer/1807066687) | [The Rislee Tree Company LLC](https://appshunter.io/developer/1895646603) |

## What reviewers say

### PSMF Diet

[App page](https://appshunter.io/ios/app/psmf-diet/id6747286421)

This app supports medically-supervised weight loss programs by providing tools to track macros, water intake, and wellness. It features a personalized calculator, educational resources, and privacy-focused local data storage.

**Highlights:** Personalized PSMF macro calculator, Daily macro and water tracking, Wellness check-ins and mood logging, Progress charts and trend analysis, Educational resources, Diet scheduling and refeed management, Local data storage for privacy

**Features:** macOS Compatibility

**In-app purchases:** none


### SteadFast Fasting Timer

[App page](https://appshunter.io/ios/app/steadfast-fasting-timer/id6764114446)

This app provides a straightforward tool for tracking intermittent fasting. It offers multiple proven fasting protocols and progress monitoring without gamification or social features. Focuses on building discipline and understanding the science behind fasting.

**Highlights:** Multiple fasting protocols (16:8, 18:6, 20:4, OMAD), Progress tracking and completion stats, Science library on fasting mechanisms, BMI tracking, Clean, clutter-free interface, No gamification or social features

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SteadFast Pro Monthly | $2.99 | per month |
| SteadFast Pro Annual | $19.99 | per year |
| Lifetime Access | $49.99 | one-time |


## Frequently asked questions

### Is PSMF Diet free?

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

### Is SteadFast Fasting Timer free?

SteadFast Fasting Timer is free to download, with in-app purchases available.

### Which has better reviews, PSMF Diet or SteadFast Fasting Timer?

PSMF Diet and SteadFast Fasting Timer are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do PSMF Diet or SteadFast Fasting Timer have ads?

Neither PSMF Diet nor SteadFast Fasting Timer shows ads.

### Which is updated more often, PSMF Diet or SteadFast Fasting Timer?

PSMF Diet ships an update every 12 months, and SteadFast Fasting Timer every 4 days. Most recently, PSMF Diet was updated on July 4, 2026 and SteadFast Fasting Timer on September 8, 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.*