# Morph vs Simple Fast

The clearest difference is in-app purchases: Simple Fast at none against Morph's 2. Simple Fast also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Morph's advantage is ads (none vs shown). On price and update cadence there is nothing between them.

Both are free to download. Morph sells 2 in-app purchases, starting at $12.99 per month. Simple Fast asks for nothing beyond the download.

Morph ships an update every 3 months, Simple Fast every 2 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Morph | Simple Fast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/morph-fasting-companion/id6761290045/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Freemium | — |
| Size | 23 MB | 45 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Neuroclarity Studio LLC](https://appshunter.io/developer/1888693419) | [Duc Dang Ngoc](https://appshunter.io/developer/1704135652) |

## What reviewers say

### Morph

[App page](https://appshunter.io/ios/app/morph-fasting-companion/id6761290045)

This app guides users through intermittent fasting with an AI companion that evolves as they progress. It helps users understand metabolic zones, offers science-backed protocols, and provides personalized coaching. Track key metrics and learn about the benefits of fasting.

**Highlights:** AI fasting companion that evolves, Metabolic zone tracking, 11 science-backed fasting protocols, Cycle-synced plans for women, Ramadan mode, Personalized AI coaching, Track energy, mood, and clarity

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Morph Pro — Monthly | $12.99 | per month |
| Morph Pro — Yearly | $59.99 | per year |


### Simple Fast

[App page](https://appshunter.io/ios/app/simple-fast-fasting-tracker/id6774254122)

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

**In-app purchases:** none


## Frequently asked questions

### Is Morph free?

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

### Is Simple Fast free?

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

### Do Morph or Simple Fast have ads?

Simple Fast shows ads; Morph does not.

### Which is updated more often, Morph or Simple Fast?

Morph ships an update every 3 months, and Simple Fast every 2 months. Most recently, Morph was updated on October 16, 2026 and Simple Fast on October 14, 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.*