# PrepLyfe vs Constant

The clearest difference is ads: PrepLyfe at none against Constant's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. PrepLyfe sells 4 in-app purchases, starting at $9.99 per month and Constant sells 1 in-app purchase, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

PrepLyfe ships an update every 5 days, Constant weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PrepLyfe | Constant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/preplyfe/id6760195495/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 52 MB | 54 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Infinite Software Solutions, LLC](https://appshunter.io/developer/1883114650) | [Gil Erez](https://appshunter.io/developer/1896627082) |

## What reviewers say

### PrepLyfe

[App page](https://appshunter.io/ios/app/preplyfe/id6760195495)

This app uses AI to create personalized fitness and nutrition plans for athletes and coaches. It offers habit tracking, detailed logging of workouts and meals, and progress analysis. Coaches can manage clients, assign habits, and generate plans through a dedicated platform.

**Highlights:** AI-driven plan generation, Habit tracking with Discipline Score, Macro planning and food logging, Workout logging with progress trends, Body metrics tracking, Coach platform for client management

**Features:** Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Athlete Unlimited | $9.99 | per month |
| 15 AI credits | $4.99 | one-time |
| 50 AI credits | $14.99 | one-time |
| 120 AI credits | $29.99 | one-time |


### Constant

[App page](https://appshunter.io/ios/app/constant-ai-training-coach/id6774247197)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Constant Premium | $5.99 | per month |


## Frequently asked questions

### Is PrepLyfe free?

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

### Is Constant free?

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

### Do PrepLyfe or Constant have ads?

Constant shows ads; PrepLyfe does not.

### Which is updated more often, PrepLyfe or Constant?

PrepLyfe ships an update every 5 days, and Constant weekly. Most recently, PrepLyfe was updated on November 5, 2026 and Constant 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.*