# Interval Weight Loss vs BlissBodyU

The clearest difference is in-app purchases: BlissBodyU at none against Interval Weight Loss's 10. Interval Weight Loss's advantage is update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Interval Weight Loss sells 10 in-app purchases, starting at $14.00 per month. BlissBodyU asks for nothing beyond the download.

Interval Weight Loss ships an update fortnightly, BlissBodyU every 2 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Interval Weight Loss | BlissBodyU |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Subscription | — |
| Size | 119 MB | 180 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Interval Weight Loss](https://appshunter.io/developer/1663437345) | [HUMPHRIS HEALTH PTY LTD](https://appshunter.io/developer/1671644702) |

## What reviewers say

### Interval Weight Loss

[App page](https://appshunter.io/ios/app/interval-weight-loss/id1663437343)

This scientifically developed program offers a structured approach to sustainable weight loss by resetting metabolism and building healthy habits. It provides flexible meal plans, educational resources, progress tracking tools, and optional access to a personal dietitian.

**Highlights:** Habit tracker for balanced eating, exercise, and sleep, Flexible and adaptable meal plans with new recipes, Educational videos and articles on weight loss science, Tools to track weight, blood changes, and measurements, 24/7 access to a personal dietitian (PLUS plan), Stepped approach to weight loss without starvation mode

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IWL Plan Monthly | $14.00 | per month |
| IWL Plus Monthly | $29.00 | per month |
| IWL Essential | $40.00 | per month |
| IWL Plan Quarterly (Trial) | $59.00 | per 3 months |
| IWL Plus Quarterly | $129.99 | per 3 months |
| IWL Plus Quarterly (Trial) | $129.99 | per 3 months |
| IWL Plan Yearly | $179.00 | per year |
| IWL Plan Yearly (Trial) | $179.00 | per year |
| IWL Plus Yearly | $399.00 | per year |
| IWL Plus Yearly (Trial) | $399.00 | per year |


### BlissBodyU

[App page](https://appshunter.io/ios/app/blissbodyu/id1671644700)

**Features:** Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Interval Weight Loss free?

Interval Weight Loss is free to download, with in-app purchases available.

### Is BlissBodyU free?

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

### Do Interval Weight Loss or BlissBodyU have ads?

Neither Interval Weight Loss nor BlissBodyU shows ads.

### Which is updated more often, Interval Weight Loss or BlissBodyU?

Interval Weight Loss ships an update fortnightly, and BlissBodyU every 2 months. Most recently, Interval Weight Loss was updated on November 3, 2026 and BlissBodyU on November 7, 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.*