# 6 Pack Promise vs Intervals Timer

The clearest difference is price: 6 Pack Promise at Free against Intervals Timer's $4.99. Intervals Timer's advantage is in-app purchases (none vs 3). On update cadence, ads, device support and iOS requirement there is nothing between them.

6 Pack Promise is free to download; Intervals Timer costs $4.99 up front. 6 Pack Promise sells 3 one-off in-app purchases. Intervals Timer asks for nothing beyond the download.

6 Pack Promise ships an update every 3 months, Intervals Timer every 2 months. The most recent releases landed on October 16, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 6 Pack Promise | Intervals Timer |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.7 (4.7K ratings)](https://appshunter.io/ios/app/6-pack-promise-ultimate-abs/id633815621/reviews)** | — |
| Number of ratings | **4.7K** | — |
| Positive reviews | 79.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 77 MB | 2 MB |
| Requires iOS | **15.5** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sports Performance Factory LLC](https://appshunter.io/developer/476624020) | [ILIOS Incorporated](https://appshunter.io/developer/738673887) |

## What reviewers say

### 6 Pack Promise

[App page](https://appshunter.io/ios/app/6-pack-promise-ultimate-abs/id633815621)

Achieve your desired physique with elite ab workouts designed by a celebrity trainer. This app offers a variety of exercises, video demonstrations, and meal plans to help you build core strength and get a six-pack. It provides a free basic program with an option to unlock advanced workouts and meal plans through in-app purchases.

**Highlights:** 30 unique free ab exercises, Fast workouts (4-8 minutes), Over 70 advanced workouts (IAP), Video demonstrations by celebrity trainer, Ab shredding meal plans (IAP), Workout shuffle for variety, Progress tracking with photos

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Exercise Group 1 | $0.99 | one-time |
| Exercise Group 2 | $0.99 | one-time |
| Full Version | $2.99 | one-time |

**What reviewers like**

- 👍 Great app for ab workouts
- 🚀 Efficient 5-8 minute workouts
- 💡 Variety of exercises and difficulty levels
- 👍 Helpful video demonstrations
- 👍 Meal plans and nutrition guidance

**What reviewers complain about**

- 🐛 Bugs and glitches after recent updates
- 🐛 Inability to play music during workouts
- 🐛 Resets progress and loses user data
- 🐛 Frequent requests for camera/photo access
- 🐛 Exercises too difficult for beginners

**Reported bugs**

- Workouts not loading or freezing
- Timer and audio issues
- Incompatibility with newer iOS versions
- Inability to progress past certain weeks

**Requested features**

- Ability to favorite individual exercises
- Option to create custom workout routines
- Integration with Apple Health or other fitness apps
- More beginner-friendly exercise options
- Improved user interface and navigation


### Intervals Timer

[App page](https://appshunter.io/ios/app/intervals-timer/id821177477)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 6 Pack Promise free?

6 Pack Promise is free to download, with in-app purchases available.

### Is Intervals Timer free?

Intervals Timer costs $4.99, with no in-app purchases.

### Do 6 Pack Promise or Intervals Timer have ads?

Neither 6 Pack Promise nor Intervals Timer shows ads.

### Which is updated more often, 6 Pack Promise or Intervals Timer?

6 Pack Promise ships an update every 3 months, and Intervals Timer every 2 months. Most recently, 6 Pack Promise was updated on October 16, 2026 and Intervals Timer on October 4, 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.*