# 20 Pull Ups Trainer Challenge vs HIIT & Tabata Interval Timer

The clearest difference is in-app purchases: HIIT & Tabata Interval Timer at none against 20 Pull Ups Trainer Challenge's 3. HIIT & Tabata Interval Timer also leads on update cadence (every 3 days vs every 2 months). 20 Pull Ups Trainer Challenge's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 20 Pull Ups Trainer Challenge sells 3 in-app purchases, starting at $4.99 per month. HIIT & Tabata Interval Timer asks for nothing beyond the download.

20 Pull Ups Trainer Challenge ships an update every 2 months, HIIT & Tabata Interval Timer every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 20 Pull Ups Trainer Challenge | HIIT & Tabata Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (891 ratings)](https://appshunter.io/ios/app/20-pull-ups-trainer-challenge/id848897098/reviews)** | — |
| Number of ratings | **891** | — |
| Positive reviews | 48.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 71 MB | 29 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zen Labs](https://appshunter.io/developer/485971738) | [Toril Lia](https://appshunter.io/developer/6799709405) |

## What reviewers say

### 20 Pull Ups Trainer Challenge

[App page](https://appshunter.io/ios/app/20-pull-ups-trainer-challenge/id848897098)

This app guides users to achieve 20 pull-ups in 6 weeks with a proven program suitable for all fitness levels. It offers voice cues, progress tracking, and motivational features. The first two weeks are free, with subscription options available for full access.

**Highlights:** Achieve 20 pull-ups in 6 weeks, Program for all fitness levels, Voice cues for guidance, Badges and awards for workouts, Social sharing of progress, Motivational music

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zen Unlimited Pass Monthly | $4.99 | per month |
| Zen Power Playlist 3 Months | $29.99 | per 3 months |
| Zen Unlimited Pass Annual | $74.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Well-planned app
- 💪 Helps improve pull-ups
- 🎉 Great for military/fitness goals

**What reviewers complain about**

- 💰 Subscription model change after purchase
- 🔒 Locked out of paid features after update
- 🤔 Unclear progression for beginners
- ⏱️ Timer issues (stops when switching apps)

**Reported bugs**

- App crashes
- Compatibility issues with older devices

**Requested features**

- Ability to track incomplete workouts
- Option to start at beginner, intermediate, or advanced level
- Ability to combine multiple Zen apps (push-ups, squats, etc.) into circuits


### HIIT & Tabata Interval Timer

[App page](https://appshunter.io/ios/app/hiit-and-tabata-interval-timer/id6799709403)

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

**In-app purchases:** none


## Frequently asked questions

### Is 20 Pull Ups Trainer Challenge free?

20 Pull Ups Trainer Challenge is free to download, with in-app purchases available.

### Is HIIT & Tabata Interval Timer free?

HIIT & Tabata Interval Timer is free to download, with no in-app purchases.

### Do 20 Pull Ups Trainer Challenge or HIIT & Tabata Interval Timer have ads?

HIIT & Tabata Interval Timer shows ads; 20 Pull Ups Trainer Challenge does not.

### Which is updated more often, 20 Pull Ups Trainer Challenge or HIIT & Tabata Interval Timer?

20 Pull Ups Trainer Challenge ships an update every 2 months, and HIIT & Tabata Interval Timer every 3 days. Most recently, 20 Pull Ups Trainer Challenge was updated on November 3, 2026 and HIIT & Tabata Interval Timer 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.*