# Plank Workout 30 day challenge vs SKCoaching

The clearest difference is ads: SKCoaching at none against Plank Workout 30 day challenge's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Plank Workout 30 day challenge sells 2 in-app purchases, starting at $2.49 per month and SKCoaching sells 1 in-app purchase, starting at $300.00 per month. Whichever you choose, the download price is not the number that matters.

Plank Workout 30 day challenge ships an update every 6 weeks, SKCoaching every 5 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Plank Workout 30 day challenge | SKCoaching |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.5K ratings)](https://appshunter.io/ios/app/plank-workout-30-day-challenge/id1508392850/reviews)** | — |
| Number of ratings | **1.5K** | — |
| Positive reviews | 47.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 42 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Roman Sorochak](https://appshunter.io/developer/1097351227) | [Stanislav Kluschnik](https://appshunter.io/developer/1763258189) |

## What reviewers say

### Plank Workout 30 day challenge

[App page](https://appshunter.io/ios/app/plank-workout-30-day-challenge/id1508392850)

This app guides you through a 30-day plank challenge, starting with short durations and progressively increasing your hold time. It offers a custom timer for personalized workouts and tracks your training history. A voice assistant provides guidance during your sessions.

**Highlights:** 30-day plank challenge plan, Customizable plank timer, Personalized training rhythm, Workout history tracking, Voice assistant guidance

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plank Premium monthly | $2.49 | per month |
| Plank Premium yearly | $12.49 | per year |

**What reviewers like**

- 👍 Great app
- 💡 Excellent for plank training
- 👍 Simple and practical
- 👍 Keeps user accountable
- 👍 Beginner friendly

**What reviewers complain about**

- 🐛 Ads won't close
- 🐛 Ads block progress
- 🐛 Timing issues
- 🐛 App closes/locks out
- 🐛 Voice prompt doesn't work

**Reported bugs**

- Ads won't close to allow completing the day
- Phone screen locks during exercise, stopping the timer
- Timer not matching the voice prompt
- Time intervals increasing too quickly
- App not registering completed exercises

**Requested features**

- Option to disable ads
- Ability to customize timer for challenge
- Ability to track progress and see future goals
- Sync with friends to see each other's progress
- Scalable for different age groups


### SKCoaching

[App page](https://appshunter.io/ios/app/skcoaching/id6639620403)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Coaching | $300.00 | per month |


## Frequently asked questions

### Is Plank Workout 30 day challenge free?

Plank Workout 30 day challenge is free to download, with in-app purchases available.

### Is SKCoaching free?

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

### Do Plank Workout 30 day challenge or SKCoaching have ads?

Plank Workout 30 day challenge shows ads; SKCoaching does not.

### Which is updated more often, Plank Workout 30 day challenge or SKCoaching?

Plank Workout 30 day challenge ships an update every 6 weeks, and SKCoaching every 5 weeks. Most recently, Plank Workout 30 day challenge was updated on November 3, 2026 and SKCoaching on November 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*