# Stability Ball Workout Plan vs Spine

The clearest difference is in-app purchases: Spine at none against Stability Ball Workout Plan's 8. Spine also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 46 months). Stability Ball Workout Plan's advantage is iOS requirement (11.0 vs 13.0). On price and device support there is nothing between them.

Both are free to download. Stability Ball Workout Plan sells 8 one-off in-app purchases. Spine asks for nothing beyond the download.

Stability Ball Workout Plan ships an update every 46 months, Spine every 3 weeks. The most recent releases landed on September 26, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Stability Ball Workout Plan | Spine |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 46 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 156 MB | 62 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Fitric](https://appshunter.io/developer/1545172045) | [Martin Hermann](https://appshunter.io/developer/1713578524) |

## What reviewers say

### Stability Ball Workout Plan

[App page](https://appshunter.io/ios/app/stability-ball-workout-plan/id1550724228)

Discover how to enhance your workouts with a stability ball. This app guides you through exercises to strengthen your core, protect joints, and build muscle more effectively. It's suitable for all fitness levels, from beginners to experienced exercisers.

**Highlights:** Core strengthening exercises, Joint protection techniques, Muscle-building benefits, Suitable for all fitness levels, Versatile workout tool

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Removal of advertisements | $0.99 | one-time |
| Lose Weight | $1.99 | one-time |
| Exercises for Beginners | $1.99 | one-time |
| Butt, Thighs and Legs | $1.99 | one-time |
| Dumbbell Workout Plan | $1.99 | one-time |
| Exercises for A Stronger Core | $1.99 | one-time |
| Relieve Back Pain | $1.99 | one-time |
| Full Program Bundle | $4.99 | one-time |


### Spine

[App page](https://appshunter.io/ios/app/spine-check/id6449791021)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases:** none


## Frequently asked questions

### Is Stability Ball Workout Plan free?

Stability Ball Workout Plan is free to download, with in-app purchases available.

### Is Spine free?

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

### Do Stability Ball Workout Plan or Spine have ads?

Stability Ball Workout Plan shows ads; Spine does not.

### Which is updated more often, Stability Ball Workout Plan or Spine?

Stability Ball Workout Plan ships an update every 46 months, and Spine every 3 weeks. Most recently, Stability Ball Workout Plan was updated on September 26, 2026 and Spine on October 9, 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.*