# Stacking vs KarmaSync

The clearest difference is price: Stacking at Free against KarmaSync's $9.99. Stacking also leads on rating (5.0 vs 4.5) and review sentiment (100% vs 83%). KarmaSync's advantage is in-app purchases (none vs 3) and ratings volume (15 vs 1). On ads and device support there is nothing between them.

Stacking is free to download; KarmaSync costs $9.99 up front. Stacking sells 3 in-app purchases, starting at $4.99 per month. KarmaSync asks for nothing beyond the download.

Stacking holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: KarmaSync has 15 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Stacking's written reviews are positive against 83% of KarmaSync's.

## The numbers

| Metric | Stacking | KarmaSync |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stacking-run-analytics/id6744961269/reviews)** | [4.5 (15 ratings)](https://appshunter.io/ios/app/karmasync-health-dashboard/id6759564126/reviews) |
| Number of ratings | 1 | **15** |
| Positive reviews | **100.0% of reviews** | 83.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Freemium | **Free** |
| Size | 6 MB | 31 MB |
| Requires iOS | 17.4 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jeremiah Daneil de la Rouviere](https://appshunter.io/developer/1451172591) | [Ali Alrabei](https://appshunter.io/developer/1861531723) |

## What reviewers say

### Stacking

[App page](https://appshunter.io/ios/app/stacking-run-analytics/id6744961269)

This app helps you understand your long-term running progress and consistency. Visualize your workouts with trend charts and activity grids, set personalized goals, and gain insights into your performance. It integrates with Apple Health to track various metrics and offers customization options for your training preferences.

**Highlights:** Trend charts for long-term progress, Activity grids for workout history, Heart rate zone analysis, Personalized fitness goal setting, Progress tracking for multiple activities, Insights and comparisons, Apple Health integration

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stacking Pro - Monthly | $4.99 | per month |
| Stacking Pro - 14-day access | Free | one-time |
| Stacking Pro - Lifetime Access | $19.99 | one-time |


### KarmaSync

[App page](https://appshunter.io/ios/app/karmasync-health-dashboard/id6759564126)

Analyzes Apple Health data to provide a daily score reflecting activity, sleep, and heart metrics. Offers insights, personalized goals, and motivational tips to help build healthier habits.

**Highlights:** Daily Karma Score, Streaks and Levels, Vitals Dashboard, Body Tracking, Sleep & Activity Insights, Personalized Goals, Daily Motivation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stacking free?

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

### Is KarmaSync free?

KarmaSync costs $9.99, with no in-app purchases.

### Which has better reviews, Stacking or KarmaSync?

Stacking is rated higher. Stacking averages 5.0 out of 5 from 1 ratings, while KarmaSync averages 4.5 from 15 ratings.

### Do Stacking or KarmaSync have ads?

Neither Stacking nor KarmaSync shows ads.

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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.*