# Harmony Decision Maker vs Knockline

The clearest difference is rating: Knockline at 5.0 against Harmony Decision Maker's 4.3. Knockline also leads on in-app purchases (none vs 7) and update cadence (every 3 days vs every 3 months). Harmony Decision Maker's advantage is ratings volume (8 vs 1) and iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Harmony Decision Maker sells 7 in-app purchases, starting at $2.49 per 7 days. Knockline asks for nothing beyond the download.

Knockline holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Harmony Decision Maker has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of Harmony Decision Maker's written reviews are positive against 100% of Knockline's.

Harmony Decision Maker ships an update every 3 months, Knockline every 3 days. The most recent releases landed on October 26, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Harmony Decision Maker | Knockline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (8 ratings)](https://appshunter.io/ios/app/harmony-decision-maker/id1194396926/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knockline-door-knock-tracker/id6806494453/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Freemium | **Free** |
| Size | 207 MB | 8 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Goldratt Research Labs](https://appshunter.io/developer/482913266) | [Maximiliano Ballesteros](https://appshunter.io/developer/1895296201) |

## What reviewers say

### Harmony Decision Maker

[App page](https://appshunter.io/ios/app/harmony-decision-maker/id1194396926)

This app guides users through complex choices with a structured, game-like approach. It helps individuals and organizations clarify problems and discover optimal solutions, fostering confident and efficient decision-making.

**Highlights:** Structured decision guidance, Game-like step-by-step process, Problem clarification, Solution discovery, Multi-language support, Global user base

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HDM 1 Week With Free Trial | $2.49 | per 7 days |
| HDM 1 Month Subscription | $3.49 | per month |
| HDM 1 Month Subscription | $6.99 | per month |
| HDM 1 Month With Free Trial | $6.99 | per month |
| HDM 12 Months Subscription | $19.99 | per year |
| HDM 12 Months Subscription | $24.00 | per year |
| HDM 12 Months With Free Trial | $24.00 | per year |


### Knockline

[App page](https://appshunter.io/ios/app/knockline-door-knock-tracker/id6806494453)

This app helps door-to-door sales professionals track their progress in the field. Map neighborhoods, log door statuses and notes, and manage appointments. It works offline and syncs when a connection is available, with team leaderboards and practice training included.

**Highlights:** Offline door logging, Customizable territory maps, Lead status and notes, Appointment scheduling and reminders, Team leaderboards, AI-powered sales training, Exportable lead data

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

**In-app purchases:** none


## Frequently asked questions

### Is Harmony Decision Maker free?

Harmony Decision Maker is free to download, with in-app purchases available.

### Is Knockline free?

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

### Which has better reviews, Harmony Decision Maker or Knockline?

Knockline is rated higher. Harmony Decision Maker averages 4.3 out of 5 from 8 ratings, while Knockline averages 5.0 from 1 ratings.

### Do Harmony Decision Maker or Knockline have ads?

Neither Harmony Decision Maker nor Knockline shows ads.

### Which is updated more often, Harmony Decision Maker or Knockline?

Harmony Decision Maker ships an update every 3 months, and Knockline every 3 days. Most recently, Harmony Decision Maker was updated on October 26, 2026 and Knockline 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.*