# Ductulator vs Live CRM

The clearest difference is price: Live CRM at Free against Ductulator's $3.99. Live CRM also leads on update cadence (every 2 weeks vs every 2 months) and rating (5.0 vs 4.7). Ductulator's advantage is ratings volume (353 vs 3) and chart position (#61 vs unranked). On ads, in-app purchases, monetization model and device support there is nothing between them.

Live CRM is free to download; Ductulator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Live CRM holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Ductulator has 353 ratings behind it against 3, so its average is the more settled of the two.

Ductulator ships an update every 2 months, Live CRM every 2 weeks. The most recent releases landed on October 26, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Ductulator | Live CRM |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.7 (353 ratings)](https://appshunter.io/ios/app/ductulator-duct-sizing/id1474939475/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/live-crm/id6476432636/reviews)** |
| Number of ratings | **353** | 3 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Best chart rank | **#61** | — |
| Size | 1 MB | 37 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Wassim Murr](https://appshunter.io/developer/1474939474) | [Stewart Neal](https://appshunter.io/developer/1726696511) |

## What reviewers say

### Ductulator

[App page](https://appshunter.io/ios/app/ductulator-duct-sizing/id1474939475)

**Currently charting:** #61 Top Paid · Productivity (US App Store)

Instantly calculate HVAC duct sizes based on airflow, friction rate, or velocity. This tool provides accurate duct dimensions in seconds without needing charts, supporting various duct types and units.

**Highlights:** Instant duct sizing, Friction rate or velocity calculation, Multiple valid duct dimensions, IP and SI units support, Detailed sizing mode, Rectangular, circular, and flexible ducts

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

**In-app purchases:** none

**What reviewers like**

- 👍 Very helpful for duct sizing
- 👍 Easy to use in the field
- 👍 Saves time
- 👍 Seamless imperial/metric transitions
- 👍 Excellent tool for duct design

**What reviewers complain about**

- 👎 App should be free
- 👎 Functionality is pointless for some needs
- 👎 Doesn't help with traditional residential HVAC duct sizing
- 👎 App is a scam
- 👎 Decimal point doesn't work

**Reported bugs**

- Decimal point doesn't work on calculator
- New flex option isn't working properly
- Friction rate can't be changed in the latest version
- Skips duct sizes (e.g., 24-26)

**Requested features**

- Ability to pick duct size and see CFM
- Include flat oval ducts
- Option to select round or square duct
- Ability to enter duct size and get CFM
- Option for flex duct


### Live CRM

[App page](https://appshunter.io/ios/app/live-crm/id6476432636)

Manage your event promotion business on the go. Track ticket sales, manage subscribers, and handle guest lists securely from your mobile device. This app streamlines operations for promoters, clubs, and entertainment companies.

**Highlights:** Ticket scanning and sales tracking, Guest list management, Subscriber engagement tools, Real-time payment management, Customizable business solutions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ductulator free?

Ductulator costs $3.99, with no in-app purchases.

### Is Live CRM free?

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

### Which has better reviews, Ductulator or Live CRM?

Live CRM is rated higher. Ductulator averages 4.7 out of 5 from 353 ratings, while Live CRM averages 5.0 from 3 ratings.

### Do Ductulator or Live CRM have ads?

Neither Ductulator nor Live CRM shows ads.

### Which is updated more often, Ductulator or Live CRM?

Ductulator ships an update every 2 months, and Live CRM every 2 weeks. Most recently, Ductulator was updated on October 26, 2026 and Live CRM on October 13, 2026.

---

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