# VRF Refrigerant Charge Calc — Line length refrigerant calc

> Line length refrigerant calc (iPhone/iPad app by HD YAPIMCILIK VE TEKNOLOJI ITHALAT IHRACAT TICARET LIMITED SIRKETI.)

- Source: https://appshunter.io/ios/app/vrf-refrigerant-charge-calc/id6796341058 (this page in markdown: same URL + `.md`)
- Developer: [HD YAPIMCILIK VE TEKNOLOJI ITHALAT IHRACAT TICARET LIMITED SIRKETI](https://appshunter.io/developer/1871741424)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 10 MB
- Languages: American English, Arabic, French (France), German (Germany), Italian, Japanese, Korean, Brazilian Portuguese, Chinese (Simplified, China), European Spanish and 1 more
- Released: 2026-08-10
- Data updated: 2026-08-10
- User reviews in markdown: https://appshunter.io/ios/app/vrf-refrigerant-charge-calc/id6796341058/reviews.md

## What is VRF Refrigerant Charge Calc?

The VRF and multi-split installer's commissioning calculator — combination ratio and additional refrigerant charge in one honest tool.

Enter the outdoor unit's capacity (kW or kBtu/h) and its factory charge, add your indoor units, then log every field-installed liquid-line run: length in meters, diameter from 1/4" to 3/4" (6.35–19.05 mm). The app applies the grams-per-meter table per diameter, shows the additional charge in grams and kilograms, the total charge (factory + additional), and the indoor/outdoor combination ratio with a clear verdict against the 50–130% band.

CHARGE PROFILES
• Generic R-410A g/m table built in
• Carrier-style sample profile from a published service manual
• Custom profile: type your model's own g/m values per diameter — saved on the device

PRO — REQUIRES SEPARATE PURCHASE
• Multi-split / VRF: two or more indoor units (free covers a single split)
• Brand sample and custom charge profiles
• Piping limit checks: total length, farthest equivalent length, outdoor–indoor and indoor–indoor height differences
• Save calculations to history
• Share clean PDF reports

Free forever: single-split additional charge with the generic R-410A profile and plain-text sharing.

Built for gloves and sunlight: big keypad, huge results, Outdoor Bright mode.

Everything stays on your phone — fully offline, no account, no tracking.

Results are planning estimates; always verify with the manufacturer's installation manual.

Note: features listed under PRO require a separate purchase — an auto-renewable subscription (monthly or yearly) or a one-time Lifetime unlock.

———
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://hdappstudio.com/vrfcharge/privacy/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| VRF Charge Pro — Yearly | $14.99 | per year |
| VRF Charge Pro — Monthly | $2.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| VRF Charge Pro — Lifetime | $29.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-10

No release notes.

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All apps by HD YAPIMCILIK VE TEKNOLOJI ITHALAT IHRACAT TICARET LIMITED SIRKETI: https://appshunter.io/developer/1871741424

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-10.*