# Adiabatic Equation Calculator vs iCertifi Cloud Pro

The clearest difference is review sentiment: Adiabatic Equation Calculator at 100% against iCertifi Cloud Pro's 14%. Adiabatic Equation Calculator also leads on in-app purchases (none vs 9) and iOS requirement (13.0 vs 18.0). iCertifi Cloud Pro's advantage is price (Free vs $7.99) and update cadence (every 3 days vs every 19 months). On ads and device support there is nothing between them.

iCertifi Cloud Pro is free to download; Adiabatic Equation Calculator costs $7.99 up front. iCertifi Cloud Pro sells 9 in-app purchases, starting at $24.99 per month. Adiabatic Equation Calculator asks for nothing beyond the download.

Adiabatic Equation Calculator ships an update every 19 months, iCertifi Cloud Pro every 3 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Adiabatic Equation Calculator | iCertifi Cloud Pro |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Positive reviews | **100.0% of reviews** | 14.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 3 days** |
| Monetization | Paid | **Freemium** |
| Size | 2 MB | 51 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pro Certs Software Ltd](https://appshunter.io/developer/444429696) | [iCertifi](https://appshunter.io/developer/490104127) |

## What reviewers say

### Adiabatic Equation Calculator

[App page](https://appshunter.io/ios/app/adiabatic-equation-calculator/id1511222749)

Calculates minimum circuit protective conductor and earth conductor sizes using the adiabatic equation. Input voltage, Zs value, protective device, conductor type, and material to find the minimum CSA in mm².

**Highlights:** Calculate minimum CPC and earth conductor sizes, Uses adiabatic equation formula, Input voltage and Zs value, Select protective device and rating, Select conductor type and material, Provides results in mm²

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

**In-app purchases:** none


### iCertifi Cloud Pro

[App page](https://appshunter.io/ios/app/icertifi-cloud-pro-sync/id6744922627)

Automate electrical certification with AI-powered photo recognition for circuit schedules and test readings. Get instant BS 7671 compliance checks and technical support. Manage clients and jobs efficiently, all offline on Apple devices.

**Highlights:** AI-powered circuit schedule generation from photos, Automatic test reading extraction from instrument displays, 24/7 technical helpline for BS 7671 compliance, Automatic compliance checks before certificate issuance, Offline functionality for on-site use, Client management and job tracking, Automated calculations for Zs and fuse ratings

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $24.99 | per month |
| 1 Year Subscription | $190.00 | per year |
| Enterprise | $599.99 | per year |
| Team 5 — Up to 5 Seats | $699.00 | per year |
| Team 10 — Up to 10 Seats | $999.99 | per year |
| 50 Credits | $4.99 | one-time |
| 200 credits | $14.99 | one-time |
| 500 Credits | $24.99 | one-time |
| 1000 AI Credits | $29.99 | one-time |


## Frequently asked questions

### Is Adiabatic Equation Calculator free?

Adiabatic Equation Calculator costs $7.99, with no in-app purchases.

### Is iCertifi Cloud Pro free?

iCertifi Cloud Pro is free to download, with in-app purchases available.

### Do Adiabatic Equation Calculator or iCertifi Cloud Pro have ads?

Neither Adiabatic Equation Calculator nor iCertifi Cloud Pro shows ads.

### Which is updated more often, Adiabatic Equation Calculator or iCertifi Cloud Pro?

Adiabatic Equation Calculator ships an update every 19 months, and iCertifi Cloud Pro every 3 days. Most recently, Adiabatic Equation Calculator was updated on November 3, 2026 and iCertifi Cloud Pro on November 5, 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.*