Voltage Regulator vs Mountain Crane
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Voltage Regulator
Calculate resistor combinations for adjustable voltage regulators. This tool helps electronics hobbyists and professionals determine desired output voltages and resistor values. Results can be exported and shared easily.
- Adjustable voltage regulator support
- Calculate resistor combinations
- Determine resistor values
- Export results to CSV
- Share CSV via iCloud/AirDrop
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This app is a voltage regulator calculator. It is is suitable for electronics hobbyist, electronic engineers or professionals. Features * Support 3-terminals adjustable voltage regulators * To find out combinations of 2 resistors making a desired output voltage * Calculate resistor values / output voltage * Export results to CSV file * Share CSV file to iCloud Drive (For iOS8 or later) * Share CSV file via AirDrop (For iOS7 or later) Feature in PRO only * Calculate thermal resistance of heatsink * Selectable 1%, 5% resistors * No ads * No limitations
Mountain Crane
This app provides essential tools for mountain operations, including daily videos, incident reporting, and load charts. It also offers a message feature for reaching higher altitudes and access to certificates.
- Daily videos
- Reach Higher Message
- Incident Report Forms
- Certificates
- Load Charts
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Features Include: - Daily Videos - Reach Higher Message - Incident Report Forms - Certificates - Load Charts, and more
Screenshots
Verdict
The clearest difference is in-app purchases: Mountain Crane at none against Voltage Regulator's 1. Mountain Crane also leads on update cadence (every 3 weeks vs every 9 months) and rating (5.0 vs 4.8). Voltage Regulator's advantage is iOS requirement (12.0 vs 15.1). On price, review sentiment, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Voltage Regulator sells 1 one-off in-app purchase. Mountain Crane asks for nothing beyond the download.
Mountain Crane holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 5 and 12 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Voltage Regulator ships an update every 9 months, Mountain Crane every 3 weeks. The most recent releases landed on October 21, 2026 and October 14, 2026 respectively.
| Parameter | Voltage Regulator | Mountain Crane |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5 ratings) | 5.0 (12 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 5 | 12 — better |
| Update frequency | Every 9 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 3 MB | 103 MB |
| Age rating | 4+ | 4+ |
| Developer | Siu Yuen Ho | Mountain Crane |
Customer experience
Voltage Regulator
Mountain Crane
In-app purchases
Voltage Regulator
- Unlock Pro features$1.99
Mountain Crane
No in-app purchases
Questions
Is Voltage Regulator free?
Is Mountain Crane free?
Which has better reviews, Voltage Regulator or Mountain Crane?
Do Voltage Regulator or Mountain Crane have ads?
Which is updated more often, Voltage Regulator or Mountain Crane?
Other comparisons
