Voltage Regulator vs Trinity
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
Trinity
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This app will help you stay connected with the day-to-day life of Trinity Church. With this app you can: watch or listen to past messages; stay up to date with push notifications; and share your favorite messages via social media. Mobile app version: 6.23.8
Screenshots
Verdict
The clearest difference is in-app purchases: Trinity at none against Voltage Regulator's 1. Voltage Regulator's advantage is update cadence (every 9 months vs every 25 months) and iOS requirement (12.0 vs 15.1). On price, ads and device support 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. Trinity asks for nothing beyond the download.
Voltage Regulator ships an update every 9 months, Trinity every 25 months. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.
| Parameter | Voltage Regulator | Trinity |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 9 months — better | Every 25 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple TV — better |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 3 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | Siu Yuen Ho | Trinity Lutheran Church of Pell Lake |
In-app purchases
Voltage Regulator
- Unlock Pro features$1.99
Trinity
No in-app purchases
Questions
Is Voltage Regulator free?
Is Trinity free?
Do Voltage Regulator or Trinity have ads?
Which is updated more often, Voltage Regulator or Trinity?
Other comparisons
