WireSizer vs Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WireSizer
This app quickly calculates the correct DC wire gauge needed for any circuit. Simply input voltage, current, and length to determine the optimal wire size, considering voltage drop and ampacity limits. It's suitable for various DC systems up to 60 VDC.
- Instant DC wire size calculation
- Voltage drop percentage selection
- Ampacity limit checks
- Supports various wire types and gauges
- Adjustable for installation conditions
- Materials list for selections
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WireSizer is the fast, accurate, and easy-to-use DC wire size calculator for choosing the correct wire gauge every time. Simply select your DC voltage, current, and total circuit length with flips of your finger. No keyboard required. WireSizer instantly calculates the correct wire gauge for the Voltage Drop percentage you need. WireSizer is ideal for: • Boats and marine electrical systems • RVs, trucks, and cars • Radios and electronics • Solar power and battery-based DC systems • Any low-voltage DC system up to 60 VDC Suitable for both professionals and DIY users. WireSizer automatically calculates the minimum wire size required for your circuit (assuming copper wire), taking Voltage Drop into account for installation and temperature conditions. Results are checked against current-carrying capacity (ampacity) limits to prevent using unsafe undersized wire. Supported values: • Voltage up to 60 VDC • Current up to 500 amps • Total circuit length up to 600 feet or 200 meters • Voltage Drop 1 to 20 percent • AWG wire 18 gauge to 4/0, plus 250 & 300 kcmil • SAE wire 18 gauge to 4/0 • Metric wire 0.75 mm² to 150 mm² WireSizer allows you to fine-tune calculations based on real-world installation conditions: • Engine compartment or other high-temperature environments • Sheathed, bundled, or conduit-run wire • Wire insulation ratings from 60°C to 200°C WireSizer also includes a Materials List so you can record and review all of your wire selections in one place. WireSizer calculates DC wire sizes in accordance with ABYC E-11 (July 2025). For typical low-voltage DC circuits, results generally correspond with ISO 13297:2020. Results are a design aid; final wire selection and installation compliance remain the installer's responsibility. Number and decimal formatting will follow your device's regional and language settings. WireSizer works without an internet connection and contains no ads. Designed exclusively for DC circuits - not for use with AC circuits. Results are a design aid. Final wire selection and installation compliance remain the installer's responsibility. WireSizer will cost you less than the wire scraps you probably throw away at the end of the day.
Clock
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This app is an attendance management solution which uses iPads instead of conventional biometric solutions for internal use. The requirements included a quick time logging from the tablet mounted anywhere in the office and a server side website to show reports on daily, weekly and monthly basis about individuals and teams. Additionally, greeting messages is also included to make the user experience more humane and interactive.
Screenshots
Verdict
The clearest difference is price: Clock at Free against WireSizer's $4.99. Clock also leads on iOS requirement (14.0 vs 26.0). WireSizer's advantage is update cadence (every 5 months vs every 20 months). On ads, in-app purchases 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
Clock is free to download; WireSizer costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
WireSizer ships an update every 5 months, Clock every 20 months. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.
| Parameter | WireSizer | Clock |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.5 (226 ratings) — better | — |
| Positive reviews | 83.8% of reviews | — |
| Number of ratings | 226 — better | — |
| Update frequency | Every 5 months — better | Every 20 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Juggernaut Technology, Inc. | VIRTUAL FORCE PRIVATE LIMITED |
Bugs and requests
WireSizer
Requested features
6 requests- AC calculation for higher voltages
- Support for higher DC voltages (e.g., 150VDC)
- Support for AC voltages (e.g., 240VAC)
- Include actual voltage drop on final screen
- More variables like wire ampacity and cables in a bundle
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- Support for longer lengths
Clock
Not enough reviews yet to summarise bugs or requests.
In-app purchases
WireSizer
No in-app purchases
Clock
No in-app purchases









