Cable Calc+ vs Ampere
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cable Calc+
This tool assists electrical contractors by calculating cable selection and voltage drop for installations up to 25KW and 100A. It supports various cable types and includes reference methods, educational videos, and a guide to electrical test instruments.
- Cable selection calculator
- Voltage drop calculator
- Supports various cable types (SWA, Fire proof, Tri rated, Twin and earth)
- Reference methods
- Electrical test instrument guide
- Educational videos
Read full descriptionHide full description
For over 100 years, Megger has been the premier provider of electrical test equipment and measuring instruments for power applications. The free iPhone app includes a Cable Calc tool useful to every electrical contractor Features: A comprehensive cable selection & volt drop calculator tool. for installations up 25KW 100A. Cables include: √ SWA 2, 3 and 4 core XLPE √ SWA 2, 3 7 4 core PVC √ Fire proof √ Tri rated √ Twin and earth With a range of reference methods A guide to the use of electrical test instruments Videos Plus more
Ampere
Measure your device's charging speed with different chargers, cables, and wireless sources. Track app battery usage, estimate remaining time for activities, and compare charging accessories to find the best ones.
- Measure charging speed
- Compare chargers and cables
- Estimate remaining usage time
- Track app battery usage
- Create custom reference tables
Read full descriptionHide full description
Introducing Ampere Battery Check - your ultimate companion for everything battery, charging, and power on your device. Ampere gives you a fast, accurate way to measure real charging speed, compare chargers and cables, and understand exactly how your battery is performing right now. Whether you want to find the fastest charger in your home, test a new USB-C cable, or check if a wireless pad is really delivering the watts it promises, Ampere puts the numbers in your hand in seconds. KEY FEATURES - Accurate charging speed test: measure real-time charging current (mA) from any charger, cable, or wireless pad. - Charger comparison: benchmark wall adapters, car chargers, power banks, and wireless chargers side by side. - Cable & wire testing: instantly spot slow, damaged, or low-quality USB, Lightning, and USB-C cables. - Wireless charging check: verify that your Qi or MagSafe pad delivers the speed it advertises. - Battery health insights: track capacity, voltage, temperature, and overall condition over time. - Remaining usage time: see how long your battery will last for browsing, calls, video, music, gaming, and standby. - Charging history & logs: review past charging sessions to find the best charger for daily use. - Smart notifications: get alerts when charging is complete or when a slow charger is detected. - Clean, simple interface: clear readouts, no clutter, no confusing jargon. WHY AMPERE - Save time by always picking the fastest working charger. - Save money by identifying bad cables before you replace your device. - Protect your battery by avoiding weak or unstable power sources. - Travel smart by testing hotel, airport, and car chargers on the go. PERFECT FOR - Anyone frustrated by slow charging. - Users comparing new chargers, power banks, or MagSafe accessories. - Tech enthusiasts who want real data about their device's power. - Travelers, students, gamers, and heavy phone users. HOW IT WORKS 1. Open Ampere Battery Check. 2. Plug in your charger or place your device on a wireless pad. 3. Watch live charging speed, voltage, and battery status update in real time. 4. Compare results and choose the best charger and cable for you. Stop guessing which charger or cable is actually fast. Download Ampere Battery Check today and take full control of your battery, charging speed, and device power - all from one beautifully simple app.
Screenshots
Verdict
The clearest difference is in-app purchases: Cable Calc+ at none against Ampere's 1. Cable Calc+ also leads on ads (none vs shown) and rating (4.0 vs 3.6). Ampere's advantage is ratings volume (12 vs 2). On price, update cadence 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. Ampere sells 1 one-off in-app purchase. Cable Calc+ asks for nothing beyond the download.
Cable Calc+ holds the better App Store score, 4.0 against 3.6. That said, the two scores are not equally well evidenced: Ampere has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 38% of Cable Calc+'s written reviews are positive against 21% of Ampere's.
Cable Calc+ ships an update every 4 months, Ampere every 3 months. The most recent releases landed on October 13, 2026 and October 26, 2026 respectively.
| Parameter | Cable Calc+ | Ampere |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (2 ratings) — better | 3.6 (12 ratings) |
| Positive reviews | 37.5% of reviews — better | 20.9% of reviews |
| Number of ratings | 2 | 12 — better |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 8.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 3 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Megger | CrioSoft LLC |
Customer experience
Cable Calc+
Ampere
Bugs and requests
Cable Calc+
Not enough reviews yet to summarise bugs or requests.
Ampere
Reported bugs
3 issues- Crashes on launch
- Fails to complete testing
- Incorrect wattage readings
Requested features
3 requests- Historical data logging
- Real-time monitoring
- Wireless charging support
In-app purchases
Cable Calc+
No in-app purchases
Ampere
- Disable Ads$0.99
