Amperes 4 vs Core Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Amperes 4
This app helps you understand your device's charging performance. It diagnoses charging issues, compares different charging methods, and monitors battery health with detailed data and alarms. Get insights into your power setup for optimal device longevity.
- Battery charging rates (mA and wattage)
- Hardware comparison testing
- Detailed charging graphs
- Global charging speed benchmarking
- Intelligent battery alarms
- System vital monitoring
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Take Control of Your Power with Amperes 4 Stop guessing why your phone is charging slowly. Amperes 4 is the ultimate diagnostic tool designed to help you test your charging setup, identify faulty hardware, and monitor your device's health with professional-grade precision. Key Features Battery Charging Rates: Get the mA and wattage data to see exactly how much juice is flowing into your battery. Hardware Comparisons: Side-by-side testing for wired vs. wireless chargers, power banks, and different cable types. Deep Data & Graphs: Visualize your charging sessions with detailed, interactive graphs that track performance over time. Global Benchmarking: Compare your charging speeds with other users online to see if your gear is performing at its peak. Intelligent Battery Alarm: Get notified the moment your battery reaches your desired level to help prolong its lifespan. System Vital Monitoring: Track thermal status, memory usage, and disk space alongside your battery metrics. Professional Testing Tools Customized Logging: Add notes about wire brands or charger models to your tests for future reference. Color-Coded Results: Intuitive UI instantly shows you if a charger is "Good," "Average," or "Bad." Exportable Data: Need the raw numbers? Export your test results for external analysis or record-keeping. Why Amperes 4? Whether you are testing a brand-new GaN charger, verifying a "fast-charging" cable, or troubleshooting a power bank, Amperes 4 gives you the transparency you need to keep your devices running efficiently. Stop wasting time with bad cables. Get the data. Get Amperes 4.
Core Timer
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Take your workouts to the next level with Core Timer, the ultimate timer app for circuits, HIIT, and core training! Whether you’re at home, in the gym, Strength makes it easy to design, save, and run your personalised workouts. Key Features: Custom Workouts: Set work and rest intervals, name exercises, and organise circuits your way. Exercise List: Explore over 1400+ exercises with target muscles and instructions. Check-in: An assistive tool to help you workout alone more safely. Schedule check-ins to make sure you are still okay. Save & Share: Keep your favourite routines for future sessions or share them with friends. Easy-to-Use Timer: Start your workouts with a single tap and focus on your training, not the clock. Edit workouts while running. Flexible Exercise Tracking: Perfect for core, strength, HIIT, or full-body circuit training. Clean Interface: Simple, intuitive, and distraction-free design to keep you moving. Whether you’re a beginner or an experienced athlete, Strngth helps you stay on track, improve consistency, and crush your fitness goals. Start timing your progress today!
Screenshots
Verdict
The clearest difference is price: Core Timer at Free against Amperes 4's $2.99. Core Timer also leads on update cadence (every 6 days vs every 2 months). Amperes 4's advantage is chart position (#35 vs unranked). On ads, in-app purchases, device support and iOS requirement 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
Core Timer is free to download; Amperes 4 costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Amperes 4 ships an update every 2 months, Core Timer every 6 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | Amperes 4 | Core Timer |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.4 (651 ratings) — better | — |
| Positive reviews | 46.7% of reviews | — |
| Number of ratings | 651 — better | — |
| Update frequency | Every 2 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | #35 — better | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 36 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | CrioSoft LLC | James Mowat |
Bugs and requests
Amperes 4
Reported bugs
4 issues- Charging test results in total nonsense
- Doesn't work on iPad in landscape mode
- Login screen freezes
- Incompatible with older devices
Requested features
4 requests- Dark mode option
- Advanced analytics dashboard
- Ability to save charger/wire names
- Ability to monitor charging in the background
Core Timer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Amperes 4
No in-app purchases
Core Timer
No in-app purchases









