SmartAlarms vs Data Center Engineer Toolkit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmartAlarms
Manage your alarm systems remotely through a web or PC interface. This platform supports various alarm devices, including those using Wi-Fi, GPRS, 3G, 4G, and wired networks.
- Remote alarm system management
- Supports Wi-Fi devices
- Supports GPRS/3G/4G devices
- Supports wired LAN devices
- Web and PC interface access
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Smart Alarm APP is a smart management plateform for alarm systems.It works with WIFI alarm devices as well as alarm devices that communicate via wireless mobile network like GPRS/3G/4G and wired network LAN.User can manage alarm system by logining software on WEB or PC which make management of alarm easier and more convinient.
Data Center Engineer Toolkit
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Running a data center and need quick PUE analysis, cooling tonnage, or floor load checks on site? Tired of spreadsheets for PDU load balancing and cable sizing? This app puts 11 professional data center calculators in your pocket — all offline, no subscription. FREE CALCULATORS: - PUE / DCiE Calculator: Power Usage Effectiveness and Data Center Infrastructure Efficiency with annual energy cost estimates - UPS Runtime: Battery backup runtime with inverter efficiency and power factor - Raised Floor Load & Tile Airflow: Floor tile bearing capacity check plus perforated tile CFM calculation for rack cooling adequacy PRO CALCULATORS (one-time $19.99 unlock): - Rack Heat & Cooling: Cooling tons, airflow CFM, and water flow GPM based on rack power and PUE - Rack Power Density: Amps per rack, power density in kW/m2, cable sizing, and breaker requirements - PDU Load Balance: Three-phase load balancing with imbalance percentage and per-phase capacity - CDU Flow Rate: Liquid cooling flow rate, pressure drop, and pump horsepower for water and glycol - DC Bus Voltage Drop: Cable sizing with voltage drop for copper and aluminum conductors - Breaker Derate Quick-Check: NEC temperature and conductor fill derating with selective coordination ratio check - Fiber Count Planner: Fiber optic cable count with patch panel and splice tray sizing - Fiber Pull Tension: Pulling tension, bend radius, and conduit fill ratio with pass/fail check REFERENCE TABLES (Pro): 42U rack specs, PUE benchmarks, cooling system comparison, wire ampacity, Uptime Institute Tier standards, and fiber optic specifications. Built for facility engineers, infrastructure designers, colocation operators, and data center technicians. All calculations offline. No account or login required.
Screenshots
Verdict
The clearest difference is in-app purchases: SmartAlarms at none against Data Center Engineer Toolkit's 1. SmartAlarms also leads on iOS requirement (13.0 vs 17.0). Data Center Engineer Toolkit's advantage is update cadence (every 2 days vs every 3 weeks). 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. Data Center Engineer Toolkit sells 1 one-off in-app purchase. SmartAlarms asks for nothing beyond the download.
SmartAlarms ships an update every 3 weeks, Data Center Engineer Toolkit every 2 days. The most recent releases landed on September 8, 2026 and September 24, 2026 respectively.
| Parameter | SmartAlarms | Data Center Engineer Toolkit |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) — better | — |
| Positive reviews | 31.6% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 118 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | 瑞发 李 | Shanghai Sheyuan Network Technology Co., Ltd. |
In-app purchases
SmartAlarms
No in-app purchases
Data Center Engineer Toolkit
- Unlock All Calculators$12.99
Questions
Is SmartAlarms free?
Is Data Center Engineer Toolkit free?
Do SmartAlarms or Data Center Engineer Toolkit have ads?
Which is updated more often, SmartAlarms or Data Center Engineer Toolkit?
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