NRG Optimizer vs Atomic Clock
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
NRG Optimizer
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NRG Optimizer is a commercial application designed for Operations professionals looking to improve energy savings through smart control of smart devices like LED lighting, occupancy sensors, daylight sensors, electrical outlets and lighting controls.
Atomic Clock
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Always know the exact time with Atomic Clock β Precise Time. Our app synchronizes with official atomic time servers to deliver ultra-accurate time down to the millisecond. Whether youβre coordinating across time zones, managing scientific experiments, or simply want the most reliable clock, this app provides unmatched precision. Features: - Real-time synchronization with global atomic clock servers - 24-hour and 12-hour display options - Beautiful, minimal clock face with dark mode - Works online and offline with last known atomic time - Perfect for professionals, travelers, pilots, scientists, and anyone who values absolute accuracy. An atomic clock is a timekeeping device that measures time based on the vibrations or transitions of atomsβusually cesium or rubidium. Unlike mechanical or quartz clocks, which rely on moving parts or crystals, atomic clocks use the natural oscillations of atoms as their frequency standard. This makes them the most accurate clocks ever developed, capable of maintaining time to within a few billionths of a second per day. Atomic clocks are essential for applications where extreme precision is required, such as GPS navigation, telecommunications, space exploration, scientific experiments, and synchronizing global networks.
Screenshots
Verdict
The clearest difference is iOS requirement: NRG Optimizer at 12.0 against Atomic Clock's 15.1. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | NRG Optimizer | Atomic Clock |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 13 months | β |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 β better | 15.1 |
| Further details β not scored | ||
| Size | 154 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | T.G.L. Inc. | STAN I. C. ALEXANDRU PERSOANA FIZICA AUTORIZATA |
In-app purchases
NRG Optimizer
No in-app purchases
Atomic Clock
No in-app purchases
Questions
Is NRG Optimizer free?
Is Atomic Clock free?
Do NRG Optimizer or Atomic Clock have ads?
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