BatteryNow ! Big Digital Clock vs OperrTel
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BatteryNow ! Big Digital Clock
Monitor your device's battery life with real-time and trend graphs. Features a large, customizable digital clock with color options and dark mode support. Track battery percentage changes over time.
- Real-time battery monitoring
- Battery trend logging
- Large digital clock display
- Customizable clock colors
- Dark mode support
- Battery percentage graphs
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BatteryNow is battery monitoring app in two ways: Real-time monitoring and Trend monitoring (logging). 1, Real-time monitoring : You can check the battery level with line plots data graphically. 2, Trend monitoring : It is save the battery data internally every one minute, then you can see a graph of how change your battery level in long period. 3, Big Digital Clock [ Real-time monitoring feature ] 1, Display the Battery % status in three colors Green, Yellow and Red. Green > 45% > Yellow > 25% > Red 2, Battery% graph. Range of scrolling screen up to 8 times. Chart update interval can be change between from 0.1 pixel / sec to 2.0 pixel / sec. 3, Minute time line plot. This graph will 100% every hour. 4, Digital clock. There are eight colors option for digital clock. 5, Dark mode supported. 6, Ad
OperrTel
This business phone service app provides full mobility for its customers. Manage voice calls, instant messaging, and presence services from your mobile device, effectively carrying your office in your pocket.
- Mobile business phone service
- Voice calls
- Instant messaging
- Presence services
- Office mobility
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The Operrtel App is a business phone service app that enables complete mobility for Operrtel customers. Stay connected when you're away from your office phone, or replace your desk phone altogether when you utilize voice, instant messaging, and presence services from your mobile device. It's like carrying your office in the palm of your hand. Please check our Terms & Conditions: https://www.operrtel.com/terms-of-service.html Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: BatteryNow ! Big Digital Clock at 40% against OperrTel's 0%. BatteryNow ! Big Digital Clock also leads on in-app purchases (none vs 3). OperrTel's advantage is ads (none vs shown) and rating (4.4 vs 4.0). On price 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. OperrTel sells 3 in-app purchases, starting at $0.49 per month. BatteryNow ! Big Digital Clock asks for nothing beyond the download.
OperrTel holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: OperrTel has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 40% of BatteryNow ! Big Digital Clock's written reviews are positive against 0% of OperrTel's, so the app with the better star average is not the one people write more warmly about.
BatteryNow ! Big Digital Clock ships an update every 9 months, OperrTel weekly. The most recent releases landed on September 1, 2026 and June 24, 2026 respectively.
| Parameter | BatteryNow ! Big Digital Clock | OperrTel |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 4.4 (7 ratings) — better |
| Positive reviews | 40.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 1 | 7 — better |
| Update frequency | Every 9 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Subscription |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 135 MB |
| Age rating | 4+ | 4+ |
| Developer | kazuhiko kuroda | Operr Technologies, Inc. |
Customer experience
BatteryNow ! Big Digital Clock
OperrTel
In-app purchases
BatteryNow ! Big Digital Clock
No in-app purchases
OperrTel
- Monthly Fee$0.491 Month
- Half Yearly Fee$0.996 Months
- Yearly Fee$2.491 Year
Questions
Is BatteryNow ! Big Digital Clock free?
Is OperrTel free?
Which has better reviews, BatteryNow ! Big Digital Clock or OperrTel?
Do BatteryNow ! Big Digital Clock or OperrTel have ads?
Which is updated more often, BatteryNow ! Big Digital Clock or OperrTel?
Other comparisons
