# BatteryNow ! Big Digital Clock vs OperrTel

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.

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.

## The numbers

| Metric | BatteryNow ! Big Digital Clock | OperrTel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/batterynow-big-digital-clock/id622404130/reviews) | **[4.4 (7 ratings)](https://appshunter.io/ios/app/operrtel/id1502437139/reviews)** |
| Number of ratings | 1 | **7** |
| Positive reviews | **40.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Weekly** |
| Monetization | **Ad-supported** | Subscription |
| Size | 9 MB | 135 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [kazuhiko kuroda](https://appshunter.io/developer/460872954) | [Operr Technologies, Inc.](https://appshunter.io/developer/1197568140) |

## What reviewers say

### BatteryNow ! Big Digital Clock

[App page](https://appshunter.io/ios/app/batterynow-big-digital-clock/id622404130)

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.

**Highlights:** Real-time battery monitoring, Battery trend logging, Large digital clock display, Customizable clock colors, Dark mode support, Battery percentage graphs

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### OperrTel

[App page](https://appshunter.io/ios/app/operrtel/id1502437139)

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.

**Highlights:** Mobile business phone service, Voice calls, Instant messaging, Presence services, Office mobility

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Fee | $0.49 | per month |
| Half Yearly Fee | $0.99 | per 6 months |
| Yearly Fee | $2.49 | per year |


## Frequently asked questions

### Is BatteryNow ! Big Digital Clock free?

BatteryNow ! Big Digital Clock is free to download, with no in-app purchases.

### Is OperrTel free?

OperrTel is free to download, with in-app purchases available.

### Which has better reviews, BatteryNow ! Big Digital Clock or OperrTel?

OperrTel is rated higher. BatteryNow ! Big Digital Clock averages 4.0 out of 5 from 1 ratings, while OperrTel averages 4.4 from 7 ratings.

### Do BatteryNow ! Big Digital Clock or OperrTel have ads?

BatteryNow ! Big Digital Clock shows ads; OperrTel does not.

### Which is updated more often, BatteryNow ! Big Digital Clock or OperrTel?

BatteryNow ! Big Digital Clock ships an update every 9 months, and OperrTel weekly. Most recently, BatteryNow ! Big Digital Clock was updated on September 1, 2026 and OperrTel on June 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*