# Date&Datetime Calculator vs Generator Power Advisor

The clearest difference is ads: Generator Power Advisor at none against Date&Datetime Calculator's shown. Date&Datetime Calculator's advantage is iOS requirement (9.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Date&Datetime Calculator ships an update every 5 days, Generator Power Advisor every 3 days. The most recent releases landed on October 27, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Date&Datetime Calculator | Generator Power Advisor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/generator-power-advisor/id6795178257/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | — | Free |
| Size | 26 MB | 2 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Luoyang Xinyue Network Technology Co., Ltd](https://appshunter.io/developer/1611167431) | [MICHAEL E SAUR](https://appshunter.io/developer/6795178259) |

## What reviewers say

### Date&Datetime Calculator

[App page](https://appshunter.io/ios/app/date-and-datetime-calculator/id1611167429)

**Features:** macOS Compatibility

**In-app purchases:** none


### Generator Power Advisor

[App page](https://appshunter.io/ios/app/generator-power-advisor/id6795178257)

This app helps you determine if your generator can safely power your appliances. It considers factors like fuel type, temperature, and elevation for realistic recommendations, offering clear Safe, Near Limit, or Unsafe guidance.

**Highlights:** Instant load calculations, Support for gasoline and propane, Built-in generator database, Air conditioner startup assistance, Environmental adjustments, Offline operation, Safe/Near Limit/Unsafe recommendations

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

**In-app purchases:** none


## Frequently asked questions

### Is Date&Datetime Calculator free?

Date&Datetime Calculator is free to download, with no in-app purchases.

### Is Generator Power Advisor free?

Generator Power Advisor is free to download, with no in-app purchases.

### Do Date&Datetime Calculator or Generator Power Advisor have ads?

Date&Datetime Calculator shows ads; Generator Power Advisor does not.

### Which is updated more often, Date&Datetime Calculator or Generator Power Advisor?

Date&Datetime Calculator ships an update every 5 days, and Generator Power Advisor every 3 days. Most recently, Date&Datetime Calculator was updated on October 27, 2026 and Generator Power Advisor on October 9, 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.*