# Days + Date + Time Calculator vs AppGuard スマホ制限ロック

The clearest difference is in-app purchases: Days + Date + Time Calculator at none against AppGuard スマホ制限ロック's 3. Days + Date + Time Calculator also leads on iOS requirement (15.0 vs 17.0). AppGuard スマホ制限ロック's advantage is ads (none vs shown) and update cadence (every 9 days vs every 6 weeks). On price and device support there is nothing between them.

Both are free to download. AppGuard スマホ制限ロック sells 3 in-app purchases, starting at $1.99 per month. Days + Date + Time Calculator asks for nothing beyond the download.

Days + Date + Time Calculator ships an update every 6 weeks, AppGuard スマホ制限ロック every 9 days. The most recent releases landed on October 21, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Days + Date + Time Calculator | AppGuard スマホ制限ロック |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (862 ratings)](https://appshunter.io/ios/app/days-plus-date-plus-time-calculator/id816849128/reviews)** | — |
| Number of ratings | **862** | — |
| Positive reviews | 82.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Monetization | Ad-supported | — |
| Size | 18 MB | 7 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [山 钟](https://appshunter.io/developer/798031313) | [Motoki Seki](https://appshunter.io/developer/1895850085) |

## What reviewers say

### Days + Date + Time Calculator

[App page](https://appshunter.io/ios/app/days-plus-date-plus-time-calculator/id816849128)

Calculate the duration between two dates and times. This tool helps you find the exact number of days, hours, and minutes between any two points in time.

**Highlights:** Calculate days between dates, Calculate duration between dates and times, Calculate duration between times, Find exact number of days, Find exact number of hours and minutes

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent app
- 👍 Helpful and useful
- 👍 Great variety of fonts and symbols
- 👍 Easy to use
- 👍 Convenient features

**What reviewers complain about**

- 🐛 Excessive advertising
- 🐛 Compatibility issues with updates
- 🔋 High battery consumption
- 🔒 Privacy concerns with ads

**Reported bugs**

- Crashes and freezes
- Fonts not displaying properly
- Syncing issues across devices

**Requested features**

- Add more font options
- Improve interface and navigation
- Provide a premium ad-free version
- Add more language support
- Improve copying and pasting functionality


### AppGuard スマホ制限ロック

[App page](https://appshunter.io/ios/app/appguard/id6785254908)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月額プラン | $1.99 | per month |
| 年額プラン | $19.99 | per year |
| Premium買切りプラン | $29.99 | one-time |


## Frequently asked questions

### Is Days + Date + Time Calculator free?

Days + Date + Time Calculator is free to download, with no in-app purchases.

### Is AppGuard スマホ制限ロック free?

AppGuard スマホ制限ロック is free to download, with in-app purchases available.

### Do Days + Date + Time Calculator or AppGuard スマホ制限ロック have ads?

Days + Date + Time Calculator shows ads; AppGuard スマホ制限ロック does not.

### Which is updated more often, Days + Date + Time Calculator or AppGuard スマホ制限ロック?

Days + Date + Time Calculator ships an update every 6 weeks, and AppGuard スマホ制限ロック every 9 days. Most recently, Days + Date + Time Calculator was updated on October 21, 2026 and AppGuard スマホ制限ロック on October 3, 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.*