# Simple In/Out vs DIY Units Conversion

The clearest difference is review sentiment: DIY Units Conversion at 100% against Simple In/Out's 34%. DIY Units Conversion also leads on rating (5.0 vs 3.2) and iOS requirement (12.0 vs 17.0). Simple In/Out's advantage is update cadence (fortnightly vs every 25 months) and ratings volume (207 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

DIY Units Conversion holds the better App Store score, 5.0 against 3.2. That said, the two scores are not equally well evidenced: Simple In/Out has 207 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 34% of Simple In/Out's written reviews are positive against 100% of DIY Units Conversion's.

Simple In/Out ships an update fortnightly, DIY Units Conversion every 25 months. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Simple In/Out | DIY Units Conversion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (207 ratings)](https://appshunter.io/ios/app/simple-inout/id440781200/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/diy-units-conversion/id6475029001/reviews)** |
| Number of ratings | **207** | 1 |
| Positive reviews | 34.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 25 months |
| Monetization | Free | Free |
| Size | 35 MB | 31 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Simply Made Apps Inc](https://appshunter.io/developer/440781203) | [DingXin Cheng](https://appshunter.io/developer/1645815345) |

## What reviewers say

### Simple In/Out

[App page](https://appshunter.io/ios/app/simple-inout/id440781200)

Easily manage employee presence with an intuitive in/out board. Quickly update your status, receive notifications, and even automate updates based on location or network. Ideal for busy offices.

**Highlights:** Easy to read status board, Admin user management, Automatic status updates (location, network), Geofencing and beacon support, Notifications for status changes, Scheduled status updates, Company announcements

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and intuitive user interface
- 🎯 Effective at-a-glance status tracking for teams
- 🔄 Automatic geofencing capability when working
- ⚡ Easy manual check-in/check-out functionality
- 🌐 Web and mobile app integration

**What reviewers complain about**

- 🐛 Frequent app crashes and freezing
- 📍 Unreliable geofencing accuracy and functionality
- 🔋 Significant battery drain from location services
- ⚠️ Inconsistent automatic status updates
- 🔐 Settings reset after app updates

**Reported bugs**

- App crashes on launch or shortly after opening
- Geofencing triggers check-in/out at wrong locations (up to 10+ km away)
- Automatic status updates fail randomly
- Settings and login information lost after app updates
- App logs out unexpectedly without user action

**Requested features**

- Apple Watch compatibility for status changes
- WiFi-based location detection instead of GPS
- Scheduled geofencing (e.g., M-F 8am-8pm only)
- Time display on main status screen
- Additional status options (Lunch, Meeting, Vacation, Sick)


### DIY Units Conversion

[App page](https://appshunter.io/ios/app/diy-units-conversion/id6475029001)

Create your own personalized unit conversion library by adding, removing, and reordering conversions. Tailor the app to your specific needs, focusing on the units you use most frequently.

**Highlights:** Customizable conversion library, Add, remove, and reorder units, Supports various scientific fields, User-defined conversion sets

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Simple In/Out free?

Simple In/Out is free to download, with no in-app purchases.

### Is DIY Units Conversion free?

DIY Units Conversion is free to download, with no in-app purchases.

### Which has better reviews, Simple In/Out or DIY Units Conversion?

DIY Units Conversion is rated higher. Simple In/Out averages 3.2 out of 5 from 207 ratings, while DIY Units Conversion averages 5.0 from 1 ratings.

### Do Simple In/Out or DIY Units Conversion have ads?

Neither Simple In/Out nor DIY Units Conversion shows ads.

### Which is updated more often, Simple In/Out or DIY Units Conversion?

Simple In/Out ships an update fortnightly, and DIY Units Conversion every 25 months. Most recently, Simple In/Out was updated on October 24, 2026 and DIY Units Conversion on October 10, 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.*