# D vs Challenge Coins

The clearest difference is rating: D at 3.7 against Challenge Coins's 2.3. D also leads on device support (3 vs 1) and iOS requirement (14.0 vs 26.2). Challenge Coins's advantage is update cadence (every 2 days vs monthly). On price, review sentiment, ratings volume and ads there is nothing between them.

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

D holds the better App Store score, 3.7 against 2.3. Both are backed by a comparable volume of ratings — 6 and 6 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

D ships an update monthly, Challenge Coins every 2 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | D | Challenge Coins |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (6 ratings)](https://appshunter.io/ios/app/d-switch/id6742772970/reviews)** | [2.3 (6 ratings)](https://appshunter.io/ios/app/challenge-coins/id6759578374/reviews) |
| Number of ratings | 6 | 6 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Free | Free |
| Size | 29 MB | 7 MB |
| Requires iOS | **14.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Diode Dynamics LLC](https://appshunter.io/developer/1282220385) | [Peter Weiss](https://appshunter.io/developer/1783425640) |

## What reviewers say

### D

[App page](https://appshunter.io/ios/app/d-switch/id6742772970)

This app provides advanced control for a 12V accessory switch panel, allowing users to customize and manage vehicle lighting and other accessories via Bluetooth. It offers features like custom button programming, strobing patterns, and integration with vehicle signals for a seamless setup.

**Highlights:** Customizable 8-channel switch panel control, Dedicated backlight bus bar control, Group multiple outputs per button, Strobing patterns for outputs, Bluetooth connectivity with instant response, Integration with vehicle signals via trigger wires, Ignition wire for automatic activation/deactivation

**Features:** macOS Compatibility

**In-app purchases:** none


### Challenge Coins

[App page](https://appshunter.io/ios/app/challenge-coins/id6759578374)

Digitally catalog and share your challenge coin collection. This app allows you to scan and organize your acquired coins, making it easy to showcase your collection to others. Feedback is encouraged to improve the user experience.

**Highlights:** Scan and digitalize challenge coins, Organize coin collection, Share coin collection digitally, User feedback integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is D free?

D is free to download, with no in-app purchases.

### Is Challenge Coins free?

Challenge Coins is free to download, with no in-app purchases.

### Which has better reviews, D or Challenge Coins?

D is rated higher. D averages 3.7 out of 5 from 6 ratings, while Challenge Coins averages 2.3 from 6 ratings.

### Do D or Challenge Coins have ads?

Neither D nor Challenge Coins shows ads.

### Which is updated more often, D or Challenge Coins?

D ships an update monthly, and Challenge Coins every 2 days. Most recently, D was updated on October 24, 2026 and Challenge Coins on October 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.*