# Sign vs ATTC

The clearest difference is rating: ATTC at 5.0 against Sign's 1.8. ATTC also leads on in-app purchases (none vs 1) and iOS requirement (15.2 vs 18.0). Sign's advantage is update cadence (every 3 months vs every 27 months) and ratings volume (5 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Sign sells 1 one-off in-app purchase. ATTC asks for nothing beyond the download.

ATTC holds the better App Store score, 5.0 against 1.8. That said, the two scores are not equally well evidenced: Sign has 5 ratings behind it against 1, so its average is the more settled of the two.

Sign ships an update every 3 months, ATTC every 27 months. Both last shipped on October 16, 2026.

## The numbers

| Metric | Sign | ATTC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (5 ratings)](https://appshunter.io/ios/app/sign-up-sheet/id744214128/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/attc/id6467386211/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | 26.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 27 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 13 MB | 6 MB |
| Requires iOS | 18.0 | **15.2** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Orionbelt.com LLC](https://appshunter.io/developer/284944290) | [Dähler Competition Line (Deutschland) GmbH](https://appshunter.io/developer/1708557301) |

## What reviewers say

### Sign

[App page](https://appshunter.io/ios/app/sign-up-sheet/id744214128)

This iPad app digitizes paper signup sheets, allowing for unlimited custom lists with up to six configurable fields. Personalize the app's appearance with custom colors, logos, and background images. Export collected data easily via email or spreadsheet after events.

**Highlights:** Replace paper signup sheets, Unlimited custom lists, Up to 6 custom fields, Field type selection, Customizable appearance (color, logo, background), Password protection, Data export via email/spreadsheet

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add Un-Limited Sing-Ups | $7.99 | one-time |


### ATTC

[App page](https://appshunter.io/ios/app/attc/id6467386211)

Enhance your BMW's security and performance with an advanced anti-theft system. This device offers multiple driving modes, including an anti-theft feature that disables the accelerator pedal to prevent unauthorized use. Control it via your smartphone or a remote for a more responsive engine and potential fuel savings.

**Highlights:** Anti-theft mode, Valet mode, Multiple Power Pedal modes, Smartphone control, Remote control, 10% quicker acceleration, Fuel savings

**In-app purchases:** none


## Frequently asked questions

### Is Sign free?

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

### Is ATTC free?

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

### Which has better reviews, Sign or ATTC?

ATTC is rated higher. Sign averages 1.8 out of 5 from 5 ratings, while ATTC averages 5.0 from 1 ratings.

### Do Sign or ATTC have ads?

Neither Sign nor ATTC shows ads.

### Which is updated more often, Sign or ATTC?

Sign ships an update every 3 months, and ATTC every 27 months. Most recently, Sign was updated on October 16, 2026 and ATTC on October 16, 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.*