# Impact Key vs ABSign

The clearest difference is in-app purchases: Impact Key at none against ABSign's 1. Impact Key also leads on update cadence (every 4 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ABSign sells 1 one-off in-app purchase. Impact Key asks for nothing beyond the download.

Impact Key ships an update every 4 days, ABSign fortnightly. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Impact Key | ABSign |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Size | 32 MB | 64 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Suzhou IMC Property Development Co., Ltd](https://appshunter.io/developer/1688990756) | [Secure Signing Digital Technology Co., Ltd.](https://appshunter.io/developer/1836767087) |

## What reviewers say

### Impact Key

[App page](https://appshunter.io/ios/app/impact-key/id6745059128)

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

**In-app purchases:** none


### ABSign

[App page](https://appshunter.io/ios/app/absign/id6751777998)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| service fee | $0.99 | one-time |


## Frequently asked questions

### Is Impact Key free?

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

### Is ABSign free?

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

### Do Impact Key or ABSign have ads?

Neither Impact Key nor ABSign shows ads.

### Which is updated more often, Impact Key or ABSign?

Impact Key ships an update every 4 days, and ABSign fortnightly. Most recently, Impact Key was updated on October 8, 2026 and ABSign on October 2, 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.*