# Spyware Bug Detector vs ReplyRight

The clearest difference is ads: ReplyRight at none against Spyware Bug Detector's shown. Spyware Bug Detector's advantage is update cadence (daily vs every 4 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Spyware Bug Detector sells 2 in-app purchases, starting at $7.99 per 7 days and ReplyRight sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Spyware Bug Detector ships an update daily, ReplyRight every 4 days. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Spyware Bug Detector | ReplyRight |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 4 days |
| Size | 34 MB | 2 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Caleb Williams](https://appshunter.io/developer/1825383700) | [Warren Peters](https://appshunter.io/developer/1591974619) |

## What reviewers say

### Spyware Bug Detector

[App page](https://appshunter.io/ios/app/spyware-bug-detector-security/id6748351912)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $7.99 | per 7 days |
| Full Spyware Protection | $8.99 | per 7 days |


### ReplyRight

[App page](https://appshunter.io/ios/app/replyright-ai-message-writer/id6760967167)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReplyRight Premium Monthly | $2.99 | per month |
| ReplyRight Premium Yearly | $14.99 | per year |


## Frequently asked questions

### Is Spyware Bug Detector free?

Spyware Bug Detector is free to download, with in-app purchases available.

### Is ReplyRight free?

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

### Do Spyware Bug Detector or ReplyRight have ads?

Spyware Bug Detector shows ads; ReplyRight does not.

### Which is updated more often, Spyware Bug Detector or ReplyRight?

Spyware Bug Detector ships an update daily, and ReplyRight every 4 days. Most recently, Spyware Bug Detector was updated on October 16, 2026 and ReplyRight 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.*