# Bid Mailers Mobile vs KnocKnow

The clearest difference is in-app purchases: Bid Mailers Mobile at none against KnocKnow's 2. Bid Mailers Mobile also leads on ads (none vs shown) and iOS requirement (15.1 vs 17). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. KnocKnow sells 2 in-app purchases, starting at $99.99 per month. Bid Mailers Mobile asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Bid Mailers Mobile against 5.0 for KnocKnow. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Bid Mailers Mobile ships an update fortnightly, KnocKnow every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | Bid Mailers Mobile | KnocKnow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/bid-mailers-mobile/id6741305044/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/knocknow/id6748841288/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 43 MB | 42 MB |
| Requires iOS | **15.1** | 17 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Bid Mailers](https://appshunter.io/developer/1770455683) | [KnocKnow LLC](https://appshunter.io/developer/1827621168) |

## What reviewers say

### Bid Mailers Mobile

[App page](https://appshunter.io/ios/app/bid-mailers-mobile/id6741305044)

This tool automates the creation and sending of custom roof bids for roofing contractors. It measures roofs, calculates pricing, and generates professional bid packages with payment options and a QR code link to a landing page. Streamline customer outreach and close more deals efficiently.

**Highlights:** Automated roof measurement and pitch calculation, Customizable bid compilation, Direct printing and mailing of bids, Inclusion of pricing, payment options, and services, Unique QR code linking to landing pages, Streamlined customer outreach

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

**In-app purchases:** none


### KnocKnow

[App page](https://appshunter.io/ios/app/knocknow/id6748841288)

This app analyzes property data to identify high-conversion doors for door-to-door sales. It helps users find the best areas to work by applying filters for property type, age, and ownership. Maximize your sales efforts by focusing on the most promising leads.

**Highlights:** Property data analysis, ZIP code and address search, Customizable property filters, Map-based zone highlighting, D2D sales route optimization, Data-backed sales decisions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KnocKnow | $99.99 | per month |
| KnocKnow | $899.00 | per year |


## Frequently asked questions

### Is Bid Mailers Mobile free?

Bid Mailers Mobile is free to download, with no in-app purchases.

### Is KnocKnow free?

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

### Which has better reviews, Bid Mailers Mobile or KnocKnow?

Bid Mailers Mobile and KnocKnow are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.

### Do Bid Mailers Mobile or KnocKnow have ads?

KnocKnow shows ads; Bid Mailers Mobile does not.

### Which is updated more often, Bid Mailers Mobile or KnocKnow?

Bid Mailers Mobile ships an update fortnightly, and KnocKnow every 3 weeks. Most recently, Bid Mailers Mobile was updated on October 30, 2026 and KnocKnow on October 30, 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.*