# Construction Estimator vs DouDouBearMerchant

The clearest difference is in-app purchases: DouDouBearMerchant at none against Construction Estimator's 10. DouDouBearMerchant also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Construction Estimator sells 10 in-app purchases, starting at $3.99 per month. DouDouBearMerchant asks for nothing beyond the download.

Construction Estimator ships an update every 2 months, DouDouBearMerchant every 2 weeks. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Construction Estimator | DouDouBearMerchant |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 82 MB | 46 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Le Quoc Bao](https://appshunter.io/developer/1861135626) | [DOUDOUBEAR K.K](https://appshunter.io/developer/1892938111) |

## What reviewers say

### Construction Estimator

[App page](https://appshunter.io/ios/app/construction-estimator-tools/id6767523216)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $19.99 | per year |
| Small Tip | $0.99 | one-time |
| 5 PDF Exports | $1.99 | one-time |
| Medium Tip | $1.99 | one-time |
| 7-Day Pro Pass | $1.99 | one-time |
| Trade Quote Pack | $2.99 | one-time |
| 20 PDF Exports | $4.99 | one-time |
| Large Tip | $4.99 | one-time |
| Lifetime | $39.99 | one-time |


### DouDouBearMerchant

[App page](https://appshunter.io/ios/app/doudoubearmerchant/id6791878363)

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

**In-app purchases:** none


## Frequently asked questions

### Is Construction Estimator free?

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

### Is DouDouBearMerchant free?

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

### Do Construction Estimator or DouDouBearMerchant have ads?

Construction Estimator shows ads; DouDouBearMerchant does not.

### Which is updated more often, Construction Estimator or DouDouBearMerchant?

Construction Estimator ships an update every 2 months, and DouDouBearMerchant every 2 weeks. Most recently, Construction Estimator was updated on October 9, 2026 and DouDouBearMerchant on October 11, 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.*