# 10,000,000 HD Wallpapers vs CORE Calculator App

The clearest difference is price: CORE Calculator App at Free against 10,000,000 HD Wallpapers's $0.99. CORE Calculator App also leads on rating (5.0 vs 4.4) and review sentiment (100% vs 66%). 10,000,000 HD Wallpapers's advantage is in-app purchases (none vs 3) and iOS requirement (8.1 vs 14.0). On ratings volume, ads and device support there is nothing between them.

CORE Calculator App is free to download; 10,000,000 HD Wallpapers costs $0.99 up front. CORE Calculator App sells 3 in-app purchases, starting at $4.99 per month. 10,000,000 HD Wallpapers asks for nothing beyond the download.

CORE Calculator App holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 17 and 11 respectively. Written reviews point the same way: 66% of 10,000,000 HD Wallpapers's written reviews are positive against 100% of CORE Calculator App's.

10,000,000 HD Wallpapers ships an update every 20 months, CORE Calculator App every 3 months. The most recent releases landed on November 1, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 10,000,000 HD Wallpapers | CORE Calculator App |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.4 (17 ratings)](https://appshunter.io/ios/app/10000000-hd-wallpapers/id416297374/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/core-calculator-app/id1447118499/reviews)** |
| Number of ratings | **17** | 11 |
| Positive reviews | 66.2% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 24 MB | 148 MB |
| Requires iOS | **8.1** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Dating DNA, Inc.](https://appshunter.io/developer/295453837) | [AsInt Inc.](https://appshunter.io/developer/1438397626) |

## What reviewers say

### 10,000,000 HD Wallpapers

[App page](https://appshunter.io/ios/app/10000000-hd-wallpapers/id416297374)

Access over 10 million high-definition wallpapers for your iPhone or iPad, searchable by any topic. Personalize images with text, organize favorites, and share them easily across social media and messaging platforms.

**Highlights:** Over 10 million HD wallpapers, Searchable by any topic, Designed for Retina and high-resolution displays, One-tap sharing to social media and messaging, Personalize images with text, Organize favorites in folders, Upload and edit your own images

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

**In-app purchases:** none

**What reviewers like**

- 🖼️ Massive collection of wallpapers
- 🔍 Excellent search functionality
- 👍 User-friendly interface
- 🎨 Wide variety of categories
- 💰 Good value for money

**What reviewers complain about**

- 🐛 Frequent crashes and freezing
- ⏱️ Slow loading times
- 🔋 High battery drain
- 📱 Compatibility issues with newer devices
- 🎯 Inconsistent image quality

**Reported bugs**

- App crashes on launch or when opening
- Freezing when saving pictures
- App initialization fails
- Blacking out when opened
- Incompatibility with iPhone 6+ and newer iOS versions

**Requested features**

- Content filter options (strict/moderate/off)
- Improved loading speed
- Better image quality and wider aspect ratios
- Fix for zoomed-in picture display
- More diverse content categories


### CORE Calculator App

[App page](https://appshunter.io/ios/app/core-calculator-app/id1447118499)

This app provides inspectors in the oil and gas industry with essential calculations for asset integrity. It offers tools for determining Tmin, MAWP, corrosion rates, and remaining life based on industry standards.

**Highlights:** Tmin calculations, MAWP calculations, Corrosion rate calculations, Remaining life determination, Construction material information, Damage mechanism identification

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Materials Lookup | $4.99 | per month |
| Damage Mech Screener | $9.99 | per month |
| Materials Lookup | $5.99 | one-time |


## Frequently asked questions

### Is 10,000,000 HD Wallpapers free?

10,000,000 HD Wallpapers costs $0.99, with no in-app purchases.

### Is CORE Calculator App free?

CORE Calculator App is free to download, with in-app purchases available.

### Which has better reviews, 10,000,000 HD Wallpapers or CORE Calculator App?

CORE Calculator App is rated higher. 10,000,000 HD Wallpapers averages 4.4 out of 5 from 17 ratings, while CORE Calculator App averages 5.0 from 11 ratings.

### Do 10,000,000 HD Wallpapers or CORE Calculator App have ads?

Neither 10,000,000 HD Wallpapers nor CORE Calculator App shows ads.

### Which is updated more often, 10,000,000 HD Wallpapers or CORE Calculator App?

10,000,000 HD Wallpapers ships an update every 20 months, and CORE Calculator App every 3 months. Most recently, 10,000,000 HD Wallpapers was updated on November 1, 2026 and CORE Calculator App on October 17, 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.*