# QuickSearch PDF Reader vs ColdTempCorr

The clearest difference is review sentiment: QuickSearch PDF Reader at 67% against ColdTempCorr's 0%. QuickSearch PDF Reader also leads on in-app purchases (none vs 2) and update cadence (every 5 weeks vs every 4 months). ColdTempCorr's advantage is price (Free vs $2.99). On ads and device support there is nothing between them.

ColdTempCorr is free to download; QuickSearch PDF Reader costs $2.99 up front. ColdTempCorr sells 2 in-app purchases, starting at $2.99 per 3 months. QuickSearch PDF Reader asks for nothing beyond the download.

QuickSearch PDF Reader ships an update every 5 weeks, ColdTempCorr every 4 months. The most recent releases landed on October 4, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | QuickSearch PDF Reader | ColdTempCorr |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.9 (24 ratings)](https://appshunter.io/ios/app/quicksearch-pdf-reader/id525434384/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | **67.2% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 6 MB | 4 MB |
| Requires iOS | **9.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Olive Toast Software Ltd](https://appshunter.io/developer/285578663) | [AeroKitPro LLC](https://appshunter.io/developer/1049063068) |

## What reviewers say

### QuickSearch PDF Reader

[App page](https://appshunter.io/ios/app/quicksearch-pdf-reader/id525434384)

This app provides lightning-fast text searching within PDF documents, both individually and across your entire library. It also functions as a smooth PDF viewer with intuitive navigation and zooming capabilities.

**Highlights:** Instant text search within PDFs, Cross-document search, Natural page navigation, Pinch-to-zoom and double-tap zoom, Scrub bar for document navigation, Import from other apps and iTunes File Sharing

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Extremely fast PDF search across large document collections
- ⚡ Instantaneous results as you type
- 📚 Handles massive files (1GB+) without crashing
- 🎯 Accurate search functionality for finding keywords
- 💰 Affordable pricing

**What reviewers complain about**

- 🐛 Frequent crashes and stability issues
- ❌ Dropbox integration broken and non-functional
- 📉 No updates for years (last update 4+ years ago)
- 🚫 Missing annotation features (highlighting, underlining, notes)
- 📝 Limited PDF editing capabilities

**Reported bugs**

- Dropbox authentication fails with reCAPTCHA not displaying
- App crashes when opening certain PDF documents
- Search function crashes during use
- Cannot access PDF files on iPad Air 2
- File upload functionality not working

**Requested features**

- Text highlighting and underlining capabilities
- Note-taking and annotation features
- Folder creation and document organization
- Microsoft OneDrive integration
- Google Translate integration


### ColdTempCorr

[App page](https://appshunter.io/ios/app/coldtempcorr/id1639003124)

This professional aviation tool helps pilots calculate necessary cold temperature corrections for flight operations. It ensures compliance with aviation regulations by providing accurate altitude adjustments in cold weather, enhancing safety and efficiency.

**Highlights:** Cold temperature correction calculations, ICAO PANS-OPS and FAA TERPS compliance, Advanced atmospheric calculations, Constant Descent Final Approach planning, Air data conversions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Months subscription | $2.99 | per 3 months |
| One year subscription | $9.99 | per year |


## Frequently asked questions

### Is QuickSearch PDF Reader free?

QuickSearch PDF Reader costs $2.99, with no in-app purchases.

### Is ColdTempCorr free?

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

### Do QuickSearch PDF Reader or ColdTempCorr have ads?

Neither QuickSearch PDF Reader nor ColdTempCorr shows ads.

### Which is updated more often, QuickSearch PDF Reader or ColdTempCorr?

QuickSearch PDF Reader ships an update every 5 weeks, and ColdTempCorr every 4 months. Most recently, QuickSearch PDF Reader was updated on October 4, 2026 and ColdTempCorr on September 22, 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.*