Horizon Detection vs Concrete Calculator Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Horizon Detection
This utility app identifies and highlights horizontal lines within an image. It's designed for users who need to analyze visual data for straight horizontal elements.
- Detects horizontal lines
- Highlights detected lines
- Image analysis tool
- Simple interface
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Detect horizontal lines in an image
Concrete Calculator Tools
This app simplifies concrete volume calculations for professionals and DIYers. It offers flexible unit support and a free rectangular slab calculator, with advanced features available via subscription.
- Flexible unit support (metric/imperial)
- Rectangular slab calculator (free)
- Circular slab calculator
- Circular column calculator
- Post hole calculator
- Slab from area calculator
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Concrete Calculator is the essential app for concreters, builders, contractors, and DIY enthusiasts who want to make concrete calculations quick and easy on the job site. Use your iPhone or iPad—Concrete Calculator is built for you. With a simple, easy-to-use design, Concrete Calculator helps you focus on the pour while the app handles the math. Perfect for Architects, Builders, Concreters, Construction Workers, Contractors, Designers, Engineers, Landscapers, and anyone who needs fast, accurate concrete estimates with ease. Concrete Calculator can save you time and money by reducing errors and material waste on site. WHY CONCRETE CALCULATOR? At Concrete Calculator, our mission is to create best-in-class concrete calculation tools. We’re working toward a sustainable business model so we can keep adding new features and saving you time and money on every job. FEATURES • Flexible Unit Support - Enter dimensions in metric or imperial (feet, inches) and get results in cubic metres, cubic feet, or cubic yards • Rectangular Slab Calculator (Free) - Our core calculator is free forever. Quickly calculate the concrete volume needed for rectangular or square slabs. Ideal for house slabs, patios, driveways, and foundations. PREMIUM FEATURES (Requires Concrete Tools Pro Subscription) • Circular Slab Calculator - Easily calculate concrete for circular slabs, footings, and bases. • Circular Column Calculator - Get the precise concrete volume for circular columns and piers. • Post Hole Calculator - Quickly calculate concrete for one or more post holes, ideal for fencing and decking projects. • Slab from Area Calculator - Great for irregular shapes. Enter the total area and depth to get an instant concrete volume calculation. FEEDBACK If there’s a calculator you’d like to see added, please email feedback@concretecalculator.app. NO ADS EVER We believe that if you’re paying for an app, it should deliver the best experience possible and be ad-free. That’s why Concrete Calculator will always have no ads. SUPPORT Have feedback or questions? We’d love to hear from you! Email us at support@concretecalculator.app. If Concrete Calculator helps you on the job, we’d appreciate an App Store review. Your review helps others find Concrete Calculator. Terms of Service: https://www.concretecalculator.app/en/legal/terms/ Privacy Policy: https://www.concretecalculator.app/en/legal/privacy/ Proudly made in Australia.
Screenshots
Verdict
The clearest difference is rating: Concrete Calculator Tools at 4.7 against Horizon Detection's 1.0. Concrete Calculator Tools also leads on ratings volume (51 vs 1). Horizon Detection's advantage is in-app purchases (none vs 4) and update cadence (fortnightly vs every 2 months). On price, review sentiment, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Concrete Calculator Tools sells 4 in-app purchases, starting at $3.99 per 7 days. Horizon Detection asks for nothing beyond the download.
Concrete Calculator Tools holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Concrete Calculator Tools has 51 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 0% and 0% positive.
Horizon Detection ships an update fortnightly, Concrete Calculator Tools every 2 months. The most recent releases landed on October 30, 2026 and November 4, 2026 respectively.
| Parameter | Horizon Detection | Concrete Calculator Tools |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.7 (51 ratings) — better |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 1 | 51 — better |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.7.2 — better | 18.0 |
| Further details — not scored | ||
| Size | 35 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Hideaki Uchikoshi | Peth Pty Ltd |
Customer experience
Horizon Detection
Concrete Calculator Tools
In-app purchases
Horizon Detection
No in-app purchases
Concrete Calculator Tools
- Weekly Pro3 Days trial$3.997 Days
- Monthly Pro$5.991 Month
- Annual Pro$19.991 Year
- One-Time Purchase$85.00
Questions
Is Horizon Detection free?
Is Concrete Calculator Tools free?
Which has better reviews, Horizon Detection or Concrete Calculator Tools?
Do Horizon Detection or Concrete Calculator Tools have ads?
Which is updated more often, Horizon Detection or Concrete Calculator Tools?
Other comparisons
