SlopePro vs ZNP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SlopePro
This utility app assists construction surveyors and grading professionals by quickly calculating slope percentages between grade stakes using laser level and grade rod measurements. It allows for easy data entry, project saving, and offline functionality, designed for field use with a simple interface.
- Stake-by-stake data entry
- Cut and fill adjustments
- Automatic slope percentage calculations
- Unlimited project saving
- Offline functionality
- Large, easy-to-tap buttons
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SlopePro is the essential tool for construction surveyors and grading professionals working in the field. Quickly calculate slope percentages between grade stakes using your laser level and grade rod measurements. FEATURES: • Easy stake-by-stake data entry with laser readings • Cut and fill adjustments with simple toggle • Automatic slope percentage calculations • Save unlimited projects for later reference • View all stakes and slopes at a glance • Edit or delete individual stakes as needed • Works completely offline - no internet required PERFECT FOR: • Construction Surveyors • Grading Contractors • Site Superintendents • Civil Engineers • Land Development Professionals HOW IT WORKS: 1. Create a new project and name it 2. Shoot your first grade stake with your laser level 3. Enter the laser reading and cut/fill amount from the stake 4. Add the distance to the next stake 5. Repeat for each stake in your run 6. Instantly see slope percentages between consecutive stakes DESIGNED FOR THE FIELD: Built with construction professionals in mind, SlopePro features large, easy-to-tap buttons and a simple interface that works even in bright sunlight. All your data is stored locally on your device and never leaves your iPhone - your project data is completely private. Whether you're setting up drainage, installing utilities, or grading a parking lot, SlopePro helps you verify your work is on grade and saves you time in the field. No subscriptions. No ads. Just a powerful calculation tool that does exactly what you need.
ZNP
Facilitates real-time, simultaneous interpretation for seamless and natural conversations. Experience clear communication across language barriers.
- Real-time interpretation
- Simultaneous translation
- Natural conversation flow
- Clear communication
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Real-time simultaneous interpretation for clear, natural conversations.
Screenshots
Verdict
The clearest difference is price: ZNP at Free against SlopePro's $2.99. ZNP also leads on ratings volume (6 vs 1). SlopePro's advantage is rating (5.0 vs 3.2). On ads, in-app purchases, device support and iOS requirement 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
ZNP is free to download; SlopePro costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SlopePro holds the better App Store score, 5.0 against 3.2. That said, the two scores are not equally well evidenced: ZNP has 6 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | SlopePro | ZNP |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | 3.2 (6 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 6 — better |
| Update frequency | — | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 2 MB | 129 MB |
| Age rating | 4+ | 4+ |
| Developer | Jeffrey Yost | Shenzhen Cantianshu Information Technology Co., Ltd |
Customer experience
SlopePro
ZNP
In-app purchases
SlopePro
No in-app purchases
ZNP
No in-app purchases









