# RF Haversine vs Progress Clock

The clearest difference is rating: Progress Clock at 5.0 against RF Haversine's 4.3. Progress Clock also leads on review sentiment (100% vs 69%) and price ($0.99 vs $6.99). RF Haversine's advantage is in-app purchases (none vs 4) and ratings volume (25 vs 2). On ads and device support there is nothing between them.

RF Haversine costs $6.99 and Progress Clock $0.99 up front. Progress Clock sells 4 in-app purchases, starting at $0.99 per month. RF Haversine asks for nothing beyond the download.

Progress Clock holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: RF Haversine has 25 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 69% of RF Haversine's written reviews are positive against 100% of Progress Clock's.

RF Haversine ships an update every 2 months, Progress Clock every 5 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | RF Haversine | Progress Clock |
| --- | --- | --- |
| Price | $6.99 | **$0.99** |
| Rating | [4.3 (25 ratings)](https://appshunter.io/ios/app/rf-haversine-radio-profile/id645866008/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/progress-clock/id6446752758/reviews)** |
| Number of ratings | **25** | 2 |
| Positive reviews | 68.8% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 14 MB | 2 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cristinel Bontas](https://appshunter.io/developer/645866051) | [Usukhbayar Batbayar](https://appshunter.io/developer/1532655863) |

## What reviewers say

### RF Haversine

[App page](https://appshunter.io/ios/app/rf-haversine-radio-profile/id645866008)

This tool analyzes radio propagation and link budgets between two locations. It calculates terrain profiles, earth bulge, diffraction loss, and atmospheric attenuation. Generate detailed reports and export data for further analysis.

**Highlights:** Terrain profile analysis, Radio link budget calculation, Earth bulge calculation, Diffraction loss calculation, Atmospheric attenuation calculation, Email radio link reports, Import links from CSV

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

**In-app purchases:** none


### Progress Clock

[App page](https://appshunter.io/ios/app/progress-clock/id6446752758)

Visualize your entire life in weeks and track the passage of time with beautiful progress bars. This app offers inspirational quotes and goal tracking to help you understand what truly matters and find the courage to pursue your aspirations.

**Highlights:** Life Calendar (90-year visualization), Progress tracking for Day, Week, Month, Year, Inspirational quotes on time and courage, Goal tracking and insights, Widgets for at-a-glance tracking, Premium themes and Dark Mode

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Themes | $0.99 | per month |
| Support $5 | $4.99 | one-time |
| Support $25 | $24.99 | one-time |
| Support $100 | $99.99 | one-time |


## Frequently asked questions

### Is RF Haversine free?

RF Haversine costs $6.99, with no in-app purchases.

### Is Progress Clock free?

Progress Clock costs $0.99, and also offers in-app purchases.

### Which has better reviews, RF Haversine or Progress Clock?

Progress Clock is rated higher. RF Haversine averages 4.3 out of 5 from 25 ratings, while Progress Clock averages 5.0 from 2 ratings.

### Do RF Haversine or Progress Clock have ads?

Neither RF Haversine nor Progress Clock shows ads.

### Which is updated more often, RF Haversine or Progress Clock?

RF Haversine ships an update every 2 months, and Progress Clock every 5 months. Most recently, RF Haversine was updated on November 1, 2026 and Progress Clock on November 3, 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.*