# Schmidt Rebound Hammer vs StraboField

The clearest difference is review sentiment: Schmidt Rebound Hammer at 100% against StraboField's 50%. Schmidt Rebound Hammer also leads on rating (5.0 vs 4.5). StraboField's advantage is update cadence (every 2 weeks vs every 2 months) and monetization model (free vs ad-supported). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Schmidt Rebound Hammer holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: StraboField has 19 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Schmidt Rebound Hammer's written reviews are positive against 50% of StraboField's.

Schmidt Rebound Hammer ships an update every 2 months, StraboField every 2 weeks. The most recent releases landed on August 22, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Schmidt Rebound Hammer | StraboField |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/schmidt-rebound-hammer/id1239435876/reviews)** | [4.5 (19 ratings)](https://appshunter.io/ios/app/strabofield/id1555903455/reviews) |
| Number of ratings | 2 | **19** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 377 MB | 87 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Screening Eagle Technologies](https://appshunter.io/developer/1515215362) | [The University of Kansas](https://appshunter.io/developer/726307325) |

## What reviewers say

### Schmidt Rebound Hammer

[App page](https://appshunter.io/ios/app/schmidt-rebound-hammer/id1239435876)

This app enhances the functionality of Schmidt rebound hammers for concrete and rock testing. It automates calculations, allows custom curves, tracks verification, and generates PDF reports. Collaborate and share data easily through cloud synchronization.

**Highlights:** Automated rebound number calculation, Custom curve support, Verification tracking, Logbook for reporting, PDF report generation, Cloud-based sharing and synchronization

**In-app purchases:** none


### StraboField

[App page](https://appshunter.io/ios/app/strabofield/id1555903455)

This mobile application helps geologists record field observations, capture data like photos and sketches, and create geologic maps. It supports various geological subdisciplines and allows for offline use with data syncing capabilities.

**Highlights:** Record field data with photos, sketches, and notes, Collect georeferenced orientation and spatial data, Use custom or built-in basemaps offline, Create multi-scale observations with nested Spots, Organize and back up data locally or to StraboSpot.org, Fully functional offline for remote fieldwork

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

**In-app purchases:** none


## Frequently asked questions

### Is Schmidt Rebound Hammer free?

Schmidt Rebound Hammer is free to download, with no in-app purchases.

### Is StraboField free?

StraboField is free to download, with no in-app purchases.

### Which has better reviews, Schmidt Rebound Hammer or StraboField?

Schmidt Rebound Hammer is rated higher. Schmidt Rebound Hammer averages 5.0 out of 5 from 2 ratings, while StraboField averages 4.5 from 19 ratings.

### Do Schmidt Rebound Hammer or StraboField have ads?

Neither Schmidt Rebound Hammer nor StraboField shows ads.

### Which is updated more often, Schmidt Rebound Hammer or StraboField?

Schmidt Rebound Hammer ships an update every 2 months, and StraboField every 2 weeks. Most recently, Schmidt Rebound Hammer was updated on August 22, 2026 and StraboField on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*