Paper Schmidt vs App4SHM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Paper Schmidt
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The PS App enables You to: - View and analyze instantly the roll profile data from Paper Schmidt PS8000 rebound hammer - Scan QR and barcodes or rolls - Verify the Paper Schmidt PS8000 hammer on a reference Anvil - Analyze the measurement statistics - View the hammer statistics - Add metadata such as images and voice notes into the measurement logbook - Export data to CSV files - Receive notifications about the new firmware availability
App4SHM
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App4SHM is a smartphone application for structural health monitoring (SHM) of bridges or other civil structures to assess their condition after a catastrophic event or when required by authorities and stakeholders. The application interrogates the phone’s internal accelerometer to measure structural accelerations and applies artificial intelligence techniques to detect damage in almost real time. App4SHM resulted from academic research developed at Lusófona University, in particular the Civil Research Group and the Department of Computer Engineering and Information Systems.
Screenshots
Verdict
The clearest difference is ads: App4SHM at none against Paper Schmidt's shown. App4SHM also leads on update cadence (every 4 months vs every 12 months) and iOS requirement (13.0 vs 15.0). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Paper Schmidt ships an update every 12 months, App4SHM every 4 months. Both last shipped on November 7, 2026.
| Parameter | Paper Schmidt | App4SHM |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 12 months | Every 4 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 371 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Screening Eagle Technologies | COFAC |
In-app purchases
Paper Schmidt
No in-app purchases
App4SHM
No in-app purchases
Questions
Is Paper Schmidt free?
Is App4SHM free?
Do Paper Schmidt or App4SHM have ads?
Which is updated more often, Paper Schmidt or App4SHM?
Other comparisons
