Gauge Trainer vs SeamSmart
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Gauge Trainer
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This app trains your ability to estimate and gauge pile sizes. Rendered as simple bars, a deck cut into various piles is represented. By gauging the relative sizes of the bars, and with the total number they represent in mind, the user can estimate the individual pile sizes. By cycling into the next phase the app then displays the correct numbers before starting all over again with a new random situation. Does this really train your estimation skills? It certainly increases your aguility in gauging relative pile sizes, processing the numbers, and it gets you into the habit. The idea is to have you much better prepared when facing the same challenge in real. - Note: This app has the minimum design required to achieve its purpose intentionally applying a "less-is-more" approach. 'Gauge Trainer' was created with passion and driven by commitment but if this is not what you expected, and considering the solid price, please do not hesitate to make use of Appstore's return option or contact me directly.
SeamSmart
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SeamSmart is an iOS application that can support sewing training by presenting metrics providing feedback on how well a user can sew along a given line at a constant distance. To use the app, print one of the provided training sheets on an A4 sheet of cardboard paper, sew along the printed target line along a distance, take a photo of your training sheet, and use the app to analyze your result. SeamSmart is a supplementary iOS application to the research publication Lahaye et al., Howβs Your Sewing? Investigating Metrics to Automatically Assess Sewing Expertise, CHI EA β24
Screenshots
Verdict
The clearest difference is price: SeamSmart at Free against Gauge Trainer's $3.99. SeamSmart also leads on update cadence (every 4 days vs every 31 months). Gauge Trainer's advantage is iOS requirement (11.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
SeamSmart is free to download; Gauge Trainer costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Gauge Trainer ships an update every 31 months, SeamSmart every 4 days. The most recent releases landed on September 8, 2026 and November 4, 2026 respectively.
| Parameter | Gauge Trainer | SeamSmart |
|---|---|---|
| Price | $3.99 | Free β better |
| Update frequency | Every 31 months | Every 4 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 11.0 β better | 17.0 |
| Further details β not scored | ||
| Size | 0 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Ralph Cos | RWTH Aachen University |
In-app purchases
Gauge Trainer
No in-app purchases
SeamSmart
No in-app purchases





