SeaRoll vs Engineer's Unit Converter
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
SeaRoll
This application provides a real-time display of a vessel's rolling angle, allowing users to record and review sessions during navigation. It's designed for simplicity and readability, enabling quick reporting and discussion of roll data.
- Live roll angle display
- One-tap roll recording
- Playback and review of recorded sessions
- Export and share recordings
- Simple and readable interface
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SeaRoll is a maritime clinometer built for real-world conditions. Measure your vesselβs rolling angle in real time, record sessions during navigation, and review the results later. Capture roll data with one tap, then share your recordings with crew, colleagues, or shore teams for quick reporting and discussion. SeaRoll keeps the interface simple and readable, so you can focus on what matters on deck. Key features Live roll angle display One-tap roll recording Playback and review of recorded sessions Export and share recordings SeaRoll is designed for seafarers, surveyors, and anyone who needs a clear roll measurement tool in the field.
Engineer's Unit Converter
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A unit converter built for engineering work rather than for the kitchen. Thirty-two categories, from the everyday ones to the specialist tables you normally go looking for in a handbook: AWG wire gauge, tons of refrigeration, viscosity, water hardness, radiation dose, moment of inertia. EVERY CATEGORY, ALL FREE Length, Area, Pressure/Stress, Mass/Weight, Energy/Work, Power, Force, Torque, Volume, Temperature, Time, Speed, Angle, Data, Frequency, Fuel Economy, Density, Flow, Viscosity, Acceleration, Electric Current, Voltage, Resistance, Electric Charge, Magnetic Flux Density, HVAC Cooling, Water Hardness, Radiation Activity, Radiation Dose, Radiation Equivalent Dose, Moment of Inertia, Wire Gauge. No unlocks, no ad to watch first, no timer. Every category above is open the moment you install. ENGINEERING TOOLS An expression calculator that accepts arithmetic, fractions and scientific notation, so you can type 3/8 or 1.2e-3 straight into the field. An HVAC sizing helper that turns tons of refrigeration into BTU/h, kW and rule-of-thumb airflow. Reference tables for physical constants, thermocouple types and hardness scales. BUILT FOR THE JOB Works fully offline, so it does not care about signal on site. Reads decimal commas and points the way your region writes them. Pin the units you use, hide the ones you never touch, and reorder the rest. Add your own units with a conversion factor. Every conversion is kept in a searchable history you can tap to reuse. No account, no sign-in, no data leaves the device.
Screenshots
Verdict
The clearest difference is ads: SeaRoll at none against Engineer's Unit Converter's shown. On price, update cadence, 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
Both are free to download. SeaRoll sells 1 one-off in-app purchase and Engineer's Unit Converter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
SeaRoll ships an update every 3 weeks, Engineer's Unit Converter monthly. The most recent releases landed on October 15, 2026 and October 26, 2026 respectively.
| Parameter | SeaRoll | Engineer's Unit Converter |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | β |
| Update frequency | Every 3 weeks β better | Monthly |
| Ads | No β better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | β |
| Devices | iPhone | iPhone, iPad β better |
| Requires iOS | 18.6 | 18.0 β better |
| Further details β not scored | ||
| Size | 13 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Vladyslav Yarmak | Jose Gerardo Palma Duran |
In-app purchases
SeaRoll
- Remove Logo$0.99
Engineer's Unit Converter
- Remove Ads$0.99
Questions
Is SeaRoll free?
Is Engineer's Unit Converter free?
Do SeaRoll or Engineer's Unit Converter have ads?
Which is updated more often, SeaRoll or Engineer's Unit Converter?
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