Unit Converter vs ErgSpeed Rowing Logbook
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Unit Converter
Easily convert measurements between various units with a clean and intuitive interface. Supports over 20 categories including length, mass, temperature, and volume.
- Converts between units
- Supports 20+ categories
- Clean interface design
- Intuitive navigation
- Free to use
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A simple but elegant Free Unit Converter. Convert the numbers from one unit to another. The goal of this application to make it simple to use with clean interface design. Application supports 20 different categories which includes : * Acceleration * Angle * Area * Bytes * Current * Energy * Force * Illumination * Inductance * Length * Magnitude * Mass * Power * Pressure * Radiation * Temperature * Time * Torque * Velocity * Volume Tip: Quickly move to the different category by tapping on category name.
ErgSpeed Rowing Logbook
Log and analyze indoor rowing workouts with detailed metrics, powerful calculators, and visual progress tracking. Features include AI-powered data scanning, performance charts, and race planning tools to help you train smarter and achieve your goals.
- Log rowing workouts with detailed metrics
- Calculate target splits for any distance/time
- AI-powered data scanning from monitors
- Performance charts and activity heatmap
- Year in Pixels training visualization
- Power profile analysis
- Race planner with segment splits
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ErgSpeed is the training log built for indoor rowers. Log every row in seconds, see exactly how you paced it, and watch your fitness grow week by week. SCAN THE MONITOR Take a photo of your Concept2 PM3, PM4, or PM5 results screen and ErgSpeed fills in the rest: distance, time, split, stroke rate, every split, every interval, and every rest. Long workout? Photograph each screen in any order. The scanner tells you when it has them all and asks for another photo if a split is missing. Your photos are saved with the session. LOG IT YOUR WAY Prefer to type? The rowing keypad formats times as you go, so 7124 becomes 7:12.4. Log single-distance, single-time, and Just Row pieces, or distance, time, and variable intervals. Split and watts are calculated for you, and ErgSpeed checks that your splits add up. Record the machine you used, whether it is a RowErg, a WaterRower, or one of your own. SEE HOW YOU REALLY ROWED Every session shows your average split front and center, a pace strip of every split and rest, and a table showing which splits were faster than average. Compare against every past row of the same workout, see your personal best, and jump to your most recent attempt with one tap. YOUR TRAINING AT A GLANCE Home shows this week's meters against your weekly goal, your latest row, and twelve weeks of training as a color grid. Your goal syncs across your devices with iCloud. HISTORY AND FILTERS Every row, grouped by month, with a mini pace strip on each one. Filter by workout type, distance, time piece, split range, stroke rate, machine, and date to find any session fast. CHARTS AND STREAKS Weekly meters, your best 2K over time, and your yearly totals. Keep your streak going week after week. YEAR IN PIXELS Your whole training year in one grid, with each day shaded based on how far you rowed. Share it as an image. POWER PROFILE Your best watts from 1 minute to 1 hour and from 500 meters to 6K, so you know where you are strong and where to focus. RACE PLANNER Pick a distance or time, set a target, and shape your pace: go out hard, settle in, then sprint. See the plan as a chart, save it, and row it live with a segment-by-segment race screen. CALCULATORS Calculate time, split, distance, or watts for any piece. Premium adds training paces, heart rate zones, calories, boat class conversion, and drive ratio. SHARE Turn a session, your Year in Pixels, your Power Profile, or a calculation into a clean image to share. PREMIUM ErgSpeed is free to use. Premium unlocks: • Scan the monitor • Splits and intervals on results • Charts, streaks, filters, and the 12-week activity grid • Power Profile • All past results for each workout • Race plans with more than two segments • Training pace, heart rate zone, calorie, boat class, and drive ratio calculators Choose a monthly, yearly, or one-time lifetime purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel your subscription in your App Store account settings. Scanning works with Concept2 PM3, PM4, and PM5 monitors and requires an internet connection. ErgSpeed is not affiliated with Concept2. Terms of Service: https://sports-stats.org/terms/ergspeed Privacy Policy: https://sports-stats.org/privacy/ergspeed
Screenshots
Verdict
The clearest difference is in-app purchases: Unit Converter at none against ErgSpeed Rowing Logbook's 3. Unit Converter also leads on device support (3 vs 1) and iOS requirement (11.0 vs 26.0). ErgSpeed Rowing Logbook's advantage is update cadence (every 9 days vs every 28 months). On price, review sentiment and ads 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. ErgSpeed Rowing Logbook sells 3 in-app purchases, starting at $5.99 per month. Unit Converter asks for nothing beyond the download.
Unit Converter ships an update every 28 months, ErgSpeed Rowing Logbook every 9 days. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.
| Parameter | Unit Converter | ErgSpeed Rowing Logbook |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 28 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 30 MB | 4 MB |
| Age rating | 4+ | +4 |
| Developer | Dipen Patel | Sports Stats Limited |
Customer experience
Unit Converter
ErgSpeed Rowing Logbook
In-app purchases
Unit Converter
No in-app purchases
ErgSpeed Rowing Logbook
- Monthly Subscription$5.991 Month
- Yearly Subscription$29.991 Year
- Lifetime Access$59.99
Questions
Is Unit Converter free?
Is ErgSpeed Rowing Logbook free?
Do Unit Converter or ErgSpeed Rowing Logbook have ads?
Which is updated more often, Unit Converter or ErgSpeed Rowing Logbook?
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