GPS Twin Odometers vs Competitor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GPS Twin Odometers
This app provides dual odometers, clocks, and stopwatches for historic, classic, and vintage road rallies. It uses device GPS for accurate distance measurement and offers multiple modes for timing and tracking stages. Log your data with geographic coordinates for detailed record-keeping.
- Dual odometers with two decimal place accuracy
- Integrated stopwatch and clock functions
- GPS-based distance measurement
- Three operational modes: Regularity, Jogularity, Lap
- Distance logging with geographic coordinates
- Option to subtract distance when off-course
- Choice between miles or kilometers
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Historic, Classic, or Vintage road rallies may permit digital dual odometers, clocks, and stopwatches. This app combines all three using timers and GPS devices built into Apple mobile devices. GPS inputs are used strictly for distance measures along the rally route. Also, the displayed accuracy of two decimal places conforms to typical historic, classic, and vintage road rally restrictions. However, it is possible to interpolate distance to three decimal places. There are tick marks to indicate the second decimal place number centered on the display as well as increments of +0.0025, +0.0050, and +0.0075. When touched, the Control button will pause the two odometers for 4 seconds to allow you time to estimate distance to thousandths. Similarly, time measurements are limited to whole seconds or cents. Time, distance, and mode (discussed below) may be chosen at the start of a new rally by touching the Set button to access app Settings. A set of buttons allows you to chose the active odometer. The leftmost button activates the lower "interval distance" odometer; the rightmost button activates the upper "total distance" odometer; the center button activates both odometers. From time to time you may measure time and distance for a stage or a checkpoint and record data by touching the Control button. The time and distance will be stored in a log along with geographic coordinates. Distance options include subtraction of distance when you travel off course. Direction buttons switch between forward (+), reverse (–), and park (0). Also, you may chose between miles or kilometers. There are three modes of operation selectable in the app Settings: Regularity mode, Jogularity mode, and Lap mode. In Regularity mode, the stopwatch will be reset to zero each time the Control button is pressed. In Jogularity mode the time split will be recorded but the stopwatch will continue recording. In Lap mode, the tabular display will reset the stopwatch to zero when the control button relabeled Lap Reset is touched and each split time will be identified as a Lap in the table. Also, in Lap mode, the options to zero either of the odometers are removed, however the lower odometer can be set to zero at the start of each lap by touching the Lap Reset button. Note: Use of the GPS Twin Odometers during any particular rally will be subject to the rules and instructions governing the rally and may define your category or class among participants. Please consult the Rally Master for approval of the use of this app. Disclaimer: Continued use of GPS running in the background can dramatically decrease battery life.
Competitor
This app automates timing for road rally events, eliminating the need for physical checkpoint crews. It automatically sends timing and scoring data to organizers.
- Automated timing for road rallies
- No physical checkpoint crews needed
- Automatic data transmission to organizers
- Time-speed-distance event support
- GPS-based checkpoint timing
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Automate the timing of competitors in time-speed-distance road rally events with no requirement for the traditional checkpoint crews to be physically present at the checkpoint locations. Timing and scoring data is automatically sent to the organizers.
Screenshots
Verdict
The clearest difference is price: Competitor at Free against GPS Twin Odometers's $12.99. Competitor also leads on rating (3.2 vs 3.0) and update cadence (every 3 months vs every 7 months). GPS Twin Odometers's advantage is iOS requirement (13.6 vs 15.6). On review sentiment, ads, 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
Competitor is free to download; GPS Twin Odometers costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Competitor holds the better App Store score, 3.2 against 3.0. That said, the two scores are not equally well evidenced: Competitor has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 50% of GPS Twin Odometers's written reviews are positive against 43% of Competitor's, so the app with the better star average is not the one people write more warmly about.
GPS Twin Odometers ships an update every 7 months, Competitor every 3 months. The most recent releases landed on September 19, 2026 and October 24, 2026 respectively.
| Parameter | GPS Twin Odometers | Competitor |
|---|---|---|
| Price | $12.99 | Free — better |
| Rating | 3.0 (2 ratings) | 3.2 (10 ratings) — better |
| Positive reviews | 50.0% of reviews — better | 42.9% of reviews |
| Number of ratings | 2 | 10 — better |
| Update frequency | Every 7 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.6 — better | 15.6 |
| Further details — not scored | ||
| Size | 1 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | MSYapps | David Bireta |
Customer experience
GPS Twin Odometers
Competitor
In-app purchases
GPS Twin Odometers
No in-app purchases
Competitor
No in-app purchases
Questions
Is GPS Twin Odometers free?
Is Competitor free?
Which has better reviews, GPS Twin Odometers or Competitor?
Do GPS Twin Odometers or Competitor have ads?
Which is updated more often, GPS Twin Odometers or Competitor?
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