VDOT Running Calculator vs UnSwept
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VDOT Running Calculator
This app helps runners and coaches calculate training paces, equate race performances, and adjust for environmental factors. Based on decades of scientific research, it provides a VDOT score to measure running ability and compare performances across different distances.
- Calculate time, distance, and race paces
- Determine current training paces
- Equate race performances across distances
- Adjust paces for heat and altitude
- Measure running ability with VDOT score
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The official VDOT Running Calculator, designed by Dr. Jack Daniels - named World's Best Running Coach by Runner's World Magazine - and the team at VDOT O2. Thanks to over 50 years of scientific research conducted by legendary coach Dr. Jack Daniels, runners and coaches can quickly determine appropriate training paces, equate race performances and adjust for heat and altitude. Features: • Calculate time, distance and race paces • Calculate your current training paces • Calculate and compare the equivalent performances of a race result at other distances • Calculate the effect of temperature or altitude on training and race paces What's Your VDOT? VDOT is a measure of your current running ability. It assigns a score to all running performances, let's you determine your current training paces, and equates a race time in one distance to another. For instance, you can compare your VDOT score from a recent 5k result to a friend's score who just ran a half marathon. Who won? What VDOT Level Have You Reached? Input a race result or estimated performance and learn what score it reaches on the VDOT scale. Enter all your past performances to see which race result scores the highest. There are 10 levels starting at Beginner - White (Female: 34.3, Male: 36.8) all the way up to Professional - Gold (Female: 71, Male: 80).
UnSwept
Track your progress and stay ahead of race cutoffs during major marathons. This app provides countdowns to checkpoints, allowing you to mark segments as complete and manage your race strategy without needing an internet connection or sharing data.
- Race cutoff information
- Segment countdowns
- Mark segments complete
- Restore segments
- Customizable settings
- Supports major marathons
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A simple standalone iPhone or Apple Watch app for World Major Marathon runners to let you know how much time you have before the next cutoff checkpoint (where you will be swept up by the bus and unable to finish the race). Features: - Race Cutoff information. - Segment countdowns. - Swipe to mark segments complete as you run. - Swipe to restore segments marked complete in error. - Settings for units, race, and time. - Now supports Tokyo and Sydney 2025. This app does not require any logins, data sharing, internet connectivity, or permissions and is built to be extremely easy on your watch battery.
Screenshots
Verdict
The clearest difference is in-app purchases: UnSwept at none against VDOT Running Calculator's 2. UnSwept also leads on update cadence (monthly vs every 4 months). VDOT Running Calculator's advantage is ratings volume (1.6K vs 2). On price, rating, ads 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. VDOT Running Calculator sells 1 one-off in-app purchase. UnSwept asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for VDOT Running Calculator against 5.0 for UnSwept. That said, the two scores are not equally well evidenced: VDOT Running Calculator has 1.6K ratings behind it against 2, so its average is the more settled of the two.
VDOT Running Calculator ships an update every 4 months, UnSwept monthly. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.
| Parameter | VDOT Running Calculator | UnSwept |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (1.6K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 73.8% of reviews | — |
| Number of ratings | 1.6K — better | 2 |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 38 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | The Run SMART Project, LLC | Patrick Culligan |
Customer experience
VDOT Running Calculator
UnSwept
Bugs and requests
VDOT Running Calculator
Reported bugs
3 issues- Crashes when upgrading to premium
- Can't scroll beyond 200/400m results
- Custom distance doesn't support metric
Requested features
4 requests- Expand time field to support ultras
- Add 6k and 8k distances
- Allow inputting VDOT score directly
- Allow typing in times instead of scrolling
UnSwept
Not enough reviews yet to summarise bugs or requests.
In-app purchases
VDOT Running Calculator
- VDOT Calculator Premium2 variants$8.99
UnSwept
No in-app purchases
Questions
Is VDOT Running Calculator free?
Is UnSwept free?
Which has better reviews, VDOT Running Calculator or UnSwept?
Do VDOT Running Calculator or UnSwept have ads?
Which is updated more often, VDOT Running Calculator or UnSwept?
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