Pace Calculator by PL vs HeartFan
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Pace Calculator by PL
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From the team behind the award winning Paddle Logger. An easy to use tool for paddlers (by paddlers) to assist with training plans and race targets. Whether you are on a SUP, Kayak, OC, Canoe, Prone Paddleboard or something else. Understanding your speed and how changes in average pace will affect your overall times is very valuable. Simply plug in your desired time and you will get an average pace, and equivalent target times for 2, 5 & 10 km or mile distances. Wondering how different paces and speeds might impact your time - take a look at the new Reference Tables. PL Pace Calc is a Free tool from the team at Paddle Logger. Join tens of thousands of athletes in the Paddle Logger community all over the world!
HeartFan
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Control your homekit devices during a workout. HeartFan allows you to control your fans and lights within your house based on your heart rate. This can be especially useful for indoor sports where you want your fan to go up when you start sweating. Also controlling the light when reaching your limits gives you an immersive extra motivation. Simply add the accessories, press start and go! The following services and data is accessed by the app: HealthKit: ⢠Read Resting Heart rate (Optional, by default 60, used as minimum default control value 0%) ⢠Read Date of Birth (Optional, by default 30, calculates the maximum heart rate based on your age, used as maximum control value 100%) ⢠Read Heart rate (To read heart rate during the workout and control your HomeKit accessories between your min and max control value) ⢠Read/Write Workout (To start a workout) HomeKit: ⢠Control fans that have dynamic speed enabled. ⢠Control lights that have brightness enabled.
Screenshots
Verdict
The clearest difference is update cadence: Pace Calculator by PL at every 10 months against HeartFan's every 21 months. HeartFan's advantage is iOS requirement (13.0 vs 15.2). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Pace Calculator by PL ships an update every 10 months, HeartFan every 21 months. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.
| Parameter | Pace Calculator by PL | HeartFan |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 months ā better | Every 21 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Requires iOS | 15.2 | 13.0 ā better |
| Further details ā not scored | ||
| Size | 1 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Paddle Logger Ltd. | ritterfeld.com |
In-app purchases
Pace Calculator by PL
No in-app purchases
HeartFan
No in-app purchases
Questions
Is Pace Calculator by PL free?
Is HeartFan free?
Do Pace Calculator by PL or HeartFan have ads?
Which is updated more often, Pace Calculator by PL or HeartFan?
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