FLY Encoders vs Runtools Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FLY Encoders
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Connects to FLY Encoders bluetooth device that uses waist belt, string, and encoder system to measure movement timing splits.
Runtools Calc
This app simplifies running calculations for athletes and coaches. It accurately computes splits, pace, and performance metrics in a clear format, offering VO₂ max calculations and preset race distances. Train smarter with precise data without unnecessary complexity.
- Calculate splits for any distance and total time
- View pace in multiple units (min/mi, min/km, mph, km/h)
- Accurate pace formatting
- Preset distances for common races
- VO₂ calculator with fitness insight
- Clean, readable layout for quick reference
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RunTools Calc is a free training calculator built for runners and coaches who care about accuracy. Most running apps overcomplicate simple math. RunTools Calc focuses on what actually matters: splits, pace, and performance clarity—presented in a clean, readable format. Features • Calculate splits for any distance and total time • View pace in min/mi, min/km, mph, and km/h • Simple vertical split layout designed for quick reference • Accurate pace formatting (no broken times like 3:60) • Preset distances including Mile, 8K, 10 Mile, 15K, Half Marathon, and Marathon • VO₂ calculator with fitness-level insight • Built for athletes, coaches, and serious training Whether you’re planning workouts, checking race pace, or coaching athletes, RunTools Calc gives you the numbers you need—without noise. Train smarter. Run with precision.
Screenshots
Verdict
The clearest difference is iOS requirement: Runtools Calc at 15.6 against FLY Encoders's 17.6. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
FLY Encoders ships an update every 3 weeks, Runtools Calc fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | FLY Encoders | Runtools Calc |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (5 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.6 — better |
| Further details — not scored | ||
| Size | 11 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Sam Becker | Ladarius tellis |
In-app purchases
FLY Encoders
No in-app purchases
Runtools Calc
No in-app purchases
Questions
Is FLY Encoders free?
Is Runtools Calc free?
Do FLY Encoders or Runtools Calc have ads?
Which is updated more often, FLY Encoders or Runtools Calc?
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