# FLY Encoders vs Runtools Calc

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.

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.

## The numbers

| Metric | FLY Encoders | Runtools Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/runtools-calc/id6758685205/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Free |
| Size | 11 MB | 1 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sam Becker](https://appshunter.io/developer/1804184241) | [Ladarius tellis](https://appshunter.io/developer/1871800577) |

## What reviewers say

### FLY Encoders

[App page](https://appshunter.io/ios/app/fly-encoders/id6743722007)

**Features:** macOS Compatibility

**In-app purchases:** none


### Runtools Calc

[App page](https://appshunter.io/ios/app/runtools-calc/id6758685205)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FLY Encoders free?

FLY Encoders is free to download, with no in-app purchases.

### Is Runtools Calc free?

Runtools Calc is free to download, with no in-app purchases.

### Do FLY Encoders or Runtools Calc have ads?

Neither FLY Encoders nor Runtools Calc shows ads.

### Which is updated more often, FLY Encoders or Runtools Calc?

FLY Encoders ships an update every 3 weeks, and Runtools Calc fortnightly. Most recently, FLY Encoders was updated on October 30, 2026 and Runtools Calc on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*