# FitFly(US) vs Spald

The clearest difference is update cadence: FitFly(US) at monthly against Spald's every 11 months. FitFly(US) also leads on iOS requirement (10.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FitFly(US) ships an update monthly, Spald every 11 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | FitFly(US) | Spald |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (86 ratings)](https://appshunter.io/ios/app/fitflyus/id1505971648/reviews)** | — |
| Number of ratings | **86** | — |
| Positive reviews | 13.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 11 months |
| Monetization | Free | — |
| Size | 45 MB | 4 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [琳 陈](https://appshunter.io/developer/1528936465) | [Arquivandus Lda](https://appshunter.io/developer/1497173009) |

## What reviewers say

### FitFly(US)

[App page](https://appshunter.io/ios/app/fitflyus/id1505971648)

Accurately record various fitness activities like running, cycling, and walking. Get multi-dimensional body state evaluations and professional physiological indexes to make your fitness journey more scientific and effective. Enjoy playback of your fitness records and synchronize data with Apple Health.

**Highlights:** Accurate fitness activity recording, Multi-dimensional body state evaluation, Professional physiological indexes, Exercise track record and playback, Apple Health data synchronization

**Features:** macOS Compatibility

**In-app purchases:** none


### Spald

[App page](https://appshunter.io/ios/app/spald/id1583396100)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is FitFly(US) free?

FitFly(US) is free to download, with no in-app purchases.

### Is Spald free?

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

### Do FitFly(US) or Spald have ads?

Neither FitFly(US) nor Spald shows ads.

### Which is updated more often, FitFly(US) or Spald?

FitFly(US) ships an update monthly, and Spald every 11 months. Most recently, FitFly(US) was updated on October 24, 2026 and Spald on October 16, 2026.

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