# Koi Shape vs FitFlow

The clearest difference is in-app purchases: Koi Shape at none against FitFlow's 3. Koi Shape also leads on update cadence (monthly vs every 3 months) and device support (3 vs 1). FitFlow's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. FitFlow sells 3 in-app purchases, starting at $1.49 per month. Koi Shape asks for nothing beyond the download.

Koi Shape ships an update monthly, FitFlow every 3 months. The most recent releases landed on July 27, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Koi Shape | FitFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/fitflow-voice-workout-timer/id6748588247/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | — | Freemium |
| Size | 26 MB | 2 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [QUY DIEN LE](https://appshunter.io/developer/1745588028) | [Avi Shany](https://appshunter.io/developer/1768441278) |

## What reviewers say

### Koi Shape

[App page](https://appshunter.io/ios/app/koi-shape/id6745516636)

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

**In-app purchases:** none


### FitFlow

[App page](https://appshunter.io/ios/app/fitflow-voice-workout-timer/id6748588247)

This app provides hands-free, voice-guided workout timing for cardio and strength training. Focus on your form with clear audio cues, countdowns, and smooth transitions, keeping your phone out of your hand. Customize your workout structure and audio settings to match your training style.

**Highlights:** Voice-guided workout flow, Hands-free operation, Cardio and strength support, Customizable audio and timing, Quick start feature, Live Activities support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FitFlow Pro Monthly | $1.49 | per month |
| FitFlow Pro Yearly | $12.99 | per year |
| FitFlow Pro Lifetime | $34.99 | one-time |


## Frequently asked questions

### Is Koi Shape free?

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

### Is FitFlow free?

FitFlow is free to download, with in-app purchases available.

### Do Koi Shape or FitFlow have ads?

Koi Shape shows ads; FitFlow does not.

### Which is updated more often, Koi Shape or FitFlow?

Koi Shape ships an update monthly, and FitFlow every 3 months. Most recently, Koi Shape was updated on July 27, 2026 and FitFlow on September 22, 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.*