# PushUp Synth vs Bike Dynamics

The clearest difference is in-app purchases: PushUp Synth at none against Bike Dynamics's 2. Bike Dynamics's advantage is update cadence (every 3 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Bike Dynamics sells 2 one-off in-app purchases. PushUp Synth asks for nothing beyond the download.

PushUp Synth ships an update monthly, Bike Dynamics every 3 days. The most recent releases landed on October 3, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | PushUp Synth | Bike Dynamics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/bike-dynamics/id6812074998/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 141 MB | 24 MB |
| Requires iOS | **26.0** | 26.5 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Dissolve Media AB](https://appshunter.io/developer/1858051460) | [FLORENTIN TOBIAS ERB](https://appshunter.io/developer/1833913213) |

## What reviewers say

### PushUp Synth

[App page](https://appshunter.io/ios/app/pushup-synth/id6756027096)

**In-app purchases:** none


### Bike Dynamics

[App page](https://appshunter.io/ios/app/bike-dynamics/id6812074998)

This app transforms your Apple Watch into a mountain biking sensor, analyzing motion and GPS data to provide detailed insights into your rides. Track jumps, corners, and speed, then replay and compare your runs on a synchronized map and timeline. It also offers an AI coach to discuss your performance and technique.

**Highlights:** Ride analysis with map and timeline, Jump, corner, and control detection, Airtime, jump distance, and speed tracking, Repeated trail section recognition, Personal performance archive, AI coach for ride reflection, Strava export

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bike Dynamics Trial | Free | one-time |
| Bike Dynamics Lifetime | $5.99 | one-time |


## Frequently asked questions

### Is PushUp Synth free?

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

### Is Bike Dynamics free?

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

### Do PushUp Synth or Bike Dynamics have ads?

Neither PushUp Synth nor Bike Dynamics shows ads.

### Which is updated more often, PushUp Synth or Bike Dynamics?

PushUp Synth ships an update monthly, and Bike Dynamics every 3 days. Most recently, PushUp Synth was updated on October 3, 2026 and Bike Dynamics on October 8, 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.*