# Chronofit vs Spark

The clearest difference is in-app purchases: Spark at none against Chronofit's 5. Spark also leads on ads (none vs shown) and update cadence (every 2 days vs monthly). Chronofit's advantage is iOS requirement (15.1 vs 17.0). On price and device support there is nothing between them.

Both are free to download. Chronofit sells 5 one-off in-app purchases. Spark asks for nothing beyond the download.

Chronofit ships an update monthly, Spark every 2 days. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Chronofit | Spark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chronofit-workout-planner/id926592300/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 75.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 99 MB | 65 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Cao Tri DO](https://appshunter.io/developer/874529972) | [Rushi Raval](https://appshunter.io/developer/1462165401) |

## What reviewers say

### Chronofit

[App page](https://appshunter.io/ios/app/chronofit-workout-planner/id926592300)

This app helps you create custom workouts, track your progress, and monitor your nutrition. It offers timers, workout history, body measurement tracking, and the ability to discover workouts from others. Coaches can also use it to share programs and monetize content.

**Highlights:** Create custom workouts, Built-in timers for sessions, Track workout progress, Log nutrition and calories, Discover community workouts, Remote coaching features

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 credits | $7.99 | one-time |
| 10 credits | $14.99 | one-time |
| 30 credits | $49.90 | one-time |
| 50 credits | $79.90 | one-time |
| 100 credits | $149.99 | one-time |


### Spark

[App page](https://appshunter.io/ios/app/spark-cognitive-training-app/id6801150000)

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

**In-app purchases:** none


## Frequently asked questions

### Is Chronofit free?

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

### Is Spark free?

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

### Do Chronofit or Spark have ads?

Chronofit shows ads; Spark does not.

### Which is updated more often, Chronofit or Spark?

Chronofit ships an update monthly, and Spark every 2 days. Most recently, Chronofit was updated on October 15, 2026 and Spark 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.*