TinyWalk: Health Test Data
Test data for HealthKit apps
About
This utility generates synthetic HealthKit test data for developers and QA testers. It simulates step counts, walking distance, and workouts to help test app functionality without manual data entry or simulator limitations. The app offers various dataset options and control over data provenance and timing.
What's New in TinyWalk
1.11.0
November 4, 2026
• Fixed: long Pro background runs (such as 10,000 steps) were repeatedly stopped by the system with a "Task failed" alert. They now keep writing to the end, even with the screen locked. • Added Swedish and Danish.
MoreSubscriptions & In-App Purchases
$2.99
Unlock Pro Datasets
Unlocks 2,000-10,000 step datasets, no daily limit.
Developer apps
FAQ
What is TinyWalk used for?
TinyWalk is a developer utility designed to generate synthetic HealthKit test data. This helps developers and QA testers efficiently populate HealthKit with realistic data for building and testing applications that read step counts, walking distance, or workouts.
Does TinyWalk have ads?
Yes, TinyWalk contains advertisements. As a free app with optional in-app purchases, ads are displayed to support its development and maintenance.
What types of HealthKit data can TinyWalk generate?
TinyWalk can generate HKQuantityTypeIdentifierStepCount samples, HKQuantityTypeIdentifierDistanceWalkingRunning, and HKWorkout (.walking) sessions. It can create single samples per write or split steps into per-minute data.
Can I test how my app handles historical HealthKit data with TinyWalk?
Yes, TinyWalk offers back-dated generation, allowing you to spread datasets minute-by-minute across a past time range. This is crucial for testing how your app aggregates historical data without waiting in real time.
What are the free features of TinyWalk?
The 100-step and 1,000-step presets are available for free. Users can also access core data generation features without needing an account, as the generation runs entirely on the device.
How does TinyWalk handle data accuracy and realism?
TinyWalk generates samples with realistic variance, including ±12% per-minute variation and configurable cadence (walk/jog/run). This ensures your charts and averages are tested against non-uniform input, not just flat series.
What is the Pro Lifetime Unlock in TinyWalk?
The Pro Lifetime Unlock is a one-time purchase that permanently enables advanced features. These include larger step presets (2,000-10,000), custom step and duration targets, background continuation, and removes daily generation limits.
Is TinyWalk available on devices other than iPhone?
Based on the provided data, TinyWalk is currently supported on iPhone. There is no information indicating support for other Apple devices like iPad or Apple Watch.
