# ExperimentA vs GapTracker

The clearest difference is update cadence: GapTracker at every 6 days against ExperimentA's every 3 weeks. GapTracker also leads on device support (4 vs 2). ExperimentA's advantage is iOS requirement (15.1 vs 18.0). On price, ads and in-app purchases there is nothing between them.

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

ExperimentA ships an update every 3 weeks, GapTracker every 6 days. The most recent releases landed on September 25, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | ExperimentA | GapTracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Size | 42 MB | 14 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [GUSTAVO A LUJAN MORENO](https://appshunter.io/developer/1887093181) | [Ehab Marrid](https://appshunter.io/developer/6782966588) |

## What reviewers say

### ExperimentA

[App page](https://appshunter.io/ios/app/experimenta/id6760971130)

**Features:** macOS Compatibility

**In-app purchases:** none


### GapTracker

[App page](https://appshunter.io/ios/app/gaptracker-study-planner/id6782966586)

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

**In-app purchases:** none


## Frequently asked questions

### Is ExperimentA free?

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

### Is GapTracker free?

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

### Do ExperimentA or GapTracker have ads?

Neither ExperimentA nor GapTracker shows ads.

### Which is updated more often, ExperimentA or GapTracker?

ExperimentA ships an update every 3 weeks, and GapTracker every 6 days. Most recently, ExperimentA was updated on September 25, 2026 and GapTracker on October 6, 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.*