# Psych Lab 101 vs Milestone Tracker

The clearest difference is review sentiment: Psych Lab 101 at 50% against Milestone Tracker's 0%. Psych Lab 101 also leads on iOS requirement (12.0 vs 15.1). Milestone Tracker's advantage is update cadence (every 3 weeks vs every 13 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Psych Lab 101 ships an update every 13 months, Milestone Tracker every 3 weeks. The most recent releases landed on September 19, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Psych Lab 101 | Milestone Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/psych-lab-101/id1014084546/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 35 MB | 40 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Neurobehavioral Systems, Inc.](https://appshunter.io/developer/705361617) | [Hong Kong Metropolitan University](https://appshunter.io/developer/432474107) |

## What reviewers say

### Psych Lab 101

[App page](https://appshunter.io/ios/app/psych-lab-101/id1014084546)

Explore 35 psychology experiments and 11 visual illusions. Compare your results to classic findings and adjust parameters to see how perception changes. Includes background information and options for class data analysis.

**Highlights:** 35 psychology experiments, 11 adjustable visual illusions, Background information and references, Multiple experiment versions, Class data analysis upload, Interactive parameter adjustment

**Features:** macOS Compatibility

**In-app purchases:** none


### Milestone Tracker

[App page](https://appshunter.io/ios/app/milestone-tracker/id1435872763)

Monitor your academic progress by tracking module and task completion. Compare your performance with classmates and earn B&A coins for completing activities, redeemable for rewards.

**Highlights:** Track module and task completion, Compare performance with other students, Earn B&A coins for activities, Redeem coins for rewards, View study progress

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Psych Lab 101 free?

Psych Lab 101 is free to download, with no in-app purchases.

### Is Milestone Tracker free?

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

### Do Psych Lab 101 or Milestone Tracker have ads?

Neither Psych Lab 101 nor Milestone Tracker shows ads.

### Which is updated more often, Psych Lab 101 or Milestone Tracker?

Psych Lab 101 ships an update every 13 months, and Milestone Tracker every 3 weeks. Most recently, Psych Lab 101 was updated on September 19, 2026 and Milestone Tracker on October 1, 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.*