# SAT Practice Test & PSAT Prep vs PrepLab

The clearest difference is update cadence: PrepLab at every 2 weeks against SAT Practice Test & PSAT Prep's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SAT Practice Test & PSAT Prep sells 1 one-off in-app purchase and PrepLab sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

SAT Practice Test & PSAT Prep ships an update every 4 months, PrepLab every 2 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SAT Practice Test & PSAT Prep | PrepLab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/preplab-o-level-exam-practice/id6788296358/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 22 MB | 54 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [iAPPSSTUDIO](https://appshunter.io/developer/1830642259) | [NTH LABS LLP](https://appshunter.io/developer/1724545166) |

## What reviewers say

### SAT Practice Test & PSAT Prep

[App page](https://appshunter.io/ios/app/sat-practice-test-and-psat-prep/id6764739248)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get Lifetime Access | $7.99 | one-time |


### PrepLab

[App page](https://appshunter.io/ios/app/preplab-o-level-exam-practice/id6788296358)

This app provides bite-sized, topical practice for Singaporean students preparing for O-Level exams. It intelligently tracks incorrect answers to personalize future study sessions, focusing on weak areas across various subjects. Parents can monitor their child's progress and identify areas needing attention.

**Highlights:** Bite-sized, topical practice sets, Personalized recommendations based on mistakes, Progress tracking by subject and topic, In-app note-taking, Daily streak rewards, Parental progress dashboard

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $6.99 | per month |
| Premium Yearly | $59.99 | per year |


## Frequently asked questions

### Is SAT Practice Test & PSAT Prep free?

SAT Practice Test & PSAT Prep is free to download, with in-app purchases available.

### Is PrepLab free?

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

### Do SAT Practice Test & PSAT Prep or PrepLab have ads?

Neither SAT Practice Test & PSAT Prep nor PrepLab shows ads.

### Which is updated more often, SAT Practice Test & PSAT Prep or PrepLab?

SAT Practice Test & PSAT Prep ships an update every 4 months, and PrepLab every 2 weeks. Most recently, SAT Practice Test & PSAT Prep was updated on October 28, 2026 and PrepLab on October 31, 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.*