Psych Boost vs Colour Adjuster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Psych Boost
This app aids A-Level and GCSE psychology students in revising core content for the AQA specification. Developed by a psychology teacher and YouTube channel creator, it offers structured learning and revision support.
- A-Level Psychology revision
- GCSE Psychology revision
- AQA specification content
- Content by psychology teacher
- Supports learning and revision
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Supercharge your psychology revision with Psych Boost, the official companion app to the Psych Boost YouTube channel. Built explicitly for UK GCSE and A-Level Psychology students, this app transforms passive watching into active recall to lock in your top exam grades. Whether you are mastering core theories or refining your AO1 and AO3 exam application, Psych Boost syncs seamlessly with the lessons you already trust to make studying intuitive, structured and highly effective. WHY STUDY WITH PSYCH BOOST? • EXPERT FLASHCARDS: Master the specification with hundreds of beautifully formatted flashcards synchronised directly with Psych Boost channel lessons. • MULTIPLE-CHOICE QUIZZES: Test your knowledge under pressure across all core exam topics. • LINKED YOUTUBE LESSONS: Stuck on a tough quiz question? Tap to instantly watch the exact matching video lesson to fix your understanding. • KEY TERM TESTER: Eliminate vocabulary slip-ups and lock down precise, exam-standard definitions to score easy marks. • VISUAL GLOSSARY: A fast, comprehensive dictionary of psychological terms right at your fingertips. • PROGRESS DASHBOARD: Stay accountable with automated daily study streaks, interactive activity calendars and live exam countdown timers. TAILORED TO YOUR EXAM BOARD Get started completely free with full access to Paper 1. Upgrade to our premium tier to unlock full access to Paper 2 and fully customisable Paper 3 optional modules—allowing you to configure your exact topics like Schizophrenia, Addiction, Gender and more. 100% PRIVATE & SIGN-UP FREE We value your focus. Psych Boost requires no accounts, no sign-ups and no internet tracking. All of your study logs, exam dates and progress markers are stored 100% locally on your device. Just download and start studying instantly. Streamline your exam preparation and achieve your potential. Download Psych Boost today! Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://psychboost.com/pages/contact
Colour Adjuster
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Closed-signup app for use in a lab study into colour vision at the University of Sussex.
Screenshots
Verdict
The clearest difference is in-app purchases: Colour Adjuster at none against Psych Boost's 2. Psych Boost's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 2 months). On price, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Psych Boost sells 2 in-app purchases, starting at $3.99 per year. Colour Adjuster asks for nothing beyond the download.
Psych Boost ships an update every 2 weeks, Colour Adjuster every 2 months. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.
| Parameter | Psych Boost | Colour Adjuster |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 71.1% of reviews | — |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 60 MB | 34 MB |
| Age rating | 9+ | 4+ |
| Developer | Psych Boost LTD | James Alvarez |
Bugs and requests
Psych Boost
Reported bugs
15 issues- App does not work on iPad
- Cannot get answers to questions on iPad quizzes
- Cannot scroll on iPad/Chromebook
- Bug with selecting quiz topics for GCSE
- App logs off after completing an activity/quiz
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- App closes spontaneously when clicking on a quiz
- App crashes after trying to go onto another topic
- App crashes when exiting quiz section and selecting another class
- Cannot upgrade the app (goes grey)
- Black screen with blue cross when trying to buy membership
- Money taken for pro version but not granted
- App is a scam, money taken but pro version not unlocked
- Flashcards have too much writing and cannot scroll
- Incorrect information on Sperlings 1960 study
- Typos and spelling mistakes in flashcards
Requested features
12 requests- Option for other exam boards
- More bold updates
- Normal accounts for cross-device access
- Scroll button for flashcards/quizzes on all devices
- More questions to reduce repetition
Show 7 moreShow fewer
- Ability to revise multiple topics at once
- Option to rate flashcards
- Log of revised topics with scores
- Revise incorrect flashcards
- Exam countdown timer
- Testing knowledge and evaluation features
- Save progress on flashcards after leaving app
Colour Adjuster
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Psych Boost
- Psych Boost Pro$3.991 Year
- Psych Boost Pro$3.99
Colour Adjuster
No in-app purchases
