Dyslexia Reader vs Stim Check
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dyslexia Reader
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Dyslexia Reader is the ultimate reading tool for people with reading difficulties. The reader screen is fully customisable: - Change fonts - Change colors - Change the font size - Highlight text one word at a time - Text to speech - Automatic reading - Make all characters uppercase - Letter spacing - Line spacing
Stim Check
Track your caffeine intake and visualize how it affects your system over time. This tool helps you understand when caffeine will wear off, allowing for better management of sleep, performance, and recovery.
- Log caffeine intake from various sources
- Visualize caffeine levels over time
- Estimate caffeine half-life
- Determine 'clear by' time for sleep safety
- Simple and fast user interface
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You’re probably still caffeinated. PreFix: Stim Check helps you track how much caffeine is still active in your system—and when you’ll actually come down. Most people guess when caffeine wears off. This tool shows you. Log your coffee, pre-workout, or energy drinks and visualize your caffeine levels over time based on your body weight and caffeine half-life. See exactly when you drop below a sleep-safe threshold so you can better manage timing, performance, and recovery. Features: Log caffeine intake (coffee, pre-workout, energy drinks) Visualize your caffeine curve throughout the day See how much caffeine is still active in your system Get a “clear by” time for when levels drop Simple, fast, and easy to use Built for lifters, athletes, and anyone trying to better understand their caffeine habits. Free. No ads. No signup. This app provides estimates based on average caffeine metabolism and is not medical advice.
Screenshots
Verdict
The clearest difference is in-app purchases: Stim Check at none against Dyslexia Reader's 1. Stim Check also leads on update cadence (every 11 days vs every 6 weeks). On price, ads, 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. Dyslexia Reader sells 1 one-off in-app purchase. Stim Check asks for nothing beyond the download.
Dyslexia Reader ships an update every 6 weeks, Stim Check every 11 days. The most recent releases landed on July 18, 2026 and June 26, 2026 respectively.
| Parameter | Dyslexia Reader | Stim Check |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (5 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 6 weeks | Every 11 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 2 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Applorium Ltd | Edward Nepomuceno |
In-app purchases
Dyslexia Reader
- Lifetime upgrade$3.99
Stim Check
No in-app purchases




