# Instinct vs Caffeine Tracker

The clearest difference is in-app purchases: Instinct at none against Caffeine Tracker's 2. On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Caffeine Tracker sells 2 in-app purchases, starting at $1.99 per 7 days. Instinct asks for nothing beyond the download.

Instinct ships an update every 5 days, Caffeine Tracker every 2 days. The most recent releases landed on October 7, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Instinct | Caffeine Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/caffeine-tracker-brewscan/id6748345657/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | **Free** | Freemium |
| Size | 2 MB | 13 MB |
| Requires iOS | 18.2 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jasper Cheyney](https://appshunter.io/developer/1814666512) | [IPAPPS Ltd.](https://appshunter.io/developer/1822037143) |

## What reviewers say

### Instinct

[App page](https://appshunter.io/ios/app/instinct-reaction-time-tests/id6745971089)

Enhance your reaction time, reflexes, and cognitive speed with engaging, fast-paced games. Track your progress with detailed graphs, compete with friends on global leaderboards, and unlock achievements. Designed for quick daily mental agility training.

**Highlights:** Reaction Speed game, Turbo Tap challenge, Aim Training mode, Unlockable awards, Game Center leaderboards, Progress tracking graphs

**Features:** macOS Compatibility

**In-app purchases:** none


### Caffeine Tracker

[App page](https://appshunter.io/ios/app/caffeine-tracker-brewscan/id6748345657)

Monitor your daily caffeine intake with this tracker. Log beverages, set limits, and receive personalized AI insights to optimize energy and sleep. Features include progress tracking, sleep notifications, and detailed history.

**Highlights:** Log beverages (coffee, tea, energy drinks), Set daily caffeine limits and track progress, Personalized caffeine cutoff time notifications, Detailed history and entry deletion, AI insights and statistics, Visual data charts (weekly/monthly)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $1.99 | per 7 days |
| Annual subscription | $29.99 | per year |


## Frequently asked questions

### Is Instinct free?

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

### Is Caffeine Tracker free?

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

### Do Instinct or Caffeine Tracker have ads?

Neither Instinct nor Caffeine Tracker shows ads.

### Which is updated more often, Instinct or Caffeine Tracker?

Instinct ships an update every 5 days, and Caffeine Tracker every 2 days. Most recently, Instinct was updated on October 7, 2026 and Caffeine Tracker on September 21, 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.*