# Caffeine App vs spf.today

The clearest difference is update cadence: spf.today at every 5 days against Caffeine App's monthly. spf.today also leads on review sentiment (89% vs 74%). Caffeine App's advantage is ratings volume (340 vs 35) and device support (3 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Caffeine App sells 1 one-off in-app purchase and spf.today sells 5 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Caffeine App against 4.6 for spf.today. That said, the two scores are not equally well evidenced: Caffeine App has 340 ratings behind it against 35, so its average is the more settled of the two. Written reviews are what separate them: 74% of Caffeine App's written reviews are positive against 89% of spf.today's.

Caffeine App ships an update monthly, spf.today every 5 days. The most recent releases landed on August 28, 2026 and July 21, 2026 respectively.

## The numbers

| Metric | Caffeine App | spf.today |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (340 ratings)](https://appshunter.io/ios/app/caffeine-app-daily-tracker/id1045959983/reviews)** | [4.6 (35 ratings)](https://appshunter.io/ios/app/spftoday-sunscreen-tracker/id6670567397/reviews) |
| Number of ratings | **340** | 35 |
| Positive reviews | 73.7% of reviews | **88.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 17 MB | 69 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, Apple Watch, Vision Pro** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Oleg Mueller](https://appshunter.io/developer/367875607) | [Destro Labs LLC](https://appshunter.io/developer/939914528) |

## What reviewers say

### Caffeine App

[App page](https://appshunter.io/ios/app/caffeine-app-daily-tracker/id1045959983)

Track your caffeine intake from various beverages and monitor your hydration levels. Visualize your caffeine curve over 24 hours and receive notifications for your optimal sleep time. Integrates with Apple Health and Apple Watch for seamless logging and data syncing.

**Highlights:** Log caffeine from coffee, tea, and energy drinks, Visualize 24-hour caffeine curve, Calculate optimal sleep time, Track daily water intake, Apple Watch logging and complications, Apple Health integration, iCloud sync

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro | $4.99 | one-time |

**What reviewers like**

- 👍 Easy to use and intuitive interface
- 🎯 Accurate caffeine tracking and decay calculations
- ⏰ Helpful sleep readiness predictions
- 🏥 Apple Health integration for long-term tracking
- ⌚ Apple Watch support with quick logging

**What reviewers complain about**

- ⚠️ Recent performance degradation from new features
- 📊 Graphs become too small with multiple charts enabled
- ⏳ Long graphics update delays affecting responsiveness
- 🐛 Sleep ready time shows current time instead of prediction
- 🌍 Limited beverage library for non-German markets

**Reported bugs**

- Sleep ready time displays current time instead of predicted sleep time
- Cannot rename custom amounts until after adding them
- Newly added custom amounts appear at bottom of list
- Health app data from third-party apps not syncing
- All presets missing in some versions

**Requested features**

- Toggle option to disable bar chart visualization
- Taller graph display area with scrolling capability
- Personalization based on body weight and metabolism
- Ounce-based measurement options for drinks
- Multi-day and historical trend analysis


### spf.today

[App page](https://appshunter.io/ios/app/spftoday-sunscreen-tracker/id6670567397)

Effortlessly track sunscreen application and receive smart reapply reminders. Build consistent sun safety habits with progress tracking and discreet notifications, designed to fit seamlessly into your daily routine.

**Highlights:** Log sunscreen in seconds, Track from Lock Screen/Apple Watch, Smart reapply reminders, Build streaks and view history, Subtle, silent notifications, Fits into daily routine

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $3.99 | per month |
| All Access | $3.99 | per year |
| Annual Subscription | $14.99 | per year |
| Annual Subscription | $14.99 | per year |
| Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Caffeine App free?

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

### Is spf.today free?

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

### Which has better reviews, Caffeine App or spf.today?

Caffeine App is rated higher. Caffeine App averages 4.6 out of 5 from 340 ratings, while spf.today averages 4.6 from 35 ratings.

### Do Caffeine App or spf.today have ads?

Neither Caffeine App nor spf.today shows ads.

### Which is updated more often, Caffeine App or spf.today?

Caffeine App ships an update monthly, and spf.today every 5 days. Most recently, Caffeine App was updated on August 28, 2026 and spf.today on July 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.*