Nitro Athletic Complex vs Clarity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Nitro Athletic Complex
This app guides your health and fitness journey by allowing you to book classes online. It integrates with Apple Health to track daily steps, distance, and calories burned, and can import data from wearable devices.
- Online class booking
- Apple Health integration
- Step tracking
- Distance tracking
- Calorie tracking
- Wearable device data import
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Guiding you through your health and fitness journey! - Book classes online in just a few clicks Apple Health App Integration Track your progress with our HealthKit app integration to import and measure your daily steps, distance or calories burnt. Also use HealthKit to import your data from a range of different wearable devices.
Clarity
This app helps you understand the impact of caffeine on your sleep, energy, and focus. Log your intake quickly and visualize how caffeine's half-life affects your daily cycles and nighttime rest.
- Fast caffeine logging
- Caffeine half-life tracking
- Sleep and recovery insights
- Focus and energy analysis
- Daily and weekly insights
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Clarity is the simplest way to understand caffeine's real impact on your sleep, energy, and focus. Log your intake fast and see how caffeine's half-life affects your entire day — from your 2PM coffee to your nighttime sleep cycles. • Fast caffeine logging and visualization • Caffeine half-life tracking and prediction • Athletes: see how caffeine affects your sleep and recovery • Focus and energy insights, daily and week-by-week Understand your 3PM crash. Improve your sleep by seeing your caffeine carry-over. Use caffeine deliberately, not accidentally. By using this app, you agree to Apple's Terms of Use (https://www.apple.com/legal/internet-services/itunes/dev/stdeula/) and our Privacy Policy.
Screenshots
Verdict
The clearest difference is in-app purchases: Nitro Athletic Complex at none against Clarity's 2. Nitro Athletic Complex also leads on ratings volume (31 vs 2) and device support (3 vs 1). Clarity's advantage is update cadence (every 2 weeks vs every 2 months) and rating (5.0 vs 4.7). On price and ads 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. Clarity sells 2 in-app purchases, starting at $2.99 per month. Nitro Athletic Complex asks for nothing beyond the download.
Clarity holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Nitro Athletic Complex has 31 ratings behind it against 2, so its average is the more settled of the two.
Nitro Athletic Complex ships an update every 2 months, Clarity every 2 weeks. The most recent releases landed on October 30, 2026 and October 16, 2026 respectively.
| Parameter | Nitro Athletic Complex | Clarity |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (31 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 31 — better | 2 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 56 MB | 25 MB |
| Age rating | 4+ | 17+ |
| Developer | TeamUp Sports | Nexus Nexus |
Customer experience
Nitro Athletic Complex
Clarity
In-app purchases
Nitro Athletic Complex
No in-app purchases
Clarity
- Clarity Plus - Monthly3 Days trial$2.991 Month
- Clarity Plus - Yearly$19.991 Year
Questions
Is Nitro Athletic Complex free?
Is Clarity free?
Which has better reviews, Nitro Athletic Complex or Clarity?
Do Nitro Athletic Complex or Clarity have ads?
Which is updated more often, Nitro Athletic Complex or Clarity?
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