Cooldown vs Lumen Playground
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Cooldown
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Cooldown shows how much of your AI subscriptions you've used before you hit the wall. Link your accounts and see every usage window, credit balance, and reset timer at a glance - in the app and in Home Screen and Lock Screen widgets. Stop getting cut off mid-task because you didn't know you were almost out. SUPPORTS 8 PROVIDERS Claude, ChatGPT / Codex, GitHub Copilot, Gemini, OpenRouter, Antigravity, Cursor, and Grok. Link more than one account per provider. WIDGET-FIRST Pick from a gallery of designs - rings, gauges, bars, battery, countdowns, and multi-account boards - sized for Small, Medium, Large, and the Lock Screen. Choose the design by name; every widget updates on its own. SMART ALERTS (all optional, all on-device) Get a heads-up at your usage thresholds, when a window resets, or when your burn rate says you'll run out before the reset. PRIVATE BY DESIGN No account to create. You sign in directly with each provider using their own secure sign-in; the tokens stay in your iPhone's Keychain and your usage is fetched straight from the provider to your device. We never see your tokens, your email, or your usage. The only data we collect is anonymous crash reports and product analytics to keep the app working - never your personal information. Independent app. Not affiliated with or endorsed by Anthropic, OpenAI, GitHub, Google, OpenRouter, Anysphere, or xAI. Cooldown offers optional auto-renewing subscriptions: - Plus: $3.99/month or $24.99/year (7-day free trial on annual) - Pro: $6.99/month or $49.99/year (7-day free trial on annual) Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://cooldown.soloship.io/privacy
Lumen Playground
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Lumen Playground is the living SwiftUI catalog for Lumen UI, a cross-platform primitive design system. Search the public component library, exercise real native controls, and compare Lumen's semantic light and dark themes directly on iPhone or iPad. Every example is built with the same LumenUI package available to application developers. Explore: β’ Foundations, actions, forms, feedback, data display, navigation, and native presentations β’ Interactive loading, disabled, selected, validation, overlay, and empty states β’ Native Dynamic Type, VoiceOver semantics, focus behavior, and platform conventions β’ Shared Lumen icons, colors, spacing, typography, and visual treatments β’ Direct links to implementation documentation and public support The catalog works without an account and does not include advertising, analytics, tracking, or data collection.
Screenshots
Verdict
The clearest difference is update cadence: Cooldown at every 2 days against Lumen Playground's every 4 days. Lumen Playground's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Cooldown ships an update every 2 days, Lumen Playground every 4 days. The most recent releases landed on September 12, 2026 and September 11, 2026 respectively.
| Parameter | Cooldown | Lumen Playground |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days β better | Every 4 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, Mac β better |
| Requires iOS | 16.4 | 16.0 β better |
| Further details β not scored | ||
| Size | 45 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Alwaleed Alfayez | Santiago Molina Orozco |
In-app purchases
Cooldown
No in-app purchases
Lumen Playground
No in-app purchases





