Comparison

Charge vs Headroom

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Charge

Track your AI coding usage and costs across various providers directly from your iPhone. Monitor your remaining time, weekly caps, and daily spending with at-a-glance widgets and detailed dashboards. Setup is quick, and privacy is prioritized with no access to your code or conversations.

Highlights
  • Rate-limit gauges per provider
  • Burn-rate forecasts
  • Cost dashboard (daily, weekly, monthly)
  • Plan badges and account separation
  • Multi-computer support
  • Home and Lock Screen widgets
  • Streak heatmap and cost trend
Features
Read full description

Charge shows your AI coding usage and cost on your iPhone. "How much of my 5-hour window is left?", "Am I close to the weekly cap?", "What did I spend today?" Check it away from your desk, or from Windows, in a glance. Setup takes two minutes. Sign in with Apple, paste the one-line command the app shows you into your computer's terminal, and a lightweight collector securely uploads your usage every five minutes. (Node.js 18+, macOS / Windows / Linux) WHAT YOU GET • Rate-limit gauges per provider: Claude and Codex out of the box, plus Gemini, Cursor, Copilot, OpenRouter and more through the macOS CodexBar bridge. Reset countdowns included. • Burn-rate forecasts that warn before you hit a wall: "at this pace you'll run out in about 4 hours." • Cost dashboard: today / 7-day / 30-day spend and tokens, a daily chart, and a per-model cost ranking. • Plan badges and account separation: your plan (Max 20x, Education, ...) is detected automatically, and machines signed in with different accounts get their own cards. • Multi-computer support: see which machine last reported and when, get a heads-up when one stops collecting, swipe to unpair. • Limit-reset notifications and custom gauge thresholds. • Home Screen and Lock Screen widgets, with per-provider and per-account layouts. • Streak heatmap and 14-day cost trend. PRIVACY Charge never sees your prompts, code, or conversations. The collector reads only usage counters and cost data from your local tools and uploads them under your own Apple ID. Unpair a computer any time and its token is revoked immediately. Charge is open source: github.com/baekdusan/charge

About

Headroom

Features
Read full description

See how much AI you have left and when your limits reset. Headroom brings usage from multiple services and accounts together, so you spend less time checking separate dashboards. Your remaining limits at a glance Check usage and remaining percentages for each account, along with reset times for individual limits. Switch between a countdown and the clock time of the next reset. Multiple services and accounts Connect accounts for Claude, ChatGPT/Codex, OpenCode Go, Cursor, Google Antigravity, and Grok/SuperGrok. Available limits and account details depend on the data provided by each service and subscription plan. On your Home Screen and wrist Keep frequently checked limits close with Home Screen widgets. On Apple Watch, view usage and reset times delivered from your iPhone. Watch face complications are also supported. Notifications when you need them Get alerts when newly checked usage crosses your selected threshold or reaches a limit, and enable reset reminders. Delivery depends on notification permission, your settings, and available usage updates. Made for iPhone and iPad Use Headroom on iPhone and iPad, with support for 21 languages including English and Korean. Data and refresh details Account credentials and fetched usage are stored locally on your device. The app communicates with the relevant services to sign in and retrieve usage. When an account is connected and Background refresh is enabled, Headroom sends your Apple Push Notification service (APNs) device token, push environment, and registration/update timestamps to its push server. Turning this setting off or removing all connected accounts deletes the device registration from that server. Account credentials and usage are not sent to that push server. Background refresh, widget updates, and Apple Watch delivery depend on the operating system, network connectivity, power conditions, and other system limits. Updates are not guaranteed to be real time or occur at a fixed interval. Force-quitting the iPhone app stops background refresh until you open it again. Headroom is not an official app of the supported services. Service names and trademarks belong to their respective owners. An account with the service you want to connect is required. Available information may change with provider policies.

Screenshots

Charge3 screens
Headroom4 screens

Verdict

The call

The clearest difference is device support: Headroom at 3 against Charge's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference Ā· 7 level
Charge versus Headroom: the parameters behind the verdict, then further details
ParameterChargeHeadroom
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad, Apple Watch — better
Requires iOS17.016.4 — better
Further details — not scored
Size2 MB62 MB
Age rating4+4+
DeveloperDusan BaekDonghyun Nam

In-app purchases

None

Charge

No in-app purchases

None

Headroom

No in-app purchases

Questions

Is Charge free?
Charge is free to download, with no in-app purchases.
Is Headroom free?
Headroom is free to download, with no in-app purchases.
Do Charge or Headroom have ads?
Neither Charge nor Headroom shows ads.

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