Comparison
UsageMeter vs ClaudeKarma: an honest comparison
In short
Pick ClaudeKarma for a toolbar-first view in Chrome with peak-hours information and free threshold alerts. Pick UsageMeter to see your limits on the claude.ai page itself, in Firefox too (Android included), with the week by product and Claude Code across your PCs.
Where they differ
| Criterion | OursUsageMeterusagemeter.app | ClaudeKarmatokenkarma |
|---|---|---|
| Your limits | ||
| Usage on the claude.ai page | YesIn the composer, or a ring under it | NoToolbar icon and popup |
| See it coming | ||
| When you'll hit the limit | Yes“Blocked around 21:40” at your recent pace | Not verified |
| Alert before the limit | PaidPro: threshold, pace, 100%; never twice across devices | Yes75, 90, 100%, off by default |
| Alert when a limit is back | PaidPro: even if it came back with the browser closed | Not verified |
| Cost of each message | Yes“+1.8%” of your session under each reply | Not verified |
| Claude outage vs your limit | YesA pill under the message box and in the popup | Not verified |
| Claude Code | ||
| Claude Code usage | YesUsageMeter Link (Windows): tokens of each PC | PartlyRoutines tracker; no token counts |
| Where Claude Code tokens go | PaidPro: sub-agents, MCP servers, skills; free preview | NoNo Claude Code token counts |
| History and sharing | ||
| History and charts | PaidPro: 24-hour and 7-day charts, CSV | YesHourly heatmap |
| GitHub README widgets | YesFree cards and badges; more themes and widgets in Pro | Not verified |
| Team view | PaidTeam plan: each member's limits and Claude Code | Not verified |
| Devices and accounts | ||
| Where it runs | Chrome, Edge, Firefox (Android too); Link on Windows | Chrome (Chrome Web Store) |
| On a phone | YesFirefox for Android | Not verifiedChrome Web Store only |
| Several Claude accounts | Yes3 free, 10 with Pro | Not verified |
| Several PCs added up | YesClaude Code tokens of all your PCs; settings synced | NoStays in one browser; sync planned |
| Privacy, price and users | ||
| Your data | Percentages and settings synced; never conversations | Local; anonymous daily heartbeat |
| Open source | No | Not verified |
| Price | Free; Pro $4.99/month | Free |
| Last update | 24 Sept 2026 · v1.6.0 | 24 Sept 2026 · v1.5.3 |
| Users and rating | 1,000 users · 5.0 ★ (14 ratings) on the Chrome Web Store · 1,698 users · 3.5 ★ (8 ratings) on Firefox Add-ons | 20,000 users · 4.8 ★ (123 ratings) on the Chrome Web Store |
What ClaudeKarma does better
- Anthropic's peak hours, with a countdown to the next change
- Free notifications at 75, 90 and 100%
- An hourly heatmap of when you use Claude
- More users: 20,000 on the Chrome Web Store
What UsageMeter does better
- A gauge on the claude.ai page, in the composer
- A Firefox version, Firefox for Android included
- The week split between chats, Claude Code and Cowork
- Claude Code tokens across Windows PCs, and where they go (Pro)
- Your settings and accounts follow you from one browser to another; ClaudeKarma keeps everything in one browser for now
Switching from ClaudeKarma to UsageMeter
What carries over
- Every limit claude.ai reports: session, week, Fable, usage credits
- A toolbar icon with your usage
What you give up
- The peak-hours banner
- Notifications before 100% without paying
- The heatmap and Karma levels
UsageMeter
usagemeter.appOursBest for: Every limit claude.ai reports, right on the page, with a forecast at your pace, Pro alerts before the wall and Claude Code across your Windows PCs.
Strengths
- A gauge in the claude.ai composer and on the toolbar for every limit claude.ai reports, free Claude accounts included
- A forecast at your recent pace (“blocked around 21:40”) and the price of each reply (“+1.8%” of your session)
- Pro alerts before the wall: at your threshold, at your pace, at 100% and when a limit is back, never twice across your devices
- Claude Code tokens added up across Windows PCs with UsageMeter Link, and where they go: sub-agents, MCP servers, skills (Pro)
- GitHub README widgets, Firefox for Android, and a note when a Claude outage, not your limit, is the problem
Limits
- Alerts are Pro only, while several other trackers here alert for free
- Charts and the Claude Code breakdown are Pro; the free plan gets a preview
- UsageMeter Link runs on Windows only
- Not open source; percentages and settings sync to usagemeter.app
What else it does
- When you'll hit the limit
- Alert before the limitPaid
- Alert when a limit is backPaid
- Cost of each message
- Claude outage vs your limit
- Where Claude Code tokens goPaid
- Several PCs added up
- GitHub README widgets
- On a phone
- Team viewPaid
1,000 users · 5.0 ★ (14 ratings) on the Chrome Web Store · 1,698 users · 3.5 ★ (8 ratings) on Firefox Add-ons (checked on 24 September 2026)
ClaudeKarma
tokenkarmaBest for: A toolbar view of every limit in Chrome, with Anthropic's peak hours and free threshold alerts.
Strengths
- Two-ring toolbar icon (session and week) that blinks from 90%
- Per-model bars: Fable 5, Opus, Sonnet, Haiku and Claude Design
- A peak-hours banner with a countdown
- Notifications at 75, 90 and 100%, free and configurable
Limits
- Nothing on the claude.ai page itself: the view is in the toolbar and popup
- Chrome Web Store only: no listing found on Firefox Add-ons
- No Claude Code token counts
- Its history and settings stay in one browser; cloud sync is planned, per its listing
- Sends an anonymous daily heartbeat and fetches its peak-hours schedule from tokenkarma.app, per its listing
What else it does
- Alert before the limit
20,000 users · 4.8 ★ (123 ratings) on the Chrome Web Store (checked on 24 September 2026)
FAQ
Does ClaudeKarma work in Firefox?
ClaudeKarma is on the Chrome Web Store; we found no ClaudeKarma listing on Firefox Add-ons on 24 September 2026. UsageMeter is on both.
Which one shows peak hours?
ClaudeKarma does, with a countdown. UsageMeter does not show peak hours.
Which one alerts me before the limit?
Both. ClaudeKarma's notifications at 75, 90 and 100% are free and off by default. UsageMeter's are Pro: at your threshold (90% by default), when your pace would block you soon, at 100% and when a limit is back, never twice across your devices.