| What it does | Free inventory and profit tracker for resellers who source in person at car boots, charity shops and flea markets
| Unmissable incoming-call alarms for calendar meetings. Built for deep work.
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| Stage | Startup
| Startup
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| Founded | 2026
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| Based in | GB
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| Pricing model | Free
| Freemium
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| Pricing | Completely free to download and use. No subscription, no in-app purchases, no ads, no account required. FlipperHelper Pro (web portal, eBay sync, multi-device sync) is in development but pricing has not been finalised.
| Free for personal email accounts (@gmail.com, @outlook.com, @icloud.com, @proton.me). Professional plan: $1/month billed annually at $12/year after a 14-day free trial for work domains.
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| Key features | - Track items across 16 selling platforms including eBay, Vinted, Facebook Marketplace, Depop, Poshmark and Mercari
- Offline-first functionality with full feature access at markets with no signal
- Automatic profit calculation after all fees and expenses
- Multi-currency support with daily exchange rates
- Photo capture for up to 10 images per item
- One-tap Google Sheets export and ZIP backup
- Money Flow dashboard showing revenue, costs and profit by time period
- Automatic SKU generation using Crockford Base32 encoding
| - Persistent incoming-call ring that rings continuously until you click Join
- Always-on-top banner that floats over full-screen apps and secondary monitors
- 100% local calendar processing with zero server uploads
- Automatic detection of Google Meet, Zoom, Teams, and Webex join links
- One-click direct launch into video calls without tab hunting
- Snooze options for 2, 5, or 10 minutes
- Less than 0.1% CPU idle usage with zero battery drain
- Breaks through Focus Mode, Do Not Disturb, and headphones
- Support for multiple platforms including macOS, Windows, Linux, iOS, and Android
- 14-day unrestricted trial for work domain emails with no credit card required
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| What makes it different | - Built by a solo developer specifically for real in-person reselling, not a funded product designed by a boardroom
- Fully offline operation designed around markets with poor or no signal, not offline as an afterthought
- Real profit calculation that includes all costs from day one, including trip expenses split per item
- 100% free forever with no hidden fees, ads or mandatory account creation
| - Works 100% locally on your device with zero calendar events uploaded to servers
- Designed specifically for deep focus work and flow state protection
- Rings and breaks through Focus Mode, Do Not Disturb, and full-screen applications
- Ultralight native app with negligible CPU and battery impact
- One-click entry into video meetings without searching for join links
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 5 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 3 | 0 |
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| Citation Flow (Majestic) | 23 | 12 |
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| Referring domains (Majestic) | 22 | 1 |
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Meeting Ringer